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[qemu.git] / vl.c
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0824d6fc 1/*
80cabfad 2 * QEMU System Emulator
5fafdf24 3 *
68d0f70e 4 * Copyright (c) 2003-2008 Fabrice Bellard
5fafdf24 5 *
1df912cf
FB		 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
0824d6fc 23 */
0824d6fc 24#include <unistd.h>
0824d6fc
FB		 25#include <fcntl.h>
26#include <signal.h>
27#include <time.h>
0824d6fc 28#include <errno.h>
67b915a5 29#include <sys/time.h>
c88676f8 30#include <zlib.h>
67b915a5 31
71e72a19 32/* Needed early for CONFIG_BSD etc. */
d40cdb10
BS		 33#include "config-host.h"
34
67b915a5 35#ifndef _WIN32
5cea8590 36#include <libgen.h>
0858532e 37#include <pwd.h>
67b915a5 38#include <sys/times.h>
f1510b2c 39#include <sys/wait.h>
67b915a5 40#include <termios.h>
67b915a5 41#include <sys/mman.h>
f1510b2c 42#include <sys/ioctl.h>
24646c7e 43#include <sys/resource.h>
f1510b2c 44#include <sys/socket.h>
c94c8d64 45#include <netinet/in.h>
24646c7e 46#include <net/if.h>
24646c7e 47#include <arpa/inet.h>
9d728e8c 48#include <dirent.h>
7c9d8e07 49#include <netdb.h>
cb4b976b 50#include <sys/select.h>
71e72a19 51#ifdef CONFIG_BSD
7d3505c5 52#include <sys/stat.h>
a167ba50 53#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
7d3505c5 54#include <libutil.h>
24646c7e
BS		 55#else
56#include <util.h>
128ab2ff 57#endif
bbe813a2 58#else
223f0d72 59#ifdef __linux__
7d3505c5
FB		 60#include <pty.h>
61#include <malloc.h>
fd872598 62#include <linux/rtc.h>
1889465a 63#include <sys/prctl.h>
bd494f4c
TS		 64
65/* For the benefit of older linux systems which don't supply it,
66 we use a local copy of hpet.h. */
67/* #include <linux/hpet.h> */
68#include "hpet.h"
69
e57a8c0e 70#include <linux/ppdev.h>
5867c88a 71#include <linux/parport.h>
223f0d72
BS		 72#endif
73#ifdef __sun__
d5d10bc3
TS		 74#include <sys/stat.h>
75#include <sys/ethernet.h>
76#include <sys/sockio.h>
d5d10bc3
TS		 77#include <netinet/arp.h>
78#include <netinet/in.h>
79#include <netinet/in_systm.h>
80#include <netinet/ip.h>
81#include <netinet/ip_icmp.h> // must come after ip.h
82#include <netinet/udp.h>
83#include <netinet/tcp.h>
84#include <net/if.h>
85#include <syslog.h>
86#include <stropts.h>
8d32cf0e
BS		 87/* See MySQL bug #7156 (http://bugs.mysql.com/bug.php?id=7156) for
88 discussion about Solaris header problems */
89extern int madvise(caddr_t, size_t, int);
67b915a5 90#endif
7d3505c5 91#endif
ec530c81 92#endif
67b915a5 93
9892fbfb
BS		 94#if defined(__OpenBSD__)
95#include <util.h>
96#endif
97
8a16d273
TS		 98#if defined(CONFIG_VDE)
99#include <libvdeplug.h>
100#endif
101
67b915a5 102#ifdef _WIN32
49dc768d 103#include <windows.h>
4fddf62a 104#include <mmsystem.h>
67b915a5
FB		 105#endif
106
73332e5c 107#ifdef CONFIG_SDL
59a36a2f 108#if defined(__APPLE__) || defined(main)
6693665a 109#include <SDL.h>
880fec5d 110int qemu_main(int argc, char **argv, char **envp);
111int main(int argc, char **argv)
112{
59a36a2f 113 return qemu_main(argc, argv, NULL);
880fec5d 114}
115#undef main
116#define main qemu_main
96bcd4f8 117#endif
73332e5c 118#endif /* CONFIG_SDL */
0824d6fc 119
5b0753e0
FB		 120#ifdef CONFIG_COCOA
121#undef main
122#define main qemu_main
123#endif /* CONFIG_COCOA */
124
511d2b14
BS		 125#include "hw/hw.h"
126#include "hw/boards.h"
127#include "hw/usb.h"
128#include "hw/pcmcia.h"
129#include "hw/pc.h"
130#include "hw/audiodev.h"
131#include "hw/isa.h"
132#include "hw/baum.h"
133#include "hw/bt.h"
9dd986cc 134#include "hw/watchdog.h"
b6f6e3d3 135#include "hw/smbios.h"
e37630ca 136#include "hw/xen.h"
bd3c948d 137#include "hw/qdev.h"
45a50b16 138#include "hw/loader.h"
5ef4efa4 139#include "bt-host.h"
511d2b14 140#include "net.h"
68ac40d2 141#include "net/slirp.h"
511d2b14
BS		 142#include "monitor.h"
143#include "console.h"
144#include "sysemu.h"
145#include "gdbstub.h"
146#include "qemu-timer.h"
147#include "qemu-char.h"
148#include "cache-utils.h"
149#include "block.h"
c163b5ca 150#include "block_int.h"
151#include "block-migration.h"
a718acec 152#include "dma.h"
511d2b14
BS		 153#include "audio/audio.h"
154#include "migration.h"
155#include "kvm.h"
156#include "balloon.h"
d3f24367 157#include "qemu-option.h"
7282a033 158#include "qemu-config.h"
e78c48ec 159#include "qemu-objects.h"
511d2b14 160
0824d6fc 161#include "disas.h"
fc01f7e7 162
8a7ddc38 163#include "exec-all.h"
0824d6fc 164
511d2b14
BS		 165#include "qemu_socket.h"
166
d918f23e 167#include "slirp/libslirp.h"
511d2b14 168
72cf2d4f
BS		 169#include "qemu-queue.h"
170
9dc63a1e
BS		 171//#define DEBUG_NET
172//#define DEBUG_SLIRP
330d0414 173
1bfe856e 174#define DEFAULT_RAM_SIZE 128
313aa567 175
98b19252
AS		 176#define MAX_VIRTIO_CONSOLES 1
177
5cea8590 178static const char *data_dir;
1192dad8 179const char *bios_name = NULL;
e4bcb14c 180/* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
faea38e7 181 to store the VM snapshots */
72cf2d4f
BS		 182struct drivelist drives = QTAILQ_HEAD_INITIALIZER(drives);
183struct driveoptlist driveopts = QTAILQ_HEAD_INITIALIZER(driveopts);
cb5a7aa8 184enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
3023f332 185static DisplayState *display_state;
993fbfdb 186DisplayType display_type = DT_DEFAULT;
3d11d0eb 187const char* keyboard_layout = NULL;
c227f099 188ram_addr_t ram_size;
c4b1fcc0 189int nb_nics;
7c9d8e07 190NICInfo nd_table[MAX_NICS];
8a7ddc38 191int vm_running;
d399f677 192int autostart;
f6503059
AZ		 193static int rtc_utc = 1;
194static int rtc_date_offset = -1; /* -1 means no change */
6875204c 195QEMUClock *rtc_clock;
64465297 196int vga_interface_type = VGA_NONE;
d827220b
FB		 197#ifdef TARGET_SPARC
198int graphic_width = 1024;
199int graphic_height = 768;
eee0b836 200int graphic_depth = 8;
d827220b 201#else
1bfe856e
FB		 202int graphic_width = 800;
203int graphic_height = 600;
e9b137c2 204int graphic_depth = 15;
eee0b836 205#endif
dbed7e40 206static int full_screen = 0;
634a21f6 207#ifdef CONFIG_SDL
dbed7e40 208static int no_frame = 0;
634a21f6 209#endif
667accab 210int no_quit = 0;
8d11df9e 211CharDriverState *serial_hds[MAX_SERIAL_PORTS];
6508fe59 212CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
9ede2fde 213CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
a09db21f
FB		 214#ifdef TARGET_I386
215int win2k_install_hack = 0;
73822ec8 216int rtc_td_hack = 0;
a09db21f 217#endif
bb36d470 218int usb_enabled = 0;
1b530a6d 219int singlestep = 0;
6a00d601 220int smp_cpus = 1;
6be68d7e 221int max_cpus = 0;
dc6b1c09
AP		 222int smp_cores = 1;
223int smp_threads = 1;
73fc9742 224const char *vnc_display;
6515b203 225int acpi_enabled = 1;
16b29ae1 226int no_hpet = 0;
52ca8d6a 227int fd_bootchk = 1;
d1beab82 228int no_reboot = 0;
b2f76161 229int no_shutdown = 0;
9467cd46 230int cursor_hide = 1;
a171fe39 231int graphic_rotate = 0;
6b35e7bf 232uint8_t irq0override = 1;
b9e82a59 233#ifndef _WIN32
71e3ceb8 234int daemonize = 0;
b9e82a59 235#endif
09aaa160 236const char *watchdog;
9ae02555
TS		 237const char *option_rom[MAX_OPTION_ROMS];
238int nb_option_roms;
8e71621f 239int semihosting_enabled = 0;
2b8f2d41
AZ		 240#ifdef TARGET_ARM
241int old_param = 0;
242#endif
c35734b2 243const char *qemu_name;
3780e197 244int alt_grab = 0;
0ca9f8a4 245int ctrl_grab = 0;
95efd11c 246#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 247unsigned int nb_prom_envs = 0;
248const char *prom_envs[MAX_PROM_ENVS];
249#endif
95387491 250int boot_menu;
0824d6fc 251
268a362c
AL		 252int nb_numa_nodes;
253uint64_t node_mem[MAX_NODES];
254uint64_t node_cpumask[MAX_NODES];
255
ee5605e5
AZ		 256static CPUState *cur_cpu;
257static CPUState *next_cpu;
43b96858 258static int timer_alarm_pending = 1;
bf20dc07 259/* Conversion factor from emulated instructions to virtual clock ticks. */
2e70f6ef 260static int icount_time_shift;
bf20dc07 261/* Arbitrarily pick 1MIPS as the minimum allowable speed. */
2e70f6ef
PB		 262#define MAX_ICOUNT_SHIFT 10
263/* Compensate for varying guest execution speed. */
264static int64_t qemu_icount_bias;
dbed7e40
BS		 265static QEMUTimer *icount_rt_timer;
266static QEMUTimer *icount_vm_timer;
9043b62d 267static QEMUTimer *nographic_timer;
ee5605e5 268
8fcb1b90
BS		 269uint8_t qemu_uuid[16];
270
76e30d0f
JK		 271static QEMUBootSetHandler *boot_set_handler;
272static void *boot_set_opaque;
273
998bbd74 274static int default_serial = 1;
6a5e8b0e 275static int default_parallel = 1;
986c5f78 276static int default_virtcon = 1;
abdeed06 277static int default_monitor = 1;
64465297 278static int default_vga = 1;
ac33f8fa
GH		 279static int default_floppy = 1;
280static int default_cdrom = 1;
281static int default_sdcard = 1;
998bbd74
GH		 282
283static struct {
284 const char *driver;
285 int *flag;
286} default_list[] = {
6a5e8b0e
GH		 287 { .driver = "isa-serial", .flag = &default_serial },
288 { .driver = "isa-parallel", .flag = &default_parallel },
d8bcbabf
GH		 289 { .driver = "isa-fdc", .flag = &default_floppy },
290 { .driver = "ide-drive", .flag = &default_cdrom },
392ecf54
AS		 291 { .driver = "virtio-serial-pci", .flag = &default_virtcon },
292 { .driver = "virtio-serial-s390", .flag = &default_virtcon },
293 { .driver = "virtio-serial", .flag = &default_virtcon },
64465297 294 { .driver = "VGA", .flag = &default_vga },
69fd02ee
GH		 295 { .driver = "cirrus-vga", .flag = &default_vga },
296 { .driver = "vmware-svga", .flag = &default_vga },
998bbd74
GH		 297};
298
299static int default_driver_check(QemuOpts *opts, void *opaque)
300{
301 const char *driver = qemu_opt_get(opts, "driver");
302 int i;
303
304 if (!driver)
305 return 0;
306 for (i = 0; i < ARRAY_SIZE(default_list); i++) {
307 if (strcmp(default_list[i].driver, driver) != 0)
308 continue;
309 *(default_list[i].flag) = 0;
310 }
311 return 0;
312}
313
0824d6fc 314/***********************************************************/
26aa7d72
FB		 315/* x86 ISA bus support */
316
c227f099 317target_phys_addr_t isa_mem_base = 0;
3de388f6 318PicState2 *isa_pic;
0824d6fc 319
0824d6fc 320/***********************************************************/
0824d6fc
FB		 321void hw_error(const char *fmt, ...)
322{
323 va_list ap;
6a00d601 324 CPUState *env;
0824d6fc
FB		 325
326 va_start(ap, fmt);
327 fprintf(stderr, "qemu: hardware error: ");
328 vfprintf(stderr, fmt, ap);
329 fprintf(stderr, "\n");
6a00d601
FB		 330 for(env = first_cpu; env != NULL; env = env->next_cpu) {
331 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
0824d6fc 332#ifdef TARGET_I386
6a00d601 333 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
c45886db 334#else
6a00d601 335 cpu_dump_state(env, stderr, fprintf, 0);
0824d6fc 336#endif
6a00d601 337 }
0824d6fc
FB		 338 va_end(ap);
339 abort();
340}
1889465a
AK		 341
342static void set_proc_name(const char *s)
343{
6ca8d0fd 344#if defined(__linux__) && defined(PR_SET_NAME)
1889465a
AK		 345 char name[16];
346 if (!s)
347 return;
348 name[sizeof(name) - 1] = 0;
349 strncpy(name, s, sizeof(name));
350 /* Could rewrite argv[0] too, but that's a bit more complicated.
351 This simple way is enough for `top'. */
352 prctl(PR_SET_NAME, name);
353#endif
354}
df751fa8
AL		 355
356/***************/
357/* ballooning */
358
359static QEMUBalloonEvent *qemu_balloon_event;
360void *qemu_balloon_event_opaque;
361
362void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
363{
364 qemu_balloon_event = func;
365 qemu_balloon_event_opaque = opaque;
366}
367
c227f099 368void qemu_balloon(ram_addr_t target)
df751fa8
AL		 369{
370 if (qemu_balloon_event)
371 qemu_balloon_event(qemu_balloon_event_opaque, target);
372}
373
c227f099 374ram_addr_t qemu_balloon_status(void)
df751fa8
AL		 375{
376 if (qemu_balloon_event)
377 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
378 return 0;
379}
0824d6fc 380
455204eb 381
8f0056b7
PB		 382/***********************************************************/
383/* real time host monotonic timer */
09b26c5e 384
1dce7c3c
FB		 385/* compute with 96 bit intermediate result: (a*b)/c */
386uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
0824d6fc 387{
1dce7c3c
FB		 388 union {
389 uint64_t ll;
390 struct {
e2542fe2 391#ifdef HOST_WORDS_BIGENDIAN
1dce7c3c
FB		 392 uint32_t high, low;
393#else
394 uint32_t low, high;
3b46e624 395#endif
1dce7c3c
FB		 396 } l;
397 } u, res;
398 uint64_t rl, rh;
0824d6fc 399
1dce7c3c
FB		 400 u.ll = a;
401 rl = (uint64_t)u.l.low * (uint64_t)b;
402 rh = (uint64_t)u.l.high * (uint64_t)b;
403 rh += (rl >> 32);
404 res.l.high = rh / c;
405 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
406 return res.ll;
34865134
FB		 407}
408
21d5d12b
JK		 409static int64_t get_clock_realtime(void)
410{
411 struct timeval tv;
412
413 gettimeofday(&tv, NULL);
414 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
415}
416
1dce7c3c 417#ifdef WIN32
0824d6fc 418
1dce7c3c 419static int64_t clock_freq;
1115dde7 420
1dce7c3c 421static void init_get_clock(void)
1115dde7 422{
a8e5ac33
FB		 423 LARGE_INTEGER freq;
424 int ret;
1dce7c3c
FB		 425 ret = QueryPerformanceFrequency(&freq);
426 if (ret == 0) {
427 fprintf(stderr, "Could not calibrate ticks\n");
428 exit(1);
429 }
430 clock_freq = freq.QuadPart;
1115dde7
FB		 431}
432
1dce7c3c 433static int64_t get_clock(void)
b8076a74 434{
1dce7c3c
FB		 435 LARGE_INTEGER ti;
436 QueryPerformanceCounter(&ti);
274dfed8 437 return muldiv64(ti.QuadPart, get_ticks_per_sec(), clock_freq);
b8076a74
FB		 438}
439
1dce7c3c 440#else
90cb9493 441
1dce7c3c
FB		 442static int use_rt_clock;
443
444static void init_get_clock(void)
90cb9493 445{
1dce7c3c 446 use_rt_clock = 0;
c5e97233 447#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
a167ba50 448 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
1dce7c3c
FB		 449 {
450 struct timespec ts;
451 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
452 use_rt_clock = 1;
453 }
454 }
455#endif
90cb9493
FB		 456}
457
1dce7c3c 458static int64_t get_clock(void)
fdbb4691 459{
c5e97233 460#if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
a167ba50 461 || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
1dce7c3c
FB		 462 if (use_rt_clock) {
463 struct timespec ts;
464 clock_gettime(CLOCK_MONOTONIC, &ts);
465 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
5fafdf24 466 } else
fdbb4691 467#endif
1dce7c3c
FB		 468 {
469 /* XXX: using gettimeofday leads to problems if the date
470 changes, so it should be avoided. */
21d5d12b 471 return get_clock_realtime();
1dce7c3c 472 }
fdbb4691 473}
34865134
FB		 474#endif
475
2e70f6ef
PB		 476/* Return the virtual CPU time, based on the instruction counter. */
477static int64_t cpu_get_icount(void)
478{
479 int64_t icount;
480 CPUState *env = cpu_single_env;;
481 icount = qemu_icount;
482 if (env) {
483 if (!can_do_io(env))
484 fprintf(stderr, "Bad clock read\n");
485 icount -= (env->icount_decr.u16.low + env->icount_extra);
486 }
487 return qemu_icount_bias + (icount << icount_time_shift);
488}
489
1dce7c3c
FB		 490/***********************************************************/
491/* guest cycle counter */
492
6f68e33e
JQ		 493typedef struct TimersState {
494 int64_t cpu_ticks_prev;
495 int64_t cpu_ticks_offset;
496 int64_t cpu_clock_offset;
497 int32_t cpu_ticks_enabled;
274dfed8 498 int64_t dummy;
6f68e33e
JQ		 499} TimersState;
500
501TimersState timers_state;
34865134 502
1dce7c3c
FB		 503/* return the host CPU cycle counter and handle stop/restart */
504int64_t cpu_get_ticks(void)
34865134 505{
2e70f6ef
PB		 506 if (use_icount) {
507 return cpu_get_icount();
508 }
6f68e33e
JQ		 509 if (!timers_state.cpu_ticks_enabled) {
510 return timers_state.cpu_ticks_offset;
8a7ddc38 511 } else {
eade0f19
FB		 512 int64_t ticks;
513 ticks = cpu_get_real_ticks();
6f68e33e 514 if (timers_state.cpu_ticks_prev > ticks) {
eade0f19
FB		 515 /* Note: non increasing ticks may happen if the host uses
516 software suspend */
6f68e33e 517 timers_state.cpu_ticks_offset += timers_state.cpu_ticks_prev - ticks;
eade0f19 518 }
6f68e33e
JQ		 519 timers_state.cpu_ticks_prev = ticks;
520 return ticks + timers_state.cpu_ticks_offset;
8a7ddc38 521 }
34865134
FB		 522}
523
1dce7c3c
FB		 524/* return the host CPU monotonic timer and handle stop/restart */
525static int64_t cpu_get_clock(void)
526{
527 int64_t ti;
6f68e33e
JQ		 528 if (!timers_state.cpu_ticks_enabled) {
529 return timers_state.cpu_clock_offset;
1dce7c3c
FB		 530 } else {
531 ti = get_clock();
6f68e33e 532 return ti + timers_state.cpu_clock_offset;
1dce7c3c
FB		 533 }
534}
535
34865134
FB		 536/* enable cpu_get_ticks() */
537void cpu_enable_ticks(void)
538{
6f68e33e
JQ		 539 if (!timers_state.cpu_ticks_enabled) {
540 timers_state.cpu_ticks_offset -= cpu_get_real_ticks();
541 timers_state.cpu_clock_offset -= get_clock();
542 timers_state.cpu_ticks_enabled = 1;
8a7ddc38 543 }
34865134
FB		 544}
545
546/* disable cpu_get_ticks() : the clock is stopped. You must not call
547 cpu_get_ticks() after that. */
548void cpu_disable_ticks(void)
549{
6f68e33e
JQ		 550 if (timers_state.cpu_ticks_enabled) {
551 timers_state.cpu_ticks_offset = cpu_get_ticks();
552 timers_state.cpu_clock_offset = cpu_get_clock();
553 timers_state.cpu_ticks_enabled = 0;
8a7ddc38 554 }
34865134
FB		 555}
556
1dce7c3c
FB		 557/***********************************************************/
558/* timers */
5fafdf24 559
0fdddf80
JK		 560#define QEMU_CLOCK_REALTIME 0
561#define QEMU_CLOCK_VIRTUAL 1
21d5d12b 562#define QEMU_CLOCK_HOST 2
8a7ddc38
FB		 563
564struct QEMUClock {
565 int type;
566 /* XXX: add frequency */
567};
568
569struct QEMUTimer {
570 QEMUClock *clock;
571 int64_t expire_time;
572 QEMUTimerCB *cb;
573 void *opaque;
574 struct QEMUTimer *next;
575};
576
c8994013
TS		 577struct qemu_alarm_timer {
578 char const *name;
efe75411 579 unsigned int flags;
c8994013
TS		 580
581 int (*start)(struct qemu_alarm_timer *t);
582 void (*stop)(struct qemu_alarm_timer *t);
efe75411 583 void (*rearm)(struct qemu_alarm_timer *t);
c8994013
TS		 584 void *priv;
585};
586
efe75411 587#define ALARM_FLAG_DYNTICKS 0x1
d5d08334 588#define ALARM_FLAG_EXPIRED 0x2
efe75411
TS		 589
590static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
591{
e332340a 592 return t && (t->flags & ALARM_FLAG_DYNTICKS);
efe75411
TS		 593}
594
595static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
596{
597 if (!alarm_has_dynticks(t))
598 return;
599
600 t->rearm(t);
601}
602
603/* TODO: MIN_TIMER_REARM_US should be optimized */
604#define MIN_TIMER_REARM_US 250
605
c8994013 606static struct qemu_alarm_timer *alarm_timer;
8a7ddc38 607
40c3bac3 608#ifdef _WIN32
c8994013
TS		 609
610struct qemu_alarm_win32 {
611 MMRESULT timerId;
c8994013 612 unsigned int period;
ef28c4b0 613} alarm_win32_data = {0, -1};
c8994013
TS		 614
615static int win32_start_timer(struct qemu_alarm_timer *t);
616static void win32_stop_timer(struct qemu_alarm_timer *t);
efe75411 617static void win32_rearm_timer(struct qemu_alarm_timer *t);
c8994013 618
40c3bac3 619#else
c8994013
TS		 620
621static int unix_start_timer(struct qemu_alarm_timer *t);
622static void unix_stop_timer(struct qemu_alarm_timer *t);
623
231c6586
TS		 624#ifdef __linux__
625
efe75411
TS		 626static int dynticks_start_timer(struct qemu_alarm_timer *t);
627static void dynticks_stop_timer(struct qemu_alarm_timer *t);
628static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
629
c40ec5a9
TS		 630static int hpet_start_timer(struct qemu_alarm_timer *t);
631static void hpet_stop_timer(struct qemu_alarm_timer *t);
632
c8994013
TS		 633static int rtc_start_timer(struct qemu_alarm_timer *t);
634static void rtc_stop_timer(struct qemu_alarm_timer *t);
635
efe75411 636#endif /* __linux__ */
8a7ddc38 637
c8994013
TS		 638#endif /* _WIN32 */
639
2e70f6ef 640/* Correlation between real and virtual time is always going to be
bf20dc07 641 fairly approximate, so ignore small variation.
2e70f6ef
PB		 642 When the guest is idle real and virtual time will be aligned in
643 the IO wait loop. */
274dfed8 644#define ICOUNT_WOBBLE (get_ticks_per_sec() / 10)
2e70f6ef
PB		 645
646static void icount_adjust(void)
647{
648 int64_t cur_time;
649 int64_t cur_icount;
650 int64_t delta;
651 static int64_t last_delta;
652 /* If the VM is not running, then do nothing. */
653 if (!vm_running)
654 return;
655
656 cur_time = cpu_get_clock();
657 cur_icount = qemu_get_clock(vm_clock);
658 delta = cur_icount - cur_time;
659 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
660 if (delta > 0
661 && last_delta + ICOUNT_WOBBLE < delta * 2
662 && icount_time_shift > 0) {
663 /* The guest is getting too far ahead. Slow time down. */
664 icount_time_shift--;
665 }
666 if (delta < 0
667 && last_delta - ICOUNT_WOBBLE > delta * 2
668 && icount_time_shift < MAX_ICOUNT_SHIFT) {
669 /* The guest is getting too far behind. Speed time up. */
670 icount_time_shift++;
671 }
672 last_delta = delta;
673 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
674}
675
676static void icount_adjust_rt(void * opaque)
677{
678 qemu_mod_timer(icount_rt_timer,
679 qemu_get_clock(rt_clock) + 1000);
680 icount_adjust();
681}
682
683static void icount_adjust_vm(void * opaque)
684{
685 qemu_mod_timer(icount_vm_timer,
274dfed8 686 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
2e70f6ef
PB		 687 icount_adjust();
688}
689
690static void init_icount_adjust(void)
691{
692 /* Have both realtime and virtual time triggers for speed adjustment.
693 The realtime trigger catches emulated time passing too slowly,
694 the virtual time trigger catches emulated time passing too fast.
695 Realtime triggers occur even when idle, so use them less frequently
696 than VM triggers. */
697 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
698 qemu_mod_timer(icount_rt_timer,
699 qemu_get_clock(rt_clock) + 1000);
700 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
701 qemu_mod_timer(icount_vm_timer,
274dfed8 702 qemu_get_clock(vm_clock) + get_ticks_per_sec() / 10);
2e70f6ef
PB		 703}
704
c8994013 705static struct qemu_alarm_timer alarm_timers[] = {
efe75411 706#ifndef _WIN32
231c6586 707#ifdef __linux__
efe75411
TS		 708 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
709 dynticks_stop_timer, dynticks_rearm_timer, NULL},
c40ec5a9 710 /* HPET - if available - is preferred */
efe75411 711 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
c40ec5a9 712 /* ...otherwise try RTC */
efe75411 713 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
c8994013 714#endif
efe75411 715 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
c8994013 716#else
efe75411
TS		 717 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
718 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
719 {"win32", 0, win32_start_timer,
720 win32_stop_timer, NULL, &alarm_win32_data},
c8994013
TS		 721#endif
722 {NULL, }
723};
724
3f47aa8c 725static void show_available_alarms(void)
f3dcfada
TS		 726{
727 int i;
728
729 printf("Available alarm timers, in order of precedence:\n");
730 for (i = 0; alarm_timers[i].name; i++)
731 printf("%s\n", alarm_timers[i].name);
732}
733
734static void configure_alarms(char const *opt)
735{
736 int i;
737 int cur = 0;
b1503cda 738 int count = ARRAY_SIZE(alarm_timers) - 1;
f3dcfada
TS		 739 char *arg;
740 char *name;
2e70f6ef 741 struct qemu_alarm_timer tmp;
f3dcfada 742
3adda04c 743 if (!strcmp(opt, "?")) {
f3dcfada
TS		 744 show_available_alarms();
745 exit(0);
746 }
747
73ffc805 748 arg = qemu_strdup(opt);
f3dcfada
TS		 749
750 /* Reorder the array */
751 name = strtok(arg, ",");
752 while (name) {
e2b577e5 753 for (i = 0; i < count && alarm_timers[i].name; i++) {
f3dcfada
TS		 754 if (!strcmp(alarm_timers[i].name, name))
755 break;
756 }
757
758 if (i == count) {
759 fprintf(stderr, "Unknown clock %s\n", name);
760 goto next;
761 }
762
763 if (i < cur)
764 /* Ignore */
765 goto next;
766
767 /* Swap */
768 tmp = alarm_timers[i];
769 alarm_timers[i] = alarm_timers[cur];
770 alarm_timers[cur] = tmp;
771
772 cur++;
773next:
774 name = strtok(NULL, ",");
775 }
776
73ffc805 777 qemu_free(arg);
f3dcfada
TS		 778
779 if (cur) {
2e70f6ef 780 /* Disable remaining timers */
f3dcfada
TS		 781 for (i = cur; i < count; i++)
782 alarm_timers[i].name = NULL;
3adda04c
AJ		 783 } else {
784 show_available_alarms();
785 exit(1);
f3dcfada 786 }
f3dcfada
TS		 787}
788
21d5d12b
JK		 789#define QEMU_NUM_CLOCKS 3
790
c8994013
TS		 791QEMUClock *rt_clock;
792QEMUClock *vm_clock;
21d5d12b 793QEMUClock *host_clock;
c8994013 794
21d5d12b 795static QEMUTimer *active_timers[QEMU_NUM_CLOCKS];
c8994013 796
9596ebb7 797static QEMUClock *qemu_new_clock(int type)
8a7ddc38
FB		 798{
799 QEMUClock *clock;
800 clock = qemu_mallocz(sizeof(QEMUClock));
8a7ddc38
FB		 801 clock->type = type;
802 return clock;
803}
804
805QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
806{
807 QEMUTimer *ts;
808
809 ts = qemu_mallocz(sizeof(QEMUTimer));
810 ts->clock = clock;
811 ts->cb = cb;
812 ts->opaque = opaque;
813 return ts;
814}
815
816void qemu_free_timer(QEMUTimer *ts)
817{
818 qemu_free(ts);
819}
820
821/* stop a timer, but do not dealloc it */
822void qemu_del_timer(QEMUTimer *ts)
823{
824 QEMUTimer **pt, *t;
825
826 /* NOTE: this code must be signal safe because
827 qemu_timer_expired() can be called from a signal. */
828 pt = &active_timers[ts->clock->type];
829 for(;;) {
830 t = *pt;
831 if (!t)
832 break;
833 if (t == ts) {
834 *pt = t->next;
835 break;
836 }
837 pt = &t->next;
838 }
839}
840
841/* modify the current timer so that it will be fired when current_time
842 >= expire_time. The corresponding callback will be called. */
843void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
844{
845 QEMUTimer **pt, *t;
846
847 qemu_del_timer(ts);
848
849 /* add the timer in the sorted list */
850 /* NOTE: this code must be signal safe because
851 qemu_timer_expired() can be called from a signal. */
852 pt = &active_timers[ts->clock->type];
853 for(;;) {
854 t = *pt;
855 if (!t)
856 break;
5fafdf24 857 if (t->expire_time > expire_time)
8a7ddc38
FB		 858 break;
859 pt = &t->next;
860 }
861 ts->expire_time = expire_time;
862 ts->next = *pt;
863 *pt = ts;
d5d08334
AZ		 864
865 /* Rearm if necessary */
2e70f6ef
PB		 866 if (pt == &active_timers[ts->clock->type]) {
867 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
868 qemu_rearm_alarm_timer(alarm_timer);
869 }
870 /* Interrupt execution to force deadline recalculation. */
d9f75a4e
AL		 871 if (use_icount)
872 qemu_notify_event();
2e70f6ef 873 }
8a7ddc38
FB		 874}
875
876int qemu_timer_pending(QEMUTimer *ts)
877{
878 QEMUTimer *t;
879 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
880 if (t == ts)
881 return 1;
882 }
883 return 0;
884}
885
2430ffe4 886int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
8a7ddc38
FB		 887{
888 if (!timer_head)
889 return 0;
890 return (timer_head->expire_time <= current_time);
891}
892
893static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
894{
895 QEMUTimer *ts;
3b46e624 896
8a7ddc38
FB		 897 for(;;) {
898 ts = *ptimer_head;
e95c8d51 899 if (!ts || ts->expire_time > current_time)
8a7ddc38
FB		 900 break;
901 /* remove timer from the list before calling the callback */
902 *ptimer_head = ts->next;
903 ts->next = NULL;
3b46e624 904
8a7ddc38
FB		 905 /* run the callback (the timer list can be modified) */
906 ts->cb(ts->opaque);
907 }
908}
909
910int64_t qemu_get_clock(QEMUClock *clock)
911{
912 switch(clock->type) {
0fdddf80 913 case QEMU_CLOCK_REALTIME:
1dce7c3c 914 return get_clock() / 1000000;
8a7ddc38 915 default:
0fdddf80 916 case QEMU_CLOCK_VIRTUAL:
2e70f6ef
PB		 917 if (use_icount) {
918 return cpu_get_icount();
919 } else {
920 return cpu_get_clock();
921 }
21d5d12b
JK		 922 case QEMU_CLOCK_HOST:
923 return get_clock_realtime();
8a7ddc38
FB		 924 }
925}
926
0fdddf80 927static void init_clocks(void)
1dce7c3c
FB		 928{
929 init_get_clock();
0fdddf80
JK		 930 rt_clock = qemu_new_clock(QEMU_CLOCK_REALTIME);
931 vm_clock = qemu_new_clock(QEMU_CLOCK_VIRTUAL);
21d5d12b 932 host_clock = qemu_new_clock(QEMU_CLOCK_HOST);
6875204c
JK		 933
934 rtc_clock = host_clock;
1dce7c3c
FB		 935}
936
8a7ddc38
FB		 937/* save a timer */
938void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
939{
940 uint64_t expire_time;
941
942 if (qemu_timer_pending(ts)) {
943 expire_time = ts->expire_time;
944 } else {
945 expire_time = -1;
946 }
947 qemu_put_be64(f, expire_time);
948}
949
950void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
951{
952 uint64_t expire_time;
953
954 expire_time = qemu_get_be64(f);
955 if (expire_time != -1) {
956 qemu_mod_timer(ts, expire_time);
957 } else {
958 qemu_del_timer(ts);
959 }
960}
961
2faf58cd
JQ		 962static const VMStateDescription vmstate_timers = {
963 .name = "timer",
964 .version_id = 2,
965 .minimum_version_id = 1,
966 .minimum_version_id_old = 1,
967 .fields = (VMStateField []) {
968 VMSTATE_INT64(cpu_ticks_offset, TimersState),
274dfed8 969 VMSTATE_INT64(dummy, TimersState),
2faf58cd
JQ		 970 VMSTATE_INT64_V(cpu_clock_offset, TimersState, 2),
971 VMSTATE_END_OF_LIST()
c88676f8 972 }
2faf58cd 973};
8a7ddc38 974
50317c7f
AL		 975static void qemu_event_increment(void);
976
67b915a5 977#ifdef _WIN32
b9e82a59
BS		 978static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
979 DWORD_PTR dwUser, DWORD_PTR dw1,
980 DWORD_PTR dw2)
67b915a5 981#else
8a7ddc38 982static void host_alarm_handler(int host_signum)
67b915a5 983#endif
8a7ddc38 984{
02ba45c5
FB		 985#if 0
986#define DISP_FREQ 1000
987 {
988 static int64_t delta_min = INT64_MAX;
989 static int64_t delta_max, delta_cum, last_clock, delta, ti;
990 static int count;
991 ti = qemu_get_clock(vm_clock);
992 if (last_clock != 0) {
993 delta = ti - last_clock;
994 if (delta < delta_min)
995 delta_min = delta;
996 if (delta > delta_max)
997 delta_max = delta;
998 delta_cum += delta;
999 if (++count == DISP_FREQ) {
26a76461 1000 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
6ee093c9
JQ		 1001 muldiv64(delta_min, 1000000, get_ticks_per_sec()),
1002 muldiv64(delta_max, 1000000, get_ticks_per_sec()),
1003 muldiv64(delta_cum, 1000000 / DISP_FREQ, get_ticks_per_sec()),
1004 (double)get_ticks_per_sec() / ((double)delta_cum / DISP_FREQ));
02ba45c5
FB		 1005 count = 0;
1006 delta_min = INT64_MAX;
1007 delta_max = 0;
1008 delta_cum = 0;
1009 }
1010 }
1011 last_clock = ti;
1012 }
1013#endif
efe75411 1014 if (alarm_has_dynticks(alarm_timer) ||
2e70f6ef 1015 (!use_icount &&
0fdddf80 1016 qemu_timer_expired(active_timers[QEMU_CLOCK_VIRTUAL],
2e70f6ef 1017 qemu_get_clock(vm_clock))) ||
0fdddf80 1018 qemu_timer_expired(active_timers[QEMU_CLOCK_REALTIME],
21d5d12b
JK		 1019 qemu_get_clock(rt_clock)) ||
1020 qemu_timer_expired(active_timers[QEMU_CLOCK_HOST],
1021 qemu_get_clock(host_clock))) {
50317c7f 1022 qemu_event_increment();
e332340a 1023 if (alarm_timer) alarm_timer->flags |= ALARM_FLAG_EXPIRED;
d5d08334 1024
d6dc3d42
AL		 1025#ifndef CONFIG_IOTHREAD
1026 if (next_cpu) {
4f8eb8da 1027 /* stop the currently executing cpu because a timer occured */
d6dc3d42 1028 cpu_exit(next_cpu);
4f8eb8da 1029 }
d6dc3d42 1030#endif
43b96858 1031 timer_alarm_pending = 1;
d9f75a4e 1032 qemu_notify_event();
8a7ddc38
FB		 1033 }
1034}
1035
2e70f6ef 1036static int64_t qemu_next_deadline(void)
efe75411 1037{
21d5d12b
JK		 1038 /* To avoid problems with overflow limit this to 2^32. */
1039 int64_t delta = INT32_MAX;
efe75411 1040
0fdddf80
JK		 1041 if (active_timers[QEMU_CLOCK_VIRTUAL]) {
1042 delta = active_timers[QEMU_CLOCK_VIRTUAL]->expire_time -
2e70f6ef 1043 qemu_get_clock(vm_clock);
21d5d12b
JK		 1044 }
1045 if (active_timers[QEMU_CLOCK_HOST]) {
1046 int64_t hdelta = active_timers[QEMU_CLOCK_HOST]->expire_time -
1047 qemu_get_clock(host_clock);
1048 if (hdelta < delta)
1049 delta = hdelta;
efe75411
TS		 1050 }
1051
2e70f6ef
PB		 1052 if (delta < 0)
1053 delta = 0;
efe75411 1054
2e70f6ef
PB		 1055 return delta;
1056}
1057
f64382ba 1058#if defined(__linux__)
2e70f6ef
PB		 1059static uint64_t qemu_next_deadline_dyntick(void)
1060{
1061 int64_t delta;
1062 int64_t rtdelta;
1063
1064 if (use_icount)
1065 delta = INT32_MAX;
1066 else
1067 delta = (qemu_next_deadline() + 999) / 1000;
1068
0fdddf80
JK		 1069 if (active_timers[QEMU_CLOCK_REALTIME]) {
1070 rtdelta = (active_timers[QEMU_CLOCK_REALTIME]->expire_time -
2e70f6ef
PB		 1071 qemu_get_clock(rt_clock))*1000;
1072 if (rtdelta < delta)
1073 delta = rtdelta;
1074 }
1075
1076 if (delta < MIN_TIMER_REARM_US)
1077 delta = MIN_TIMER_REARM_US;
1078
1079 return delta;
efe75411 1080}
8632fb9a 1081#endif
efe75411 1082
fd872598
FB		 1083#ifndef _WIN32
1084
7183b4b4
AL		 1085/* Sets a specific flag */
1086static int fcntl_setfl(int fd, int flag)
1087{
1088 int flags;
1089
1090 flags = fcntl(fd, F_GETFL);
1091 if (flags == -1)
1092 return -errno;
1093
1094 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1095 return -errno;
1096
1097 return 0;
1098}
1099
829309c7
FB		 1100#if defined(__linux__)
1101
fd872598
FB		 1102#define RTC_FREQ 1024
1103
de9a95f0 1104static void enable_sigio_timer(int fd)
c8994013
TS		 1105{
1106 struct sigaction act;
1107
1108 /* timer signal */
1109 sigfillset(&act.sa_mask);
1110 act.sa_flags = 0;
c8994013
TS		 1111 act.sa_handler = host_alarm_handler;
1112
1113 sigaction(SIGIO, &act, NULL);
7183b4b4 1114 fcntl_setfl(fd, O_ASYNC);
c8994013
TS		 1115 fcntl(fd, F_SETOWN, getpid());
1116}
829309c7 1117
c40ec5a9
TS		 1118static int hpet_start_timer(struct qemu_alarm_timer *t)
1119{
1120 struct hpet_info info;
1121 int r, fd;
1122
40ff6d7e 1123 fd = qemu_open("/dev/hpet", O_RDONLY);
c40ec5a9
TS		 1124 if (fd < 0)
1125 return -1;
1126
1127 /* Set frequency */
1128 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1129 if (r < 0) {
1130 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1131 "error, but for better emulation accuracy type:\n"
1132 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1133 goto fail;
1134 }
1135
1136 /* Check capabilities */
1137 r = ioctl(fd, HPET_INFO, &info);
1138 if (r < 0)
1139 goto fail;
1140
1141 /* Enable periodic mode */
1142 r = ioctl(fd, HPET_EPI, 0);
1143 if (info.hi_flags && (r < 0))
1144 goto fail;
1145
1146 /* Enable interrupt */
1147 r = ioctl(fd, HPET_IE_ON, 0);
1148 if (r < 0)
1149 goto fail;
1150
1151 enable_sigio_timer(fd);
fcdc2129 1152 t->priv = (void *)(long)fd;
c40ec5a9
TS		 1153
1154 return 0;
1155fail:
1156 close(fd);
1157 return -1;
1158}
1159
1160static void hpet_stop_timer(struct qemu_alarm_timer *t)
1161{
fcdc2129 1162 int fd = (long)t->priv;
c40ec5a9
TS		 1163
1164 close(fd);
1165}
1166
c8994013 1167static int rtc_start_timer(struct qemu_alarm_timer *t)
fd872598 1168{
c8994013 1169 int rtc_fd;
b5a23ad4 1170 unsigned long current_rtc_freq = 0;
c8994013 1171
40ff6d7e 1172 TFR(rtc_fd = qemu_open("/dev/rtc", O_RDONLY));
fd872598
FB		 1173 if (rtc_fd < 0)
1174 return -1;
b5a23ad4
AZ		 1175 ioctl(rtc_fd, RTC_IRQP_READ, &current_rtc_freq);
1176 if (current_rtc_freq != RTC_FREQ &&
1177 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
fd872598
FB		 1178 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1179 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1180 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1181 goto fail;
1182 }
1183 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1184 fail:
1185 close(rtc_fd);
1186 return -1;
1187 }
c8994013
TS		 1188
1189 enable_sigio_timer(rtc_fd);
1190
fcdc2129 1191 t->priv = (void *)(long)rtc_fd;
c8994013 1192
fd872598
FB		 1193 return 0;
1194}
1195
c8994013 1196static void rtc_stop_timer(struct qemu_alarm_timer *t)
829309c7 1197{
fcdc2129 1198 int rtc_fd = (long)t->priv;
c8994013
TS		 1199
1200 close(rtc_fd);
829309c7
FB		 1201}
1202
efe75411
TS		 1203static int dynticks_start_timer(struct qemu_alarm_timer *t)
1204{
1205 struct sigevent ev;
1206 timer_t host_timer;
1207 struct sigaction act;
1208
1209 sigfillset(&act.sa_mask);
1210 act.sa_flags = 0;
efe75411
TS		 1211 act.sa_handler = host_alarm_handler;
1212
1213 sigaction(SIGALRM, &act, NULL);
1214
9ed415b2
JCD		 1215 /*
1216 * Initialize ev struct to 0 to avoid valgrind complaining
1217 * about uninitialized data in timer_create call
1218 */
1219 memset(&ev, 0, sizeof(ev));
efe75411
TS		 1220 ev.sigev_value.sival_int = 0;
1221 ev.sigev_notify = SIGEV_SIGNAL;
1222 ev.sigev_signo = SIGALRM;
1223
1224 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1225 perror("timer_create");
1226
1227 /* disable dynticks */
1228 fprintf(stderr, "Dynamic Ticks disabled\n");
1229
1230 return -1;
1231 }
1232
0399bfe0 1233 t->priv = (void *)(long)host_timer;
efe75411
TS		 1234
1235 return 0;
1236}
1237
1238static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1239{
0399bfe0 1240 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1241
1242 timer_delete(host_timer);
1243}
1244
1245static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1246{
0399bfe0 1247 timer_t host_timer = (timer_t)(long)t->priv;
efe75411
TS		 1248 struct itimerspec timeout;
1249 int64_t nearest_delta_us = INT64_MAX;
1250 int64_t current_us;
1251
0fdddf80 1252 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1253 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1254 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1255 return;
efe75411 1256
2e70f6ef 1257 nearest_delta_us = qemu_next_deadline_dyntick();
efe75411
TS		 1258
1259 /* check whether a timer is already running */
1260 if (timer_gettime(host_timer, &timeout)) {
1261 perror("gettime");
1262 fprintf(stderr, "Internal timer error: aborting\n");
1263 exit(1);
1264 }
1265 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1266 if (current_us && current_us <= nearest_delta_us)
1267 return;
1268
1269 timeout.it_interval.tv_sec = 0;
1270 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1271 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1272 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1273 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1274 perror("settime");
1275 fprintf(stderr, "Internal timer error: aborting\n");
1276 exit(1);
1277 }
1278}
1279
70744b3a 1280#endif /* defined(__linux__) */
231c6586 1281
c8994013
TS		 1282static int unix_start_timer(struct qemu_alarm_timer *t)
1283{
1284 struct sigaction act;
1285 struct itimerval itv;
1286 int err;
1287
1288 /* timer signal */
1289 sigfillset(&act.sa_mask);
1290 act.sa_flags = 0;
c8994013
TS		 1291 act.sa_handler = host_alarm_handler;
1292
1293 sigaction(SIGALRM, &act, NULL);
1294
1295 itv.it_interval.tv_sec = 0;
1296 /* for i386 kernel 2.6 to get 1 ms */
1297 itv.it_interval.tv_usec = 999;
1298 itv.it_value.tv_sec = 0;
1299 itv.it_value.tv_usec = 10 * 1000;
1300
1301 err = setitimer(ITIMER_REAL, &itv, NULL);
1302 if (err)
1303 return -1;
1304
1305 return 0;
1306}
1307
1308static void unix_stop_timer(struct qemu_alarm_timer *t)
1309{
1310 struct itimerval itv;
1311
1312 memset(&itv, 0, sizeof(itv));
1313 setitimer(ITIMER_REAL, &itv, NULL);
1314}
1315
829309c7 1316#endif /* !defined(_WIN32) */
fd872598 1317
f49e58dc 1318
c8994013
TS		 1319#ifdef _WIN32
1320
1321static int win32_start_timer(struct qemu_alarm_timer *t)
1322{
1323 TIMECAPS tc;
1324 struct qemu_alarm_win32 *data = t->priv;
efe75411 1325 UINT flags;
c8994013 1326
c8994013
TS		 1327 memset(&tc, 0, sizeof(tc));
1328 timeGetDevCaps(&tc, sizeof(tc));
1329
1330 if (data->period < tc.wPeriodMin)
1331 data->period = tc.wPeriodMin;
1332
1333 timeBeginPeriod(data->period);
1334
efe75411
TS		 1335 flags = TIME_CALLBACK_FUNCTION;
1336 if (alarm_has_dynticks(t))
1337 flags |= TIME_ONESHOT;
1338 else
1339 flags |= TIME_PERIODIC;
1340
c8994013
TS		 1341 data->timerId = timeSetEvent(1, // interval (ms)
1342 data->period, // resolution
1343 host_alarm_handler, // function
1344 (DWORD)t, // parameter
efe75411 1345 flags);
c8994013
TS		 1346
1347 if (!data->timerId) {
20889d4e 1348 fprintf(stderr, "Failed to initialize win32 alarm timer: %ld\n",
705e83f6 1349 GetLastError());
c8994013 1350 timeEndPeriod(data->period);
c8994013
TS		 1351 return -1;
1352 }
1353
c8994013
TS		 1354 return 0;
1355}
1356
1357static void win32_stop_timer(struct qemu_alarm_timer *t)
1358{
1359 struct qemu_alarm_win32 *data = t->priv;
1360
1361 timeKillEvent(data->timerId);
1362 timeEndPeriod(data->period);
c8994013
TS		 1363}
1364
efe75411
TS		 1365static void win32_rearm_timer(struct qemu_alarm_timer *t)
1366{
1367 struct qemu_alarm_win32 *data = t->priv;
efe75411 1368
0fdddf80 1369 if (!active_timers[QEMU_CLOCK_REALTIME] &&
21d5d12b
JK		 1370 !active_timers[QEMU_CLOCK_VIRTUAL] &&
1371 !active_timers[QEMU_CLOCK_HOST])
d5d08334 1372 return;
efe75411 1373
efe75411
TS		 1374 timeKillEvent(data->timerId);
1375
1376 data->timerId = timeSetEvent(1,
1377 data->period,
1378 host_alarm_handler,
1379 (DWORD)t,
1380 TIME_ONESHOT | TIME_PERIODIC);
1381
1382 if (!data->timerId) {
20889d4e 1383 fprintf(stderr, "Failed to re-arm win32 alarm timer %ld\n",
705e83f6 1384 GetLastError());
efe75411
TS		 1385
1386 timeEndPeriod(data->period);
efe75411
TS		 1387 exit(1);
1388 }
1389}
1390
c8994013
TS		 1391#endif /* _WIN32 */
1392
7183b4b4 1393static int init_timer_alarm(void)
8a7ddc38 1394{
223f0d72 1395 struct qemu_alarm_timer *t = NULL;
c8994013 1396 int i, err = -1;
f49e58dc 1397
c8994013
TS		 1398 for (i = 0; alarm_timers[i].name; i++) {
1399 t = &alarm_timers[i];
1400
c8994013
TS		 1401 err = t->start(t);
1402 if (!err)
1403 break;
67b915a5 1404 }
fd872598 1405
c8994013 1406 if (err) {
7183b4b4
AL		 1407 err = -ENOENT;
1408 goto fail;
67b915a5 1409 }
c8994013
TS		 1410
1411 alarm_timer = t;
7183b4b4 1412
6abfbd79 1413 return 0;
7183b4b4
AL		 1414
1415fail:
7183b4b4 1416 return err;
8a7ddc38
FB		 1417}
1418
9596ebb7 1419static void quit_timers(void)
40c3bac3 1420{
c8994013
TS		 1421 alarm_timer->stop(alarm_timer);
1422 alarm_timer = NULL;
40c3bac3
FB		 1423}
1424
f6503059
AZ		 1425/***********************************************************/
1426/* host time/date access */
1427void qemu_get_timedate(struct tm *tm, int offset)
1428{
1429 time_t ti;
1430 struct tm *ret;
1431
1432 time(&ti);
1433 ti += offset;
1434 if (rtc_date_offset == -1) {
1435 if (rtc_utc)
1436 ret = gmtime(&ti);
1437 else
1438 ret = localtime(&ti);
1439 } else {
1440 ti -= rtc_date_offset;
1441 ret = gmtime(&ti);
1442 }
1443
1444 memcpy(tm, ret, sizeof(struct tm));
1445}
1446
1447int qemu_timedate_diff(struct tm *tm)
1448{
1449 time_t seconds;
1450
1451 if (rtc_date_offset == -1)
1452 if (rtc_utc)
1453 seconds = mktimegm(tm);
1454 else
1455 seconds = mktime(tm);
1456 else
1457 seconds = mktimegm(tm) + rtc_date_offset;
1458
1459 return seconds - time(NULL);
1460}
1461
1ed2fc1f
JK		 1462static void configure_rtc_date_offset(const char *startdate, int legacy)
1463{
1464 time_t rtc_start_date;
1465 struct tm tm;
1466
1467 if (!strcmp(startdate, "now") && legacy) {
1468 rtc_date_offset = -1;
1469 } else {
1470 if (sscanf(startdate, "%d-%d-%dT%d:%d:%d",
1471 &tm.tm_year,
1472 &tm.tm_mon,
1473 &tm.tm_mday,
1474 &tm.tm_hour,
1475 &tm.tm_min,
1476 &tm.tm_sec) == 6) {
1477 /* OK */
1478 } else if (sscanf(startdate, "%d-%d-%d",
1479 &tm.tm_year,
1480 &tm.tm_mon,
1481 &tm.tm_mday) == 3) {
1482 tm.tm_hour = 0;
1483 tm.tm_min = 0;
1484 tm.tm_sec = 0;
1485 } else {
1486 goto date_fail;
1487 }
1488 tm.tm_year -= 1900;
1489 tm.tm_mon--;
1490 rtc_start_date = mktimegm(&tm);
1491 if (rtc_start_date == -1) {
1492 date_fail:
1493 fprintf(stderr, "Invalid date format. Valid formats are:\n"
1494 "'2006-06-17T16:01:21' or '2006-06-17'\n");
1495 exit(1);
1496 }
1497 rtc_date_offset = time(NULL) - rtc_start_date;
1498 }
1499}
1500
1501static void configure_rtc(QemuOpts *opts)
1502{
1503 const char *value;
1504
1505 value = qemu_opt_get(opts, "base");
1506 if (value) {
1507 if (!strcmp(value, "utc")) {
1508 rtc_utc = 1;
1509 } else if (!strcmp(value, "localtime")) {
1510 rtc_utc = 0;
1511 } else {
1512 configure_rtc_date_offset(value, 0);
1513 }
1514 }
6875204c
JK		 1515 value = qemu_opt_get(opts, "clock");
1516 if (value) {
1517 if (!strcmp(value, "host")) {
1518 rtc_clock = host_clock;
1519 } else if (!strcmp(value, "vm")) {
1520 rtc_clock = vm_clock;
1521 } else {
1522 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1523 exit(1);
1524 }
1525 }
1ed2fc1f
JK		 1526#ifdef CONFIG_TARGET_I386
1527 value = qemu_opt_get(opts, "driftfix");
1528 if (value) {
1529 if (!strcmp(buf, "slew")) {
1530 rtc_td_hack = 1;
1531 } else if (!strcmp(buf, "none")) {
1532 rtc_td_hack = 0;
1533 } else {
1534 fprintf(stderr, "qemu: invalid option value '%s'\n", value);
1535 exit(1);
1536 }
1537 }
1538#endif
1539}
1540
fd1dff4b 1541#ifdef _WIN32
fd1dff4b
FB		 1542static void socket_cleanup(void)
1543{
1544 WSACleanup();
1545}
82c643ff 1546
fd1dff4b
FB		 1547static int socket_init(void)
1548{
1549 WSADATA Data;
1550 int ret, err;
1551
1552 ret = WSAStartup(MAKEWORD(2,2), &Data);
1553 if (ret != 0) {
1554 err = WSAGetLastError();
1555 fprintf(stderr, "WSAStartup: %d\n", err);
1556 return -1;
1557 }
1558 atexit(socket_cleanup);
1559 return 0;
1560}
64b7b733
AJ		 1561#endif
1562
1ae26a18
AZ		 1563/***********************************************************/
1564/* Bluetooth support */
1565static int nb_hcis;
1566static int cur_hci;
1567static struct HCIInfo *hci_table[MAX_NICS];
dc72ac14 1568
1ae26a18
AZ		 1569static struct bt_vlan_s {
1570 struct bt_scatternet_s net;
1571 int id;
1572 struct bt_vlan_s *next;
1573} *first_bt_vlan;
1574
1575/* find or alloc a new bluetooth "VLAN" */
674bb261 1576static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1ae26a18
AZ		 1577{
1578 struct bt_vlan_s **pvlan, *vlan;
1579 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1580 if (vlan->id == id)
1581 return &vlan->net;
1582 }
1583 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1584 vlan->id = id;
1585 pvlan = &first_bt_vlan;
1586 while (*pvlan != NULL)
1587 pvlan = &(*pvlan)->next;
1588 *pvlan = vlan;
1589 return &vlan->net;
1590}
1591
1592static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1593{
1594}
1595
1596static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1597{
1598 return -ENOTSUP;
1599}
1600
1601static struct HCIInfo null_hci = {
1602 .cmd_send = null_hci_send,
1603 .sco_send = null_hci_send,
1604 .acl_send = null_hci_send,
1605 .bdaddr_set = null_hci_addr_set,
1606};
1607
1608struct HCIInfo *qemu_next_hci(void)
1609{
1610 if (cur_hci == nb_hcis)
1611 return &null_hci;
1612
1613 return hci_table[cur_hci++];
1614}
1615
dc72ac14
AZ		 1616static struct HCIInfo *hci_init(const char *str)
1617{
1618 char *endp;
1619 struct bt_scatternet_s *vlan = 0;
1620
1621 if (!strcmp(str, "null"))
1622 /* null */
1623 return &null_hci;
1624 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1625 /* host[:hciN] */
1626 return bt_host_hci(str[4] ? str + 5 : "hci0");
1627 else if (!strncmp(str, "hci", 3)) {
1628 /* hci[,vlan=n] */
1629 if (str[3]) {
1630 if (!strncmp(str + 3, ",vlan=", 6)) {
1631 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1632 if (*endp)
1633 vlan = 0;
1634 }
1635 } else
1636 vlan = qemu_find_bt_vlan(0);
1637 if (vlan)
1638 return bt_new_hci(vlan);
1639 }
1640
1641 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1642
1643 return 0;
1644}
1645
1646static int bt_hci_parse(const char *str)
1647{
1648 struct HCIInfo *hci;
c227f099 1649 bdaddr_t bdaddr;
dc72ac14
AZ		 1650
1651 if (nb_hcis >= MAX_NICS) {
1652 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
1653 return -1;
1654 }
1655
1656 hci = hci_init(str);
1657 if (!hci)
1658 return -1;
1659
1660 bdaddr.b[0] = 0x52;
1661 bdaddr.b[1] = 0x54;
1662 bdaddr.b[2] = 0x00;
1663 bdaddr.b[3] = 0x12;
1664 bdaddr.b[4] = 0x34;
1665 bdaddr.b[5] = 0x56 + nb_hcis;
1666 hci->bdaddr_set(hci, bdaddr.b);
1667
1668 hci_table[nb_hcis++] = hci;
1669
1670 return 0;
1671}
1672
1673static void bt_vhci_add(int vlan_id)
1674{
1675 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
1676
1677 if (!vlan->slave)
1678 fprintf(stderr, "qemu: warning: adding a VHCI to "
1679 "an empty scatternet %i\n", vlan_id);
1680
1681 bt_vhci_init(bt_new_hci(vlan));
1682}
1683
1684static struct bt_device_s *bt_device_add(const char *opt)
1685{
1686 struct bt_scatternet_s *vlan;
1687 int vlan_id = 0;
1688 char *endp = strstr(opt, ",vlan=");
1689 int len = (endp ? endp - opt : strlen(opt)) + 1;
1690 char devname[10];
1691
1692 pstrcpy(devname, MIN(sizeof(devname), len), opt);
1693
1694 if (endp) {
1695 vlan_id = strtol(endp + 6, &endp, 0);
1696 if (*endp) {
1697 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
1698 return 0;
1699 }
1700 }
1701
1702 vlan = qemu_find_bt_vlan(vlan_id);
1703
1704 if (!vlan->slave)
1705 fprintf(stderr, "qemu: warning: adding a slave device to "
1706 "an empty scatternet %i\n", vlan_id);
1707
1708 if (!strcmp(devname, "keyboard"))
1709 return bt_keyboard_init(vlan);
1710
1711 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
1712 return 0;
1713}
1714
1715static int bt_parse(const char *opt)
1716{
1717 const char *endp, *p;
1718 int vlan;
1719
1720 if (strstart(opt, "hci", &endp)) {
1721 if (!*endp || *endp == ',') {
1722 if (*endp)
1723 if (!strstart(endp, ",vlan=", 0))
1724 opt = endp + 1;
1725
1726 return bt_hci_parse(opt);
1727 }
1728 } else if (strstart(opt, "vhci", &endp)) {
1729 if (!*endp || *endp == ',') {
1730 if (*endp) {
1731 if (strstart(endp, ",vlan=", &p)) {
1732 vlan = strtol(p, (char **) &endp, 0);
1733 if (*endp) {
1734 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
1735 return 1;
1736 }
1737 } else {
1738 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
1739 return 1;
1740 }
1741 } else
1742 vlan = 0;
1743
1744 bt_vhci_add(vlan);
1745 return 0;
1746 }
1747 } else if (strstart(opt, "device:", &endp))
1748 return !bt_device_add(endp);
1749
1750 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
1751 return 1;
1752}
1753
1ae26a18
AZ		 1754/***********************************************************/
1755/* QEMU Block devices */
1756
609497ab 1757#define HD_ALIAS "index=%d,media=disk"
e4bcb14c 1758#define CDROM_ALIAS "index=2,media=cdrom"
e4bcb14c 1759#define FD_ALIAS "index=%d,if=floppy"
609497ab
AZ		 1760#define PFLASH_ALIAS "if=pflash"
1761#define MTD_ALIAS "if=mtd"
9d413d1d 1762#define SD_ALIAS "index=0,if=sd"
e4bcb14c 1763
9dfd7c7a 1764QemuOpts *drive_add(const char *file, const char *fmt, ...)
e4bcb14c
TS		 1765{
1766 va_list ap;
9dfd7c7a
GH		 1767 char optstr[1024];
1768 QemuOpts *opts;
e4bcb14c 1769
e4bcb14c 1770 va_start(ap, fmt);
9dfd7c7a 1771 vsnprintf(optstr, sizeof(optstr), fmt, ap);
e4bcb14c
TS		 1772 va_end(ap);
1773
7282a033 1774 opts = qemu_opts_parse(&qemu_drive_opts, optstr, NULL);
9dfd7c7a
GH		 1775 if (!opts) {
1776 fprintf(stderr, "%s: huh? duplicate? (%s)\n",
1777 __FUNCTION__, optstr);
1778 return NULL;
1779 }
1780 if (file)
1781 qemu_opt_set(opts, "file", file);
1782 return opts;
b01b1111
AL		 1783}
1784
751c6a17 1785DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit)
e4bcb14c 1786{
751c6a17 1787 DriveInfo *dinfo;
e4bcb14c
TS		 1788
1789 /* seek interface, bus and unit */
1790
72cf2d4f 1791 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1792 if (dinfo->type == type &&
1793 dinfo->bus == bus &&
1794 dinfo->unit == unit)
1795 return dinfo;
1796 }
e4bcb14c 1797
751c6a17 1798 return NULL;
e4bcb14c
TS		 1799}
1800
2e810b36 1801DriveInfo *drive_get_by_id(const char *id)
1dae12e6
GH		 1802{
1803 DriveInfo *dinfo;
1804
72cf2d4f 1805 QTAILQ_FOREACH(dinfo, &drives, next) {
1dae12e6
GH		 1806 if (strcmp(id, dinfo->id))
1807 continue;
1808 return dinfo;
1809 }
1810 return NULL;
1811}
1812
f60d39bc 1813int drive_get_max_bus(BlockInterfaceType type)
e4bcb14c
TS		 1814{
1815 int max_bus;
751c6a17 1816 DriveInfo *dinfo;
e4bcb14c
TS		 1817
1818 max_bus = -1;
72cf2d4f 1819 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1820 if(dinfo->type == type &&
1821 dinfo->bus > max_bus)
1822 max_bus = dinfo->bus;
e4bcb14c
TS		 1823 }
1824 return max_bus;
1825}
1826
fa879c64
AL		 1827const char *drive_get_serial(BlockDriverState *bdrv)
1828{
751c6a17 1829 DriveInfo *dinfo;
fa879c64 1830
72cf2d4f 1831 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17
GH		 1832 if (dinfo->bdrv == bdrv)
1833 return dinfo->serial;
1834 }
fa879c64
AL		 1835
1836 return "\0";
1837}
1838
f7850099
KW		 1839BlockInterfaceErrorAction drive_get_on_error(
1840 BlockDriverState *bdrv, int is_read)
428c5705 1841{
751c6a17 1842 DriveInfo *dinfo;
428c5705 1843
72cf2d4f 1844 QTAILQ_FOREACH(dinfo, &drives, next) {
751c6a17 1845 if (dinfo->bdrv == bdrv)
e9b2e818 1846 return is_read ? dinfo->on_read_error : dinfo->on_write_error;
751c6a17 1847 }
428c5705 1848
e9b2e818 1849 return is_read ? BLOCK_ERR_REPORT : BLOCK_ERR_STOP_ENOSPC;
428c5705
AL		 1850}
1851
a1620fac
AJ		 1852static void bdrv_format_print(void *opaque, const char *name)
1853{
1854 fprintf(stderr, " %s", name);
1855}
1856
56a14938 1857void drive_uninit(DriveInfo *dinfo)
b01b1111 1858{
56a14938
GH		 1859 qemu_opts_del(dinfo->opts);
1860 bdrv_delete(dinfo->bdrv);
1861 QTAILQ_REMOVE(&drives, dinfo, next);
1862 qemu_free(dinfo);
b01b1111
AL		 1863}
1864
e9b2e818
KW		 1865static int parse_block_error_action(const char *buf, int is_read)
1866{
1867 if (!strcmp(buf, "ignore")) {
1868 return BLOCK_ERR_IGNORE;
1869 } else if (!is_read && !strcmp(buf, "enospc")) {
1870 return BLOCK_ERR_STOP_ENOSPC;
1871 } else if (!strcmp(buf, "stop")) {
1872 return BLOCK_ERR_STOP_ANY;
1873 } else if (!strcmp(buf, "report")) {
1874 return BLOCK_ERR_REPORT;
1875 } else {
1876 fprintf(stderr, "qemu: '%s' invalid %s error action\n",
1877 buf, is_read ? "read" : "write");
1878 return -1;
1879 }
1880}
1881
9dfd7c7a 1882DriveInfo *drive_init(QemuOpts *opts, void *opaque,
751c6a17 1883 int *fatal_error)
e4bcb14c 1884{
9dfd7c7a
GH		 1885 const char *buf;
1886 const char *file = NULL;
c8522bdf 1887 char devname[128];
9dfd7c7a 1888 const char *serial;
c8522bdf 1889 const char *mediastr = "";
f60d39bc 1890 BlockInterfaceType type;
e4bcb14c
TS		 1891 enum { MEDIA_DISK, MEDIA_CDROM } media;
1892 int bus_id, unit_id;
1893 int cyls, heads, secs, translation;
1e72d3b7 1894 BlockDriver *drv = NULL;
4d73cd3b 1895 QEMUMachine *machine = opaque;
e4bcb14c
TS		 1896 int max_devs;
1897 int index;
33f00271 1898 int cache;
5c6c3a6c 1899 int aio = 0;
59f2689d 1900 int ro = 0;
e9b2e818
KW		 1901 int bdrv_flags;
1902 int on_read_error, on_write_error;
c2cc47a4 1903 const char *devaddr;
751c6a17 1904 DriveInfo *dinfo;
9dfd7c7a 1905 int snapshot = 0;
e4bcb14c 1906
9dfd7c7a 1907 *fatal_error = 1;
e4bcb14c 1908
e4bcb14c 1909 translation = BIOS_ATA_TRANSLATION_AUTO;
0aa217e4 1910 cache = 1;
e4bcb14c 1911
4d007814 1912 if (machine && machine->use_scsi) {
f60d39bc 1913 type = IF_SCSI;
e4bcb14c 1914 max_devs = MAX_SCSI_DEVS;
363a37d5 1915 pstrcpy(devname, sizeof(devname), "scsi");
e4bcb14c 1916 } else {
f60d39bc 1917 type = IF_IDE;
e4bcb14c 1918 max_devs = MAX_IDE_DEVS;
363a37d5 1919 pstrcpy(devname, sizeof(devname), "ide");
e4bcb14c
TS		 1920 }
1921 media = MEDIA_DISK;
1922
1923 /* extract parameters */
9dfd7c7a
GH		 1924 bus_id = qemu_opt_get_number(opts, "bus", 0);
1925 unit_id = qemu_opt_get_number(opts, "unit", -1);
1926 index = qemu_opt_get_number(opts, "index", -1);
e4bcb14c 1927
9dfd7c7a
GH		 1928 cyls = qemu_opt_get_number(opts, "cyls", 0);
1929 heads = qemu_opt_get_number(opts, "heads", 0);
1930 secs = qemu_opt_get_number(opts, "secs", 0);
e4bcb14c 1931
9dfd7c7a 1932 snapshot = qemu_opt_get_bool(opts, "snapshot", 0);
59f2689d 1933 ro = qemu_opt_get_bool(opts, "readonly", 0);
e4bcb14c 1934
9dfd7c7a
GH		 1935 file = qemu_opt_get(opts, "file");
1936 serial = qemu_opt_get(opts, "serial");
1937
1938 if ((buf = qemu_opt_get(opts, "if")) != NULL) {
ae45d369 1939 pstrcpy(devname, sizeof(devname), buf);
e4bcb14c 1940 if (!strcmp(buf, "ide")) {
f60d39bc 1941 type = IF_IDE;
e4bcb14c
TS		 1942 max_devs = MAX_IDE_DEVS;
1943 } else if (!strcmp(buf, "scsi")) {
f60d39bc 1944 type = IF_SCSI;
e4bcb14c
TS		 1945 max_devs = MAX_SCSI_DEVS;
1946 } else if (!strcmp(buf, "floppy")) {
f60d39bc 1947 type = IF_FLOPPY;
e4bcb14c
TS		 1948 max_devs = 0;
1949 } else if (!strcmp(buf, "pflash")) {
f60d39bc 1950 type = IF_PFLASH;
e4bcb14c
TS		 1951 max_devs = 0;
1952 } else if (!strcmp(buf, "mtd")) {
f60d39bc 1953 type = IF_MTD;
e4bcb14c
TS		 1954 max_devs = 0;
1955 } else if (!strcmp(buf, "sd")) {
f60d39bc 1956 type = IF_SD;
e4bcb14c 1957 max_devs = 0;
6e02c38d
AL		 1958 } else if (!strcmp(buf, "virtio")) {
1959 type = IF_VIRTIO;
1960 max_devs = 0;
62d23efa
AL		 1961 } else if (!strcmp(buf, "xen")) {
1962 type = IF_XEN;
1963 max_devs = 0;
a8659e90
GH		 1964 } else if (!strcmp(buf, "none")) {
1965 type = IF_NONE;
1966 max_devs = 0;
62d23efa 1967 } else {
9dfd7c7a 1968 fprintf(stderr, "qemu: unsupported bus type '%s'\n", buf);
751c6a17 1969 return NULL;
e4bcb14c
TS		 1970 }
1971 }
1972
e4bcb14c 1973 if (cyls || heads || secs) {
5afe3f04 1974 if (cyls < 1 || (type == IF_IDE && cyls > 16383)) {
9dfd7c7a 1975 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", buf);
751c6a17 1976 return NULL;
e4bcb14c 1977 }
5afe3f04 1978 if (heads < 1 || (type == IF_IDE && heads > 16)) {
9dfd7c7a 1979 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", buf);
751c6a17 1980 return NULL;
e4bcb14c 1981 }
5afe3f04 1982 if (secs < 1 || (type == IF_IDE && secs > 63)) {
9dfd7c7a 1983 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", buf);
751c6a17 1984 return NULL;
e4bcb14c
TS		 1985 }
1986 }
1987
9dfd7c7a 1988 if ((buf = qemu_opt_get(opts, "trans")) != NULL) {
e4bcb14c
TS		 1989 if (!cyls) {
1990 fprintf(stderr,
1991 "qemu: '%s' trans must be used with cyls,heads and secs\n",
9dfd7c7a 1992 buf);
751c6a17 1993 return NULL;
e4bcb14c
TS		 1994 }
1995 if (!strcmp(buf, "none"))
1996 translation = BIOS_ATA_TRANSLATION_NONE;
1997 else if (!strcmp(buf, "lba"))
1998 translation = BIOS_ATA_TRANSLATION_LBA;
1999 else if (!strcmp(buf, "auto"))
2000 translation = BIOS_ATA_TRANSLATION_AUTO;
2001 else {
9dfd7c7a 2002 fprintf(stderr, "qemu: '%s' invalid translation type\n", buf);
751c6a17 2003 return NULL;
e4bcb14c
TS		 2004 }
2005 }
2006
9dfd7c7a 2007 if ((buf = qemu_opt_get(opts, "media")) != NULL) {
e4bcb14c
TS		 2008 if (!strcmp(buf, "disk")) {
2009 media = MEDIA_DISK;
2010 } else if (!strcmp(buf, "cdrom")) {
2011 if (cyls || secs || heads) {
2012 fprintf(stderr,
9dfd7c7a 2013 "qemu: '%s' invalid physical CHS format\n", buf);
751c6a17 2014 return NULL;
e4bcb14c
TS		 2015 }
2016 media = MEDIA_CDROM;
2017 } else {
9dfd7c7a 2018 fprintf(stderr, "qemu: '%s' invalid media\n", buf);
751c6a17 2019 return NULL;
e4bcb14c
TS		 2020 }
2021 }
2022
9dfd7c7a 2023 if ((buf = qemu_opt_get(opts, "cache")) != NULL) {
9f7965c7 2024 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
33f00271 2025 cache = 0;
9f7965c7 2026 else if (!strcmp(buf, "writethrough"))
33f00271 2027 cache = 1;
9f7965c7
AL		 2028 else if (!strcmp(buf, "writeback"))
2029 cache = 2;
33f00271
AZ		 2030 else {
2031 fprintf(stderr, "qemu: invalid cache option\n");
751c6a17 2032 return NULL;
33f00271
AZ		 2033 }
2034 }
2035
5c6c3a6c
CH		 2036#ifdef CONFIG_LINUX_AIO
2037 if ((buf = qemu_opt_get(opts, "aio")) != NULL) {
2038 if (!strcmp(buf, "threads"))
2039 aio = 0;
2040 else if (!strcmp(buf, "native"))
2041 aio = 1;
2042 else {
2043 fprintf(stderr, "qemu: invalid aio option\n");
2044 return NULL;
2045 }
2046 }
2047#endif
2048
9dfd7c7a 2049 if ((buf = qemu_opt_get(opts, "format")) != NULL) {
a1620fac
AJ		 2050 if (strcmp(buf, "?") == 0) {
2051 fprintf(stderr, "qemu: Supported formats:");
2052 bdrv_iterate_format(bdrv_format_print, NULL);
2053 fprintf(stderr, "\n");
751c6a17 2054 return NULL;
a1620fac 2055 }
eb852011 2056 drv = bdrv_find_whitelisted_format(buf);
1e72d3b7
AJ		 2057 if (!drv) {
2058 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
751c6a17 2059 return NULL;
1e72d3b7
AJ		 2060 }
2061 }
2062
e9b2e818 2063 on_write_error = BLOCK_ERR_STOP_ENOSPC;
9dfd7c7a 2064 if ((buf = qemu_opt_get(opts, "werror")) != NULL) {
869a5c6d 2065 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
ea8a5d7f 2066 fprintf(stderr, "werror is no supported by this format\n");
751c6a17 2067 return NULL;
428c5705 2068 }
e9b2e818
KW		 2069
2070 on_write_error = parse_block_error_action(buf, 0);
2071 if (on_write_error < 0) {
2072 return NULL;
2073 }
2074 }
2075
2076 on_read_error = BLOCK_ERR_REPORT;
2077 if ((buf = qemu_opt_get(opts, "rerror")) != NULL) {
f35d68f0 2078 if (type != IF_IDE && type != IF_VIRTIO) {
e9b2e818
KW		 2079 fprintf(stderr, "rerror is no supported by this format\n");
2080 return NULL;
2081 }
2082
2083 on_read_error = parse_block_error_action(buf, 1);
2084 if (on_read_error < 0) {
751c6a17 2085 return NULL;
428c5705
AL		 2086 }
2087 }
2088
9dfd7c7a 2089 if ((devaddr = qemu_opt_get(opts, "addr")) != NULL) {
c2cc47a4 2090 if (type != IF_VIRTIO) {
9dfd7c7a 2091 fprintf(stderr, "addr is not supported\n");
751c6a17 2092 return NULL;
c2cc47a4 2093 }
c2cc47a4
MA		 2094 }
2095
e4bcb14c
TS		 2096 /* compute bus and unit according index */
2097
2098 if (index != -1) {
2099 if (bus_id != 0 || unit_id != -1) {
2100 fprintf(stderr,
9dfd7c7a 2101 "qemu: index cannot be used with bus and unit\n");
751c6a17 2102 return NULL;
e4bcb14c
TS		 2103 }
2104 if (max_devs == 0)
2105 {
2106 unit_id = index;
2107 bus_id = 0;
2108 } else {
2109 unit_id = index % max_devs;
2110 bus_id = index / max_devs;
2111 }
2112 }
2113
2114 /* if user doesn't specify a unit_id,
2115 * try to find the first free
2116 */
2117
2118 if (unit_id == -1) {
2119 unit_id = 0;
751c6a17 2120 while (drive_get(type, bus_id, unit_id) != NULL) {
e4bcb14c
TS		 2121 unit_id++;
2122 if (max_devs && unit_id >= max_devs) {
2123 unit_id -= max_devs;
2124 bus_id++;
2125 }
2126 }
2127 }
2128
2129 /* check unit id */
2130
2131 if (max_devs && unit_id >= max_devs) {
9dfd7c7a
GH		 2132 fprintf(stderr, "qemu: unit %d too big (max is %d)\n",
2133 unit_id, max_devs - 1);
751c6a17 2134 return NULL;
e4bcb14c
TS		 2135 }
2136
2137 /*
2138 * ignore multiple definitions
2139 */
2140
751c6a17
GH		 2141 if (drive_get(type, bus_id, unit_id) != NULL) {
2142 *fatal_error = 0;
2143 return NULL;
2144 }
e4bcb14c
TS		 2145
2146 /* init */
2147
751c6a17 2148 dinfo = qemu_mallocz(sizeof(*dinfo));
e23d9c4d 2149 if ((buf = qemu_opts_id(opts)) != NULL) {
9dfd7c7a
GH		 2150 dinfo->id = qemu_strdup(buf);
2151 } else {
1dae12e6 2152 /* no id supplied -> create one */
9dfd7c7a 2153 dinfo->id = qemu_mallocz(32);
1dae12e6
GH		 2154 if (type == IF_IDE || type == IF_SCSI)
2155 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2156 if (max_devs)
9dfd7c7a 2157 snprintf(dinfo->id, 32, "%s%i%s%i",
1dae12e6
GH		 2158 devname, bus_id, mediastr, unit_id);
2159 else
9dfd7c7a 2160 snprintf(dinfo->id, 32, "%s%s%i",
1dae12e6
GH		 2161 devname, mediastr, unit_id);
2162 }
1dae12e6 2163 dinfo->bdrv = bdrv_new(dinfo->id);
751c6a17
GH		 2164 dinfo->devaddr = devaddr;
2165 dinfo->type = type;
2166 dinfo->bus = bus_id;
2167 dinfo->unit = unit_id;
e9b2e818
KW		 2168 dinfo->on_read_error = on_read_error;
2169 dinfo->on_write_error = on_write_error;
9dfd7c7a
GH		 2170 dinfo->opts = opts;
2171 if (serial)
2172 strncpy(dinfo->serial, serial, sizeof(serial));
72cf2d4f 2173 QTAILQ_INSERT_TAIL(&drives, dinfo, next);
e4bcb14c 2174
f60d39bc 2175 switch(type) {
e4bcb14c
TS		 2176 case IF_IDE:
2177 case IF_SCSI:
62d23efa 2178 case IF_XEN:
c219331e 2179 case IF_NONE:
e4bcb14c
TS		 2180 switch(media) {
2181 case MEDIA_DISK:
2182 if (cyls != 0) {
1dae12e6
GH		 2183 bdrv_set_geometry_hint(dinfo->bdrv, cyls, heads, secs);
2184 bdrv_set_translation_hint(dinfo->bdrv, translation);
e4bcb14c
TS		 2185 }
2186 break;
2187 case MEDIA_CDROM:
1dae12e6 2188 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_CDROM);
e4bcb14c
TS		 2189 break;
2190 }
2191 break;
2192 case IF_SD:
2193 /* FIXME: This isn't really a floppy, but it's a reasonable
2194 approximation. */
2195 case IF_FLOPPY:
1dae12e6 2196 bdrv_set_type_hint(dinfo->bdrv, BDRV_TYPE_FLOPPY);
e4bcb14c
TS		 2197 break;
2198 case IF_PFLASH:
2199 case IF_MTD:
2200 break;
d176c495
GH		 2201 case IF_VIRTIO:
2202 /* add virtio block device */
2203 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
2204 qemu_opt_set(opts, "driver", "virtio-blk-pci");
2205 qemu_opt_set(opts, "drive", dinfo->id);
2206 if (devaddr)
2207 qemu_opt_set(opts, "addr", devaddr);
2208 break;
aae9460e
PB		 2209 case IF_COUNT:
2210 abort();
e4bcb14c 2211 }
9dfd7c7a 2212 if (!file) {
751c6a17
GH		 2213 *fatal_error = 0;
2214 return NULL;
2215 }
33f00271 2216 bdrv_flags = 0;
9f7965c7 2217 if (snapshot) {
33f00271 2218 bdrv_flags |= BDRV_O_SNAPSHOT;
9f7965c7
AL		 2219 cache = 2; /* always use write-back with snapshot */
2220 }
2221 if (cache == 0) /* no caching */
2222 bdrv_flags |= BDRV_O_NOCACHE;
2223 else if (cache == 2) /* write-back */
2224 bdrv_flags |= BDRV_O_CACHE_WB;
5c6c3a6c
CH		 2225
2226 if (aio == 1) {
2227 bdrv_flags |= BDRV_O_NATIVE_AIO;
2228 } else {
2229 bdrv_flags &= ~BDRV_O_NATIVE_AIO;
2230 }
2231
59f2689d 2232 if (ro == 1) {
f5edb014
NS		 2233 if (type != IF_SCSI && type != IF_VIRTIO && type != IF_FLOPPY) {
2234 fprintf(stderr, "qemu: readonly flag not supported for drive with this interface\n");
59f2689d
NS		 2235 return NULL;
2236 }
b196b153
NS		 2237 }
2238 /*
2239 * cdrom is read-only. Set it now, after above interface checking
2240 * since readonly attribute not explicitly required, so no error.
2241 */
2242 if (media == MEDIA_CDROM) {
f5edb014 2243 ro = 1;
59f2689d 2244 }
f5edb014 2245 bdrv_flags |= ro ? 0 : BDRV_O_RDWR;
59f2689d 2246
1dae12e6 2247 if (bdrv_open2(dinfo->bdrv, file, bdrv_flags, drv) < 0) {
850810d0
JF		 2248 fprintf(stderr, "qemu: could not open disk image %s: %s\n",
2249 file, strerror(errno));
751c6a17 2250 return NULL;
e4bcb14c 2251 }
5c6c3a6c 2252
1dae12e6 2253 if (bdrv_key_required(dinfo->bdrv))
c0f4ce77 2254 autostart = 0;
751c6a17
GH		 2255 *fatal_error = 0;
2256 return dinfo;
e4bcb14c
TS		 2257}
2258
9dfd7c7a
GH		 2259static int drive_init_func(QemuOpts *opts, void *opaque)
2260{
2261 QEMUMachine *machine = opaque;
2262 int fatal_error = 0;
2263
2264 if (drive_init(opts, machine, &fatal_error) == NULL) {
2265 if (fatal_error)
2266 return 1;
2267 }
2268 return 0;
2269}
2270
2271static int drive_enable_snapshot(QemuOpts *opts, void *opaque)
2272{
2273 if (NULL == qemu_opt_get(opts, "snapshot")) {
2274 qemu_opt_set(opts, "snapshot", "on");
2275 }
2276 return 0;
2277}
2278
76e30d0f
JK		 2279void qemu_register_boot_set(QEMUBootSetHandler *func, void *opaque)
2280{
2281 boot_set_handler = func;
2282 boot_set_opaque = opaque;
2283}
2284
2285int qemu_boot_set(const char *boot_devices)
2286{
2287 if (!boot_set_handler) {
2288 return -EINVAL;
2289 }
2290 return boot_set_handler(boot_set_opaque, boot_devices);
2291}
2292
ef3adf68
JK		 2293static int parse_bootdevices(char *devices)
2294{
2295 /* We just do some generic consistency checks */
2296 const char *p;
2297 int bitmap = 0;
2298
2299 for (p = devices; *p != '\0'; p++) {
2300 /* Allowed boot devices are:
2301 * a-b: floppy disk drives
2302 * c-f: IDE disk drives
2303 * g-m: machine implementation dependant drives
2304 * n-p: network devices
2305 * It's up to each machine implementation to check if the given boot
2306 * devices match the actual hardware implementation and firmware
2307 * features.
2308 */
2309 if (*p < 'a' || *p > 'p') {
2310 fprintf(stderr, "Invalid boot device '%c'\n", *p);
2311 exit(1);
2312 }
2313 if (bitmap & (1 << (*p - 'a'))) {
2314 fprintf(stderr, "Boot device '%c' was given twice\n", *p);
2315 exit(1);
2316 }
2317 bitmap |= 1 << (*p - 'a');
2318 }
2319 return bitmap;
2320}
2321
e0f084bf
JK		 2322static void restore_boot_devices(void *opaque)
2323{
2324 char *standard_boot_devices = opaque;
2325
2326 qemu_boot_set(standard_boot_devices);
2327
2328 qemu_unregister_reset(restore_boot_devices, standard_boot_devices);
2329 qemu_free(standard_boot_devices);
2330}
2331
268a362c
AL		 2332static void numa_add(const char *optarg)
2333{
2334 char option[128];
2335 char *endptr;
2336 unsigned long long value, endvalue;
2337 int nodenr;
2338
2339 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2340 if (!strcmp(option, "node")) {
2341 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2342 nodenr = nb_numa_nodes;
2343 } else {
2344 nodenr = strtoull(option, NULL, 10);
2345 }
2346
2347 if (get_param_value(option, 128, "mem", optarg) == 0) {
2348 node_mem[nodenr] = 0;
2349 } else {
2350 value = strtoull(option, &endptr, 0);
2351 switch (*endptr) {
2352 case 0: case 'M': case 'm':
2353 value <<= 20;
2354 break;
2355 case 'G': case 'g':
2356 value <<= 30;
2357 break;
2358 }
2359 node_mem[nodenr] = value;
2360 }
2361 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2362 node_cpumask[nodenr] = 0;
2363 } else {
2364 value = strtoull(option, &endptr, 10);
2365 if (value >= 64) {
2366 value = 63;
2367 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2368 } else {
2369 if (*endptr == '-') {
2370 endvalue = strtoull(endptr+1, &endptr, 10);
2371 if (endvalue >= 63) {
2372 endvalue = 62;
2373 fprintf(stderr,
2374 "only 63 CPUs in NUMA mode supported.\n");
2375 }
2376 value = (1 << (endvalue + 1)) - (1 << value);
2377 } else {
2378 value = 1 << value;
2379 }
2380 }
2381 node_cpumask[nodenr] = value;
2382 }
2383 nb_numa_nodes++;
2384 }
2385 return;
2386}
2387
dc6b1c09
AP		 2388static void smp_parse(const char *optarg)
2389{
2390 int smp, sockets = 0, threads = 0, cores = 0;
2391 char *endptr;
2392 char option[128];
2393
2394 smp = strtoul(optarg, &endptr, 10);
2395 if (endptr != optarg) {
2396 if (*endptr == ',') {
2397 endptr++;
2398 }
2399 }
2400 if (get_param_value(option, 128, "sockets", endptr) != 0)
2401 sockets = strtoull(option, NULL, 10);
2402 if (get_param_value(option, 128, "cores", endptr) != 0)
2403 cores = strtoull(option, NULL, 10);
2404 if (get_param_value(option, 128, "threads", endptr) != 0)
2405 threads = strtoull(option, NULL, 10);
2406 if (get_param_value(option, 128, "maxcpus", endptr) != 0)
2407 max_cpus = strtoull(option, NULL, 10);
2408
2409 /* compute missing values, prefer sockets over cores over threads */
2410 if (smp == 0 || sockets == 0) {
2411 sockets = sockets > 0 ? sockets : 1;
2412 cores = cores > 0 ? cores : 1;
2413 threads = threads > 0 ? threads : 1;
2414 if (smp == 0) {
2415 smp = cores * threads * sockets;
dc6b1c09
AP		 2416 }
2417 } else {
2418 if (cores == 0) {
2419 threads = threads > 0 ? threads : 1;
2420 cores = smp / (sockets * threads);
2421 } else {
5cdc9b76 2422 if (sockets) {
dc6b1c09
AP		 2423 threads = smp / (cores * sockets);
2424 }
2425 }
2426 }
2427 smp_cpus = smp;
2428 smp_cores = cores > 0 ? cores : 1;
2429 smp_threads = threads > 0 ? threads : 1;
2430 if (max_cpus == 0)
2431 max_cpus = smp_cpus;
2432}
2433
a594cfbf
FB		 2434/***********************************************************/
2435/* USB devices */
2436
c0f4ce77 2437static int usb_device_add(const char *devname, int is_hotplug)
a594cfbf
FB		 2438{
2439 const char *p;
a5d2f727 2440 USBDevice *dev = NULL;
a594cfbf 2441
a5d2f727 2442 if (!usb_enabled)
a594cfbf
FB		 2443 return -1;
2444
0958b4cc
GH		 2445 /* drivers with .usbdevice_name entry in USBDeviceInfo */
2446 dev = usbdevice_create(devname);
2447 if (dev)
2448 goto done;
2449
a5d2f727 2450 /* the other ones */
a594cfbf
FB		 2451 if (strstart(devname, "host:", &p)) {
2452 dev = usb_host_device_open(p);
dc72ac14
AZ		 2453 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2454 dev = usb_bt_init(devname[2] ? hci_init(p) :
2455 bt_new_hci(qemu_find_bt_vlan(0)));
a594cfbf
FB		 2456 } else {
2457 return -1;
2458 }
0d92ed30
PB		 2459 if (!dev)
2460 return -1;
2461
a5d2f727 2462done:
a594cfbf
FB		 2463 return 0;
2464}
2465
1f3870ab
AL		 2466static int usb_device_del(const char *devname)
2467{
2468 int bus_num, addr;
2469 const char *p;
2470
5d0c5750
AL		 2471 if (strstart(devname, "host:", &p))
2472 return usb_host_device_close(p);
2473
a5d2f727 2474 if (!usb_enabled)
1f3870ab
AL		 2475 return -1;
2476
2477 p = strchr(devname, '.');
2478 if (!p)
2479 return -1;
2480 bus_num = strtoul(devname, NULL, 0);
2481 addr = strtoul(p + 1, NULL, 0);
2482
a5d2f727 2483 return usb_device_delete_addr(bus_num, addr);
1f3870ab
AL		 2484}
2485
bd3c948d
GH		 2486static int usb_parse(const char *cmdline)
2487{
59d1c1c2
ST		 2488 int r;
2489 r = usb_device_add(cmdline, 0);
2490 if (r < 0) {
2491 fprintf(stderr, "qemu: could not add USB device '%s'\n", cmdline);
2492 }
2493 return r;
bd3c948d
GH		 2494}
2495
d54908a5 2496void do_usb_add(Monitor *mon, const QDict *qdict)
a594cfbf 2497{
59d1c1c2
ST		 2498 const char *devname = qdict_get_str(qdict, "devname");
2499 if (usb_device_add(devname, 1) < 0) {
2500 qemu_error("could not add USB device '%s'\n", devname);
2501 }
a594cfbf
FB		 2502}
2503
d54908a5 2504void do_usb_del(Monitor *mon, const QDict *qdict)
a594cfbf 2505{
59d1c1c2
ST		 2506 const char *devname = qdict_get_str(qdict, "devname");
2507 if (usb_device_del(devname) < 0) {
2508 qemu_error("could not delete USB device '%s'\n", devname);
2509 }
a594cfbf
FB		 2510}
2511
201a51fc
AZ		 2512/***********************************************************/
2513/* PCMCIA/Cardbus */
2514
2515static struct pcmcia_socket_entry_s {
bc24a225 2516 PCMCIASocket *socket;
201a51fc
AZ		 2517 struct pcmcia_socket_entry_s *next;
2518} *pcmcia_sockets = 0;
2519
bc24a225 2520void pcmcia_socket_register(PCMCIASocket *socket)
201a51fc
AZ		 2521{
2522 struct pcmcia_socket_entry_s *entry;
2523
2524 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2525 entry->socket = socket;
2526 entry->next = pcmcia_sockets;
2527 pcmcia_sockets = entry;
2528}
2529
bc24a225 2530void pcmcia_socket_unregister(PCMCIASocket *socket)
201a51fc
AZ		 2531{
2532 struct pcmcia_socket_entry_s *entry, **ptr;
2533
2534 ptr = &pcmcia_sockets;
2535 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2536 if (entry->socket == socket) {
2537 *ptr = entry->next;
2538 qemu_free(entry);
2539 }
2540}
2541
376253ec 2542void pcmcia_info(Monitor *mon)
201a51fc
AZ		 2543{
2544 struct pcmcia_socket_entry_s *iter;
376253ec 2545
201a51fc 2546 if (!pcmcia_sockets)
376253ec 2547 monitor_printf(mon, "No PCMCIA sockets\n");
201a51fc
AZ		 2548
2549 for (iter = pcmcia_sockets; iter; iter = iter->next)
376253ec
AL		 2550 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2551 iter->socket->attached ? iter->socket->card_string :
2552 "Empty");
201a51fc
AZ		 2553}
2554
2ff89790 2555/***********************************************************/
3023f332
AL		 2556/* register display */
2557
7b5d76da
AL		 2558struct DisplayAllocator default_allocator = {
2559 defaultallocator_create_displaysurface,
2560 defaultallocator_resize_displaysurface,
2561 defaultallocator_free_displaysurface
2562};
2563
3023f332
AL		 2564void register_displaystate(DisplayState *ds)
2565{
2566 DisplayState **s;
2567 s = &display_state;
2568 while (*s != NULL)
2569 s = &(*s)->next;
2570 ds->next = NULL;
2571 *s = ds;
2572}
2573
2574DisplayState *get_displaystate(void)
2575{
2576 return display_state;
2577}
2578
7b5d76da
AL		 2579DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2580{
2581 if(ds->allocator == &default_allocator) ds->allocator = da;
2582 return ds->allocator;
2583}
2584
2ff89790
TS		 2585/* dumb display */
2586
8f391ab4 2587static void dumb_display_init(void)
2ff89790 2588{
8f391ab4 2589 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
7b5d76da
AL		 2590 ds->allocator = &default_allocator;
2591 ds->surface = qemu_create_displaysurface(ds, 640, 480);
8f391ab4 2592 register_displaystate(ds);
2ff89790
TS		 2593}
2594
8a7ddc38
FB		 2595/***********************************************************/
2596/* I/O handling */
0824d6fc 2597
c4b1fcc0
FB		 2598typedef struct IOHandlerRecord {
2599 int fd;
7c9d8e07
FB		 2600 IOCanRWHandler *fd_read_poll;
2601 IOHandler *fd_read;
2602 IOHandler *fd_write;
cafffd40 2603 int deleted;
c4b1fcc0
FB		 2604 void *opaque;
2605 /* temporary data */
2606 struct pollfd *ufd;
8a7ddc38 2607 struct IOHandlerRecord *next;
c4b1fcc0
FB		 2608} IOHandlerRecord;
2609
8a7ddc38 2610static IOHandlerRecord *first_io_handler;
c4b1fcc0 2611
7c9d8e07
FB		 2612/* XXX: fd_read_poll should be suppressed, but an API change is
2613 necessary in the character devices to suppress fd_can_read(). */
5fafdf24
TS		 2614int qemu_set_fd_handler2(int fd,
2615 IOCanRWHandler *fd_read_poll,
2616 IOHandler *fd_read,
2617 IOHandler *fd_write,
7c9d8e07 2618 void *opaque)
c4b1fcc0 2619{
7c9d8e07 2620 IOHandlerRecord **pioh, *ioh;
c4b1fcc0 2621
7c9d8e07
FB		 2622 if (!fd_read && !fd_write) {
2623 pioh = &first_io_handler;
2624 for(;;) {
2625 ioh = *pioh;
2626 if (ioh == NULL)
2627 break;
2628 if (ioh->fd == fd) {
cafffd40 2629 ioh->deleted = 1;
7c9d8e07
FB		 2630 break;
2631 }
2632 pioh = &ioh->next;
2633 }
2634 } else {
2635 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2636 if (ioh->fd == fd)
2637 goto found;
2638 }
2639 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
7c9d8e07
FB		 2640 ioh->next = first_io_handler;
2641 first_io_handler = ioh;
2642 found:
2643 ioh->fd = fd;
2644 ioh->fd_read_poll = fd_read_poll;
2645 ioh->fd_read = fd_read;
2646 ioh->fd_write = fd_write;
2647 ioh->opaque = opaque;
cafffd40 2648 ioh->deleted = 0;
7c9d8e07 2649 }
c4b1fcc0
FB		 2650 return 0;
2651}
2652
5fafdf24
TS		 2653int qemu_set_fd_handler(int fd,
2654 IOHandler *fd_read,
2655 IOHandler *fd_write,
7c9d8e07 2656 void *opaque)
8a7ddc38 2657{
7c9d8e07 2658 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
8a7ddc38
FB		 2659}
2660
56f3a5d0 2661#ifdef _WIN32
f331110f
FB		 2662/***********************************************************/
2663/* Polling handling */
2664
2665typedef struct PollingEntry {
2666 PollingFunc *func;
2667 void *opaque;
2668 struct PollingEntry *next;
2669} PollingEntry;
2670
2671static PollingEntry *first_polling_entry;
2672
2673int qemu_add_polling_cb(PollingFunc *func, void *opaque)
2674{
2675 PollingEntry **ppe, *pe;
2676 pe = qemu_mallocz(sizeof(PollingEntry));
f331110f
FB		 2677 pe->func = func;
2678 pe->opaque = opaque;
2679 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
2680 *ppe = pe;
2681 return 0;
2682}
2683
2684void qemu_del_polling_cb(PollingFunc *func, void *opaque)
2685{
2686 PollingEntry **ppe, *pe;
2687 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
2688 pe = *ppe;
2689 if (pe->func == func && pe->opaque == opaque) {
2690 *ppe = pe->next;
2691 qemu_free(pe);
2692 break;
2693 }
2694 }
2695}
2696
a18e524a
FB		 2697/***********************************************************/
2698/* Wait objects support */
2699typedef struct WaitObjects {
2700 int num;
2701 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
2702 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
2703 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
2704} WaitObjects;
2705
2706static WaitObjects wait_objects = {0};
3b46e624 2707
a18e524a
FB		 2708int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2709{
2710 WaitObjects *w = &wait_objects;
2711
2712 if (w->num >= MAXIMUM_WAIT_OBJECTS)
2713 return -1;
2714 w->events[w->num] = handle;
2715 w->func[w->num] = func;
2716 w->opaque[w->num] = opaque;
2717 w->num++;
2718 return 0;
2719}
2720
2721void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
2722{
2723 int i, found;
2724 WaitObjects *w = &wait_objects;
2725
2726 found = 0;
2727 for (i = 0; i < w->num; i++) {
2728 if (w->events[i] == handle)
2729 found = 1;
2730 if (found) {
2731 w->events[i] = w->events[i + 1];
2732 w->func[i] = w->func[i + 1];
2733 w->opaque[i] = w->opaque[i + 1];
3b46e624 2734 }
a18e524a
FB		 2735 }
2736 if (found)
2737 w->num--;
2738}
2739#endif
2740
8a7ddc38
FB		 2741/***********************************************************/
2742/* ram save/restore */
2743
94fb0909 2744#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
475e4277
AL		 2745#define RAM_SAVE_FLAG_COMPRESS 0x02
2746#define RAM_SAVE_FLAG_MEM_SIZE 0x04
2747#define RAM_SAVE_FLAG_PAGE 0x08
2748#define RAM_SAVE_FLAG_EOS 0x10
2749
2750static int is_dup_page(uint8_t *page, uint8_t ch)
8a7ddc38 2751{
475e4277
AL		 2752 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
2753 uint32_t *array = (uint32_t *)page;
2754 int i;
3b46e624 2755
475e4277
AL		 2756 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
2757 if (array[i] != val)
2758 return 0;
2759 }
2760
2761 return 1;
2762}
2763
2764static int ram_save_block(QEMUFile *f)
2765{
c227f099
AL		 2766 static ram_addr_t current_addr = 0;
2767 ram_addr_t saved_addr = current_addr;
2768 ram_addr_t addr = 0;
475e4277
AL		 2769 int found = 0;
2770
94a6b54f 2771 while (addr < last_ram_offset) {
475e4277 2772 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
5579c7f3 2773 uint8_t *p;
475e4277
AL		 2774
2775 cpu_physical_memory_reset_dirty(current_addr,
2776 current_addr + TARGET_PAGE_SIZE,
2777 MIGRATION_DIRTY_FLAG);
2778
5579c7f3 2779 p = qemu_get_ram_ptr(current_addr);
475e4277 2780
5579c7f3 2781 if (is_dup_page(p, *p)) {
475e4277 2782 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
5579c7f3 2783 qemu_put_byte(f, *p);
475e4277
AL		 2784 } else {
2785 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
5579c7f3 2786 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
c88676f8 2787 }
475e4277
AL		 2788
2789 found = 1;
2790 break;
c88676f8 2791 }
475e4277 2792 addr += TARGET_PAGE_SIZE;
94a6b54f 2793 current_addr = (saved_addr + addr) % last_ram_offset;
8a7ddc38 2794 }
475e4277
AL		 2795
2796 return found;
8a7ddc38
FB		 2797}
2798
84307938 2799static uint64_t bytes_transferred;
475e4277 2800
c227f099 2801static ram_addr_t ram_save_remaining(void)
475e4277 2802{
c227f099
AL		 2803 ram_addr_t addr;
2804 ram_addr_t count = 0;
475e4277 2805
94a6b54f 2806 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2807 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2808 count++;
2809 }
2810
2811 return count;
2812}
2813
9f9e28cd
GC		 2814uint64_t ram_bytes_remaining(void)
2815{
2816 return ram_save_remaining() * TARGET_PAGE_SIZE;
2817}
2818
2819uint64_t ram_bytes_transferred(void)
2820{
2821 return bytes_transferred;
2822}
2823
2824uint64_t ram_bytes_total(void)
2825{
2826 return last_ram_offset;
2827}
2828
f327aa0c 2829static int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
475e4277 2830{
c227f099 2831 ram_addr_t addr;
a0a3fd60
GC		 2832 uint64_t bytes_transferred_last;
2833 double bwidth = 0;
2834 uint64_t expected_time = 0;
475e4277 2835
4ec7fcc7
JK		 2836 if (stage < 0) {
2837 cpu_physical_memory_set_dirty_tracking(0);
2838 return 0;
2839 }
2840
9fa06385 2841 if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
b0a46a33
JK		 2842 qemu_file_set_error(f);
2843 return 0;
2844 }
2845
475e4277 2846 if (stage == 1) {
84307938
JK		 2847 bytes_transferred = 0;
2848
475e4277 2849 /* Make sure all dirty bits are set */
94a6b54f 2850 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
475e4277
AL		 2851 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
2852 cpu_physical_memory_set_dirty(addr);
2853 }
b0a46a33 2854
475e4277
AL		 2855 /* Enable dirty memory tracking */
2856 cpu_physical_memory_set_dirty_tracking(1);
2857
94a6b54f 2858 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
475e4277
AL		 2859 }
2860
a0a3fd60
GC		 2861 bytes_transferred_last = bytes_transferred;
2862 bwidth = get_clock();
2863
475e4277
AL		 2864 while (!qemu_file_rate_limit(f)) {
2865 int ret;
2866
2867 ret = ram_save_block(f);
9f9e28cd 2868 bytes_transferred += ret * TARGET_PAGE_SIZE;
475e4277
AL		 2869 if (ret == 0) /* no more blocks */
2870 break;
2871 }
2872
a0a3fd60
GC		 2873 bwidth = get_clock() - bwidth;
2874 bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
2875
2876 /* if we haven't transferred anything this round, force expected_time to a
2877 * a very high value, but without crashing */
2878 if (bwidth == 0)
2879 bwidth = 0.000001;
2880
475e4277 2881 /* try transferring iterative blocks of memory */
475e4277 2882 if (stage == 3) {
475e4277 2883 /* flush all remaining blocks regardless of rate limiting */
9f9e28cd
GC		 2884 while (ram_save_block(f) != 0) {
2885 bytes_transferred += TARGET_PAGE_SIZE;
2886 }
8215e914 2887 cpu_physical_memory_set_dirty_tracking(0);
475e4277
AL		 2888 }
2889
2890 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
2891
a0a3fd60
GC		 2892 expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
2893
2894 return (stage == 2) && (expected_time <= migrate_max_downtime());
475e4277
AL		 2895}
2896
475e4277
AL		 2897static int ram_load(QEMUFile *f, void *opaque, int version_id)
2898{
c227f099 2899 ram_addr_t addr;
475e4277
AL		 2900 int flags;
2901
475e4277
AL		 2902 if (version_id != 3)
2903 return -EINVAL;
2904
2905 do {
2906 addr = qemu_get_be64(f);
2907
2908 flags = addr & ~TARGET_PAGE_MASK;
2909 addr &= TARGET_PAGE_MASK;
2910
2911 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
94a6b54f 2912 if (addr != last_ram_offset)
475e4277
AL		 2913 return -EINVAL;
2914 }
2915
475e4277
AL		 2916 if (flags & RAM_SAVE_FLAG_COMPRESS) {
2917 uint8_t ch = qemu_get_byte(f);
779c6bef
AL		 2918 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
2919#ifndef _WIN32
30868442
AL		 2920 if (ch == 0 &&
2921 (!kvm_enabled() || kvm_has_sync_mmu())) {
2922 madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED);
779c6bef 2923 }
30868442 2924#endif
9a743e5b 2925 } else if (flags & RAM_SAVE_FLAG_PAGE) {
5579c7f3 2926 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
9a743e5b
JK		 2927 }
2928 if (qemu_file_has_error(f)) {
2929 return -EIO;
2930 }
475e4277
AL		 2931 } while (!(flags & RAM_SAVE_FLAG_EOS));
2932
8a7ddc38
FB		 2933 return 0;
2934}
2935
9e472e10
AL		 2936void qemu_service_io(void)
2937{
d9f75a4e 2938 qemu_notify_event();
9e472e10
AL		 2939}
2940
cc1daa40
FB		 2941/***********************************************************/
2942/* machine registration */
2943
bdaf78e0 2944static QEMUMachine *first_machine = NULL;
6f338c34 2945QEMUMachine *current_machine = NULL;
cc1daa40
FB		 2946
2947int qemu_register_machine(QEMUMachine *m)
2948{
2949 QEMUMachine **pm;
2950 pm = &first_machine;
2951 while (*pm != NULL)
2952 pm = &(*pm)->next;
2953 m->next = NULL;
2954 *pm = m;
2955 return 0;
2956}
2957
9596ebb7 2958static QEMUMachine *find_machine(const char *name)
cc1daa40
FB		 2959{
2960 QEMUMachine *m;
2961
2962 for(m = first_machine; m != NULL; m = m->next) {
2963 if (!strcmp(m->name, name))
2964 return m;
3f6599e6
MM		 2965 if (m->alias && !strcmp(m->alias, name))
2966 return m;
cc1daa40
FB		 2967 }
2968 return NULL;
2969}
2970
0c257437
AL		 2971static QEMUMachine *find_default_machine(void)
2972{
2973 QEMUMachine *m;
2974
2975 for(m = first_machine; m != NULL; m = m->next) {
2976 if (m->is_default) {
2977 return m;
2978 }
2979 }
2980 return NULL;
2981}
2982
8a7ddc38
FB		 2983/***********************************************************/
2984/* main execution loop */
2985
9596ebb7 2986static void gui_update(void *opaque)
8a7ddc38 2987{
7d957bd8 2988 uint64_t interval = GUI_REFRESH_INTERVAL;
740733bb 2989 DisplayState *ds = opaque;
7d957bd8
AL		 2990 DisplayChangeListener *dcl = ds->listeners;
2991
2992 dpy_refresh(ds);
2993
2994 while (dcl != NULL) {
2995 if (dcl->gui_timer_interval &&
2996 dcl->gui_timer_interval < interval)
2997 interval = dcl->gui_timer_interval;
2998 dcl = dcl->next;
2999 }
3000 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
8a7ddc38
FB		 3001}
3002
9043b62d
BS		 3003static void nographic_update(void *opaque)
3004{
3005 uint64_t interval = GUI_REFRESH_INTERVAL;
3006
3007 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3008}
3009
0bd48850
FB		 3010struct vm_change_state_entry {
3011 VMChangeStateHandler *cb;
3012 void *opaque;
72cf2d4f 3013 QLIST_ENTRY (vm_change_state_entry) entries;
0bd48850
FB		 3014};
3015
72cf2d4f 3016static QLIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
0bd48850
FB		 3017
3018VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3019 void *opaque)
3020{
3021 VMChangeStateEntry *e;
3022
3023 e = qemu_mallocz(sizeof (*e));
0bd48850
FB		 3024
3025 e->cb = cb;
3026 e->opaque = opaque;
72cf2d4f 3027 QLIST_INSERT_HEAD(&vm_change_state_head, e, entries);
0bd48850
FB		 3028 return e;
3029}
3030
3031void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3032{
72cf2d4f 3033 QLIST_REMOVE (e, entries);
0bd48850
FB		 3034 qemu_free (e);
3035}
3036
9781e040 3037static void vm_state_notify(int running, int reason)
0bd48850
FB		 3038{
3039 VMChangeStateEntry *e;
3040
3041 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
9781e040 3042 e->cb(e->opaque, running, reason);
0bd48850
FB		 3043 }
3044}
3045
d6dc3d42
AL		 3046static void resume_all_vcpus(void);
3047static void pause_all_vcpus(void);
3048
8a7ddc38
FB		 3049void vm_start(void)
3050{
3051 if (!vm_running) {
3052 cpu_enable_ticks();
3053 vm_running = 1;
9781e040 3054 vm_state_notify(1, 0);
efe75411 3055 qemu_rearm_alarm_timer(alarm_timer);
d6dc3d42 3056 resume_all_vcpus();
8a7ddc38
FB		 3057 }
3058}
3059
bb0c6722
FB		 3060/* reset/shutdown handler */
3061
3062typedef struct QEMUResetEntry {
72cf2d4f 3063 QTAILQ_ENTRY(QEMUResetEntry) entry;
bb0c6722
FB		 3064 QEMUResetHandler *func;
3065 void *opaque;
bb0c6722
FB		 3066} QEMUResetEntry;
3067
72cf2d4f
BS		 3068static QTAILQ_HEAD(reset_handlers, QEMUResetEntry) reset_handlers =
3069 QTAILQ_HEAD_INITIALIZER(reset_handlers);
bb0c6722
FB		 3070static int reset_requested;
3071static int shutdown_requested;
3475187d 3072static int powerdown_requested;
e568902a 3073static int debug_requested;
6e29f5da 3074static int vmstop_requested;
bb0c6722 3075
cf7a2fe2
AJ		 3076int qemu_shutdown_requested(void)
3077{
3078 int r = shutdown_requested;
3079 shutdown_requested = 0;
3080 return r;
3081}
3082
3083int qemu_reset_requested(void)
3084{
3085 int r = reset_requested;
3086 reset_requested = 0;
3087 return r;
3088}
3089
3090int qemu_powerdown_requested(void)
3091{
3092 int r = powerdown_requested;
3093 powerdown_requested = 0;
3094 return r;
3095}
3096
e568902a
AL		 3097static int qemu_debug_requested(void)
3098{
3099 int r = debug_requested;
3100 debug_requested = 0;
3101 return r;
3102}
3103
6e29f5da
AL		 3104static int qemu_vmstop_requested(void)
3105{
3106 int r = vmstop_requested;
3107 vmstop_requested = 0;
3108 return r;
3109}
3110
3111static void do_vm_stop(int reason)
3112{
3113 if (vm_running) {
3114 cpu_disable_ticks();
3115 vm_running = 0;
d6dc3d42 3116 pause_all_vcpus();
6e29f5da
AL		 3117 vm_state_notify(0, reason);
3118 }
3119}
3120
a08d4367 3121void qemu_register_reset(QEMUResetHandler *func, void *opaque)
bb0c6722 3122{
55ddfe8e 3123 QEMUResetEntry *re = qemu_mallocz(sizeof(QEMUResetEntry));
bb0c6722 3124
bb0c6722
FB		 3125 re->func = func;
3126 re->opaque = opaque;
72cf2d4f 3127 QTAILQ_INSERT_TAIL(&reset_handlers, re, entry);
bb0c6722
FB		 3128}
3129
dda9b29f 3130void qemu_unregister_reset(QEMUResetHandler *func, void *opaque)
bb0c6722
FB		 3131{
3132 QEMUResetEntry *re;
3133
72cf2d4f 3134 QTAILQ_FOREACH(re, &reset_handlers, entry) {
dda9b29f 3135 if (re->func == func && re->opaque == opaque) {
72cf2d4f 3136 QTAILQ_REMOVE(&reset_handlers, re, entry);
dda9b29f
JK		 3137 qemu_free(re);
3138 return;
3139 }
3140 }
3141}
3142
3143void qemu_system_reset(void)
3144{
3145 QEMUResetEntry *re, *nre;
3146
3147 /* reset all devices */
72cf2d4f 3148 QTAILQ_FOREACH_SAFE(re, &reset_handlers, entry, nre) {
bb0c6722
FB		 3149 re->func(re->opaque);
3150 }
3151}
3152
3153void qemu_system_reset_request(void)
3154{
d1beab82
FB		 3155 if (no_reboot) {
3156 shutdown_requested = 1;
3157 } else {
3158 reset_requested = 1;
3159 }
d9f75a4e 3160 qemu_notify_event();
bb0c6722
FB		 3161}
3162
3163void qemu_system_shutdown_request(void)
3164{
3165 shutdown_requested = 1;
d9f75a4e 3166 qemu_notify_event();
bb0c6722
FB		 3167}
3168
3475187d
FB		 3169void qemu_system_powerdown_request(void)
3170{
3171 powerdown_requested = 1;
d9f75a4e
AL		 3172 qemu_notify_event();
3173}
3174
d6dc3d42
AL		 3175#ifdef CONFIG_IOTHREAD
3176static void qemu_system_vmstop_request(int reason)
d9f75a4e 3177{
d6dc3d42
AL		 3178 vmstop_requested = reason;
3179 qemu_notify_event();
bb0c6722 3180}
d6dc3d42 3181#endif
bb0c6722 3182
50317c7f
AL		 3183#ifndef _WIN32
3184static int io_thread_fd = -1;
3185
3186static void qemu_event_increment(void)
3fcf7b6b 3187{
50317c7f 3188 static const char byte = 0;
dc330e28 3189 ssize_t ret;
50317c7f
AL		 3190
3191 if (io_thread_fd == -1)
3192 return;
3193
dc330e28
KS		 3194 ret = write(io_thread_fd, &byte, sizeof(byte));
3195 if (ret < 0 && (errno != EINTR && errno != EAGAIN)) {
3196 fprintf(stderr, "qemu_event_increment: write() filed: %s\n",
3197 strerror(errno));
3198 exit (1);
3199 }
50317c7f
AL		 3200}
3201
3202static void qemu_event_read(void *opaque)
3203{
3204 int fd = (unsigned long)opaque;
3205 ssize_t len;
3206
3207 /* Drain the notify pipe */
3208 do {
3209 char buffer[512];
3210 len = read(fd, buffer, sizeof(buffer));
3211 } while ((len == -1 && errno == EINTR) || len > 0);
3212}
3213
3214static int qemu_event_init(void)
3215{
3216 int err;
3217 int fds[2];
3218
40ff6d7e 3219 err = qemu_pipe(fds);
50317c7f
AL		 3220 if (err == -1)
3221 return -errno;
3222
3223 err = fcntl_setfl(fds[0], O_NONBLOCK);
3224 if (err < 0)
3225 goto fail;
3226
3227 err = fcntl_setfl(fds[1], O_NONBLOCK);
3228 if (err < 0)
3229 goto fail;
3230
3231 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3232 (void *)(unsigned long)fds[0]);
3233
3234 io_thread_fd = fds[1];
a7e21219
JK		 3235 return 0;
3236
50317c7f
AL		 3237fail:
3238 close(fds[0]);
3239 close(fds[1]);
3240 return err;
3241}
3242#else
3243HANDLE qemu_event_handle;
3244
3245static void dummy_event_handler(void *opaque)
3246{
3247}
3248
3249static int qemu_event_init(void)
3250{
3251 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3252 if (!qemu_event_handle) {
20889d4e 3253 fprintf(stderr, "Failed CreateEvent: %ld\n", GetLastError());
50317c7f
AL		 3254 return -1;
3255 }
3256 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3fcf7b6b
AL		 3257 return 0;
3258}
3259
50317c7f
AL		 3260static void qemu_event_increment(void)
3261{
de1c90cf 3262 if (!SetEvent(qemu_event_handle)) {
20889d4e 3263 fprintf(stderr, "qemu_event_increment: SetEvent failed: %ld\n",
de1c90cf 3264 GetLastError());
3265 exit (1);
3266 }
50317c7f
AL		 3267}
3268#endif
3269
d6dc3d42
AL		 3270static int cpu_can_run(CPUState *env)
3271{
3272 if (env->stop)
3273 return 0;
3274 if (env->stopped)
3275 return 0;
3276 return 1;
3277}
3278
3279#ifndef CONFIG_IOTHREAD
50317c7f
AL		 3280static int qemu_init_main_loop(void)
3281{
3282 return qemu_event_init();
3283}
3284
0bf46a40
AL		 3285void qemu_init_vcpu(void *_env)
3286{
3287 CPUState *env = _env;
3288
dc6b1c09
AP		 3289 env->nr_cores = smp_cores;
3290 env->nr_threads = smp_threads;
3f7638ec
JD		 3291 if (kvm_enabled())
3292 kvm_init_vcpu(env);
0bf46a40
AL		 3293 return;
3294}
3295
8edac960
AL		 3296int qemu_cpu_self(void *env)
3297{
3298 return 1;
3299}
3300
d6dc3d42
AL		 3301static void resume_all_vcpus(void)
3302{
3303}
3304
3305static void pause_all_vcpus(void)
3306{
3307}
3308
8edac960
AL		 3309void qemu_cpu_kick(void *env)
3310{
3311 return;
3312}
3313
d6dc3d42
AL		 3314void qemu_notify_event(void)
3315{
3316 CPUState *env = cpu_single_env;
3317
3318 if (env) {
3319 cpu_exit(env);
4a1418e0 3320 }
d6dc3d42
AL		 3321}
3322
d549db5a
GC		 3323void qemu_mutex_lock_iothread(void) {}
3324void qemu_mutex_unlock_iothread(void) {}
4870852c 3325
6e29f5da
AL		 3326void vm_stop(int reason)
3327{
3328 do_vm_stop(reason);
3329}
3330
d6dc3d42
AL		 3331#else /* CONFIG_IOTHREAD */
3332
3333#include "qemu-thread.h"
3334
3335QemuMutex qemu_global_mutex;
3336static QemuMutex qemu_fair_mutex;
3337
3338static QemuThread io_thread;
3339
3340static QemuThread *tcg_cpu_thread;
3341static QemuCond *tcg_halt_cond;
3342
3343static int qemu_system_ready;
3344/* cpu creation */
3345static QemuCond qemu_cpu_cond;
3346/* system init */
3347static QemuCond qemu_system_cond;
3348static QemuCond qemu_pause_cond;
3349
3350static void block_io_signals(void);
3351static void unblock_io_signals(void);
3352static int tcg_has_work(void);
3353
3354static int qemu_init_main_loop(void)
3355{
3356 int ret;
3357
3358 ret = qemu_event_init();
3359 if (ret)
3360 return ret;
3361
3362 qemu_cond_init(&qemu_pause_cond);
3363 qemu_mutex_init(&qemu_fair_mutex);
3364 qemu_mutex_init(&qemu_global_mutex);
3365 qemu_mutex_lock(&qemu_global_mutex);
3366
3367 unblock_io_signals();
3368 qemu_thread_self(&io_thread);
3369
3370 return 0;
3371}
3372
3373static void qemu_wait_io_event(CPUState *env)
3374{
3375 while (!tcg_has_work())
3376 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3377
3378 qemu_mutex_unlock(&qemu_global_mutex);
3379
3380 /*
3381 * Users of qemu_global_mutex can be starved, having no chance
3382 * to acquire it since this path will get to it first.
3383 * So use another lock to provide fairness.
3384 */
3385 qemu_mutex_lock(&qemu_fair_mutex);
3386 qemu_mutex_unlock(&qemu_fair_mutex);
3387
3388 qemu_mutex_lock(&qemu_global_mutex);
3389 if (env->stop) {
3390 env->stop = 0;
3391 env->stopped = 1;
3392 qemu_cond_signal(&qemu_pause_cond);
3393 }
3394}
3395
3396static int qemu_cpu_exec(CPUState *env);
3397
3398static void *kvm_cpu_thread_fn(void *arg)
3399{
3400 CPUState *env = arg;
3401
3402 block_io_signals();
3403 qemu_thread_self(env->thread);
321c1cb1
JCD		 3404 if (kvm_enabled())
3405 kvm_init_vcpu(env);
d6dc3d42
AL		 3406
3407 /* signal CPU creation */
3408 qemu_mutex_lock(&qemu_global_mutex);
3409 env->created = 1;
3410 qemu_cond_signal(&qemu_cpu_cond);
3411
3412 /* and wait for machine initialization */
3413 while (!qemu_system_ready)
3414 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3415
3416 while (1) {
3417 if (cpu_can_run(env))
3418 qemu_cpu_exec(env);
1c3173b9 3419 qemu_wait_io_event(env);
d6dc3d42
AL		 3420 }
3421
3422 return NULL;
3423}
3424
3425static void tcg_cpu_exec(void);
3426
3427static void *tcg_cpu_thread_fn(void *arg)
3428{
3429 CPUState *env = arg;
3430
3431 block_io_signals();
3432 qemu_thread_self(env->thread);
3433
3434 /* signal CPU creation */
3435 qemu_mutex_lock(&qemu_global_mutex);
3436 for (env = first_cpu; env != NULL; env = env->next_cpu)
3437 env->created = 1;
3438 qemu_cond_signal(&qemu_cpu_cond);
3439
3440 /* and wait for machine initialization */
3441 while (!qemu_system_ready)
3442 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3443
3444 while (1) {
3445 tcg_cpu_exec();
3446 qemu_wait_io_event(cur_cpu);
3447 }
3448
3449 return NULL;
3450}
3451
3452void qemu_cpu_kick(void *_env)
3453{
3454 CPUState *env = _env;
3455 qemu_cond_broadcast(env->halt_cond);
3456 if (kvm_enabled())
3457 qemu_thread_signal(env->thread, SIGUSR1);
3458}
3459
e5bc201d 3460int qemu_cpu_self(void *_env)
d6dc3d42 3461{
e5bc201d
GC		 3462 CPUState *env = _env;
3463 QemuThread this;
3464
3465 qemu_thread_self(&this);
3466
3467 return qemu_thread_equal(&this, env->thread);
d6dc3d42
AL		 3468}
3469
3470static void cpu_signal(int sig)
3471{
3472 if (cpu_single_env)
3473 cpu_exit(cpu_single_env);
3474}
3475
3476static void block_io_signals(void)
3477{
3478 sigset_t set;
3479 struct sigaction sigact;
3480
3481 sigemptyset(&set);
3482 sigaddset(&set, SIGUSR2);
3483 sigaddset(&set, SIGIO);
3484 sigaddset(&set, SIGALRM);
3485 pthread_sigmask(SIG_BLOCK, &set, NULL);
3486
3487 sigemptyset(&set);
3488 sigaddset(&set, SIGUSR1);
3489 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3490
3491 memset(&sigact, 0, sizeof(sigact));
3492 sigact.sa_handler = cpu_signal;
3493 sigaction(SIGUSR1, &sigact, NULL);
3494}
3495
3496static void unblock_io_signals(void)
3497{
3498 sigset_t set;
3499
3500 sigemptyset(&set);
3501 sigaddset(&set, SIGUSR2);
3502 sigaddset(&set, SIGIO);
3503 sigaddset(&set, SIGALRM);
3504 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3505
3506 sigemptyset(&set);
3507 sigaddset(&set, SIGUSR1);
3508 pthread_sigmask(SIG_BLOCK, &set, NULL);
3509}
3510
3511static void qemu_signal_lock(unsigned int msecs)
3512{
3513 qemu_mutex_lock(&qemu_fair_mutex);
3514
3515 while (qemu_mutex_trylock(&qemu_global_mutex)) {
3516 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
3517 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
3518 break;
3519 }
3520 qemu_mutex_unlock(&qemu_fair_mutex);
3521}
3522
d549db5a 3523void qemu_mutex_lock_iothread(void)
d6dc3d42
AL		 3524{
3525 if (kvm_enabled()) {
3526 qemu_mutex_lock(&qemu_fair_mutex);
3527 qemu_mutex_lock(&qemu_global_mutex);
3528 qemu_mutex_unlock(&qemu_fair_mutex);
3529 } else
3530 qemu_signal_lock(100);
3531}
3532
d549db5a 3533void qemu_mutex_unlock_iothread(void)
d6dc3d42
AL		 3534{
3535 qemu_mutex_unlock(&qemu_global_mutex);
3536}
3537
3538static int all_vcpus_paused(void)
3539{
3540 CPUState *penv = first_cpu;
3541
3542 while (penv) {
3543 if (!penv->stopped)
3544 return 0;
3545 penv = (CPUState *)penv->next_cpu;
3546 }
3547
3548 return 1;
3549}
3550
3551static void pause_all_vcpus(void)
3552{
3553 CPUState *penv = first_cpu;
3554
3555 while (penv) {
3556 penv->stop = 1;
3557 qemu_thread_signal(penv->thread, SIGUSR1);
3558 qemu_cpu_kick(penv);
3559 penv = (CPUState *)penv->next_cpu;
3560 }
3561
3562 while (!all_vcpus_paused()) {
3563 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
3564 penv = first_cpu;
3565 while (penv) {
3566 qemu_thread_signal(penv->thread, SIGUSR1);
3567 penv = (CPUState *)penv->next_cpu;
3568 }
3569 }
3570}
3571
3572static void resume_all_vcpus(void)
3573{
3574 CPUState *penv = first_cpu;
3575
3576 while (penv) {
3577 penv->stop = 0;
3578 penv->stopped = 0;
3579 qemu_thread_signal(penv->thread, SIGUSR1);
3580 qemu_cpu_kick(penv);
3581 penv = (CPUState *)penv->next_cpu;
3582 }
3583}
3584
3585static void tcg_init_vcpu(void *_env)
3586{
3587 CPUState *env = _env;
3588 /* share a single thread for all cpus with TCG */
3589 if (!tcg_cpu_thread) {
3590 env->thread = qemu_mallocz(sizeof(QemuThread));
3591 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3592 qemu_cond_init(env->halt_cond);
3593 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
3594 while (env->created == 0)
3595 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3596 tcg_cpu_thread = env->thread;
3597 tcg_halt_cond = env->halt_cond;
3598 } else {
3599 env->thread = tcg_cpu_thread;
3600 env->halt_cond = tcg_halt_cond;
3601 }
3602}
3603
3604static void kvm_start_vcpu(CPUState *env)
3605{
d6dc3d42
AL		 3606 env->thread = qemu_mallocz(sizeof(QemuThread));
3607 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
3608 qemu_cond_init(env->halt_cond);
3609 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
3610 while (env->created == 0)
3611 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
3612}
3613
3614void qemu_init_vcpu(void *_env)
3615{
3616 CPUState *env = _env;
3617
3f7638ec
JD		 3618 env->nr_cores = smp_cores;
3619 env->nr_threads = smp_threads;
d6dc3d42
AL		 3620 if (kvm_enabled())
3621 kvm_start_vcpu(env);
3622 else
3623 tcg_init_vcpu(env);
3624}
3625
3626void qemu_notify_event(void)
3627{
3628 qemu_event_increment();
3629}
3630
3631void vm_stop(int reason)
3632{
3633 QemuThread me;
3634 qemu_thread_self(&me);
3635
3636 if (!qemu_thread_equal(&me, &io_thread)) {
3637 qemu_system_vmstop_request(reason);
3638 /*
3639 * FIXME: should not return to device code in case
3640 * vm_stop() has been requested.
3641 */
3642 if (cpu_single_env) {
3643 cpu_exit(cpu_single_env);
3644 cpu_single_env->stop = 1;
3645 }
3646 return;
3647 }
3648 do_vm_stop(reason);
3649}
3650
3651#endif
3652
3653
877cf882 3654#ifdef _WIN32
69d6451c 3655static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3656{
3657 int ret, ret2, i;
f331110f
FB		 3658 PollingEntry *pe;
3659
c4b1fcc0 3660
f331110f
FB		 3661 /* XXX: need to suppress polling by better using win32 events */
3662 ret = 0;
3663 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
3664 ret |= pe->func(pe->opaque);
3665 }
e6b1e558 3666 if (ret == 0) {
a18e524a
FB		 3667 int err;
3668 WaitObjects *w = &wait_objects;
3b46e624 3669
56f3a5d0 3670 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
a18e524a
FB		 3671 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
3672 if (w->func[ret - WAIT_OBJECT_0])
3673 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
3b46e624 3674
5fafdf24 3675 /* Check for additional signaled events */
e6b1e558 3676 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
3b46e624 3677
e6b1e558
TS		 3678 /* Check if event is signaled */
3679 ret2 = WaitForSingleObject(w->events[i], 0);
3680 if(ret2 == WAIT_OBJECT_0) {
3681 if (w->func[i])
3682 w->func[i](w->opaque[i]);
3683 } else if (ret2 == WAIT_TIMEOUT) {
3684 } else {
3685 err = GetLastError();
3686 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
3b46e624
TS		 3687 }
3688 }
a18e524a
FB		 3689 } else if (ret == WAIT_TIMEOUT) {
3690 } else {
3691 err = GetLastError();
e6b1e558 3692 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
a18e524a 3693 }
f331110f 3694 }
56f3a5d0
AL		 3695
3696 *timeout = 0;
3697}
3698#else
69d6451c 3699static void host_main_loop_wait(int *timeout)
56f3a5d0
AL		 3700{
3701}
fd1dff4b 3702#endif
56f3a5d0
AL		 3703
3704void main_loop_wait(int timeout)
3705{
3706 IOHandlerRecord *ioh;
3707 fd_set rfds, wfds, xfds;
3708 int ret, nfds;
3709 struct timeval tv;
3710
3711 qemu_bh_update_timeout(&timeout);
3712
3713 host_main_loop_wait(&timeout);
3714
fd1dff4b
FB		 3715 /* poll any events */
3716 /* XXX: separate device handlers from system ones */
6abfbd79 3717 nfds = -1;
fd1dff4b
FB		 3718 FD_ZERO(&rfds);
3719 FD_ZERO(&wfds);
e035649e 3720 FD_ZERO(&xfds);
fd1dff4b 3721 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
cafffd40
TS		 3722 if (ioh->deleted)
3723 continue;
fd1dff4b
FB		 3724 if (ioh->fd_read &&
3725 (!ioh->fd_read_poll ||
3726 ioh->fd_read_poll(ioh->opaque) != 0)) {
3727 FD_SET(ioh->fd, &rfds);
3728 if (ioh->fd > nfds)
3729 nfds = ioh->fd;
3730 }
3731 if (ioh->fd_write) {
3732 FD_SET(ioh->fd, &wfds);
3733 if (ioh->fd > nfds)
3734 nfds = ioh->fd;
3735 }
3736 }
3b46e624 3737
56f3a5d0
AL		 3738 tv.tv_sec = timeout / 1000;
3739 tv.tv_usec = (timeout % 1000) * 1000;
3740
d918f23e
JK		 3741 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
3742
4870852c 3743 qemu_mutex_unlock_iothread();
e035649e 3744 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4870852c 3745 qemu_mutex_lock_iothread();
fd1dff4b 3746 if (ret > 0) {
cafffd40
TS		 3747 IOHandlerRecord **pioh;
3748
3749 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
6ab43fdc 3750 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
fd1dff4b 3751 ioh->fd_read(ioh->opaque);
7c9d8e07 3752 }
6ab43fdc 3753 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
fd1dff4b 3754 ioh->fd_write(ioh->opaque);
c4b1fcc0 3755 }
b4608c04 3756 }
cafffd40
TS		 3757
3758 /* remove deleted IO handlers */
3759 pioh = &first_io_handler;
3760 while (*pioh) {
3761 ioh = *pioh;
3762 if (ioh->deleted) {
3763 *pioh = ioh->next;
3764 qemu_free(ioh);
5fafdf24 3765 } else
cafffd40
TS		 3766 pioh = &ioh->next;
3767 }
fd1dff4b 3768 }
d918f23e
JK		 3769
3770 slirp_select_poll(&rfds, &wfds, &xfds, (ret < 0));
b4608c04 3771
50317c7f
AL		 3772 /* rearm timer, if not periodic */
3773 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
3774 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
3775 qemu_rearm_alarm_timer(alarm_timer);
3776 }
3777
357c692c 3778 /* vm time timers */
d6dc3d42
AL		 3779 if (vm_running) {
3780 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
0fdddf80
JK		 3781 qemu_run_timers(&active_timers[QEMU_CLOCK_VIRTUAL],
3782 qemu_get_clock(vm_clock));
d6dc3d42 3783 }
357c692c
AL		 3784
3785 /* real time timers */
0fdddf80 3786 qemu_run_timers(&active_timers[QEMU_CLOCK_REALTIME],
357c692c
AL		 3787 qemu_get_clock(rt_clock));
3788
21d5d12b
JK		 3789 qemu_run_timers(&active_timers[QEMU_CLOCK_HOST],
3790 qemu_get_clock(host_clock));
3791
423f0742
PB		 3792 /* Check bottom-halves last in case any of the earlier events triggered
3793 them. */
3794 qemu_bh_poll();
3b46e624 3795
5905b2e5
FB		 3796}
3797
43b96858 3798static int qemu_cpu_exec(CPUState *env)
5905b2e5 3799{
43b96858 3800 int ret;
89bfc105
FB		 3801#ifdef CONFIG_PROFILER
3802 int64_t ti;
3803#endif
5905b2e5 3804
89bfc105 3805#ifdef CONFIG_PROFILER
43b96858 3806 ti = profile_getclock();
89bfc105 3807#endif
43b96858
AL		 3808 if (use_icount) {
3809 int64_t count;
3810 int decr;
3811 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
3812 env->icount_decr.u16.low = 0;
3813 env->icount_extra = 0;
3814 count = qemu_next_deadline();
3815 count = (count + (1 << icount_time_shift) - 1)
3816 >> icount_time_shift;
3817 qemu_icount += count;
3818 decr = (count > 0xffff) ? 0xffff : count;
3819 count -= decr;
3820 env->icount_decr.u16.low = decr;
3821 env->icount_extra = count;
3822 }
3823 ret = cpu_exec(env);
89bfc105 3824#ifdef CONFIG_PROFILER
43b96858 3825 qemu_time += profile_getclock() - ti;
89bfc105 3826#endif
43b96858
AL		 3827 if (use_icount) {
3828 /* Fold pending instructions back into the
3829 instruction counter, and clear the interrupt flag. */
3830 qemu_icount -= (env->icount_decr.u16.low
3831 + env->icount_extra);
3832 env->icount_decr.u32 = 0;
3833 env->icount_extra = 0;
3834 }
3835 return ret;
3836}
3837
e6e35b1e
AL		 3838static void tcg_cpu_exec(void)
3839{
d6dc3d42 3840 int ret = 0;
e6e35b1e
AL		 3841
3842 if (next_cpu == NULL)
3843 next_cpu = first_cpu;
3844 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
3845 CPUState *env = cur_cpu = next_cpu;
3846
3847 if (!vm_running)
3848 break;
3849 if (timer_alarm_pending) {
3850 timer_alarm_pending = 0;
3851 break;
3852 }
d6dc3d42
AL		 3853 if (cpu_can_run(env))
3854 ret = qemu_cpu_exec(env);
e6e35b1e
AL		 3855 if (ret == EXCP_DEBUG) {
3856 gdb_set_stop_cpu(env);
3857 debug_requested = 1;
3858 break;
3859 }
3860 }
3861}
3862
43b96858
AL		 3863static int cpu_has_work(CPUState *env)
3864{
d6dc3d42
AL		 3865 if (env->stop)
3866 return 1;
3867 if (env->stopped)
3868 return 0;
43b96858
AL		 3869 if (!env->halted)
3870 return 1;
3871 if (qemu_cpu_has_work(env))
3872 return 1;
3873 return 0;
3874}
3875
3876static int tcg_has_work(void)
3877{
3878 CPUState *env;
3879
3880 for (env = first_cpu; env != NULL; env = env->next_cpu)
3881 if (cpu_has_work(env))
3882 return 1;
3883 return 0;
3884}
3885
3886static int qemu_calculate_timeout(void)
3887{
b319820d 3888#ifndef CONFIG_IOTHREAD
43b96858
AL		 3889 int timeout;
3890
3891 if (!vm_running)
3892 timeout = 5000;
3893 else if (tcg_has_work())
3894 timeout = 0;
3895 else if (!use_icount)
3896 timeout = 5000;
3897 else {
3898 /* XXX: use timeout computed from timers */
3899 int64_t add;
3900 int64_t delta;
3901 /* Advance virtual time to the next event. */
3902 if (use_icount == 1) {
3903 /* When not using an adaptive execution frequency
3904 we tend to get badly out of sync with real time,
3905 so just delay for a reasonable amount of time. */
3906 delta = 0;
3907 } else {
3908 delta = cpu_get_icount() - cpu_get_clock();
3909 }
3910 if (delta > 0) {
3911 /* If virtual time is ahead of real time then just
3912 wait for IO. */
3913 timeout = (delta / 1000000) + 1;
3914 } else {
3915 /* Wait for either IO to occur or the next
3916 timer event. */
3917 add = qemu_next_deadline();
3918 /* We advance the timer before checking for IO.
3919 Limit the amount we advance so that early IO
3920 activity won't get the guest too far ahead. */
3921 if (add > 10000000)
3922 add = 10000000;
3923 delta += add;
3924 add = (add + (1 << icount_time_shift) - 1)
3925 >> icount_time_shift;
3926 qemu_icount += add;
3927 timeout = delta / 1000000;
3928 if (timeout < 0)
3929 timeout = 0;
3930 }
3931 }
3932
3933 return timeout;
b319820d
LC		 3934#else /* CONFIG_IOTHREAD */
3935 return 1000;
3936#endif
43b96858
AL		 3937}
3938
3939static int vm_can_run(void)
3940{
3941 if (powerdown_requested)
3942 return 0;
3943 if (reset_requested)
3944 return 0;
3945 if (shutdown_requested)
3946 return 0;
e568902a
AL		 3947 if (debug_requested)
3948 return 0;
43b96858
AL		 3949 return 1;
3950}
3951
d9c32310
BS		 3952qemu_irq qemu_system_powerdown;
3953
43b96858
AL		 3954static void main_loop(void)
3955{
6e29f5da 3956 int r;
e6e35b1e 3957
d6dc3d42
AL		 3958#ifdef CONFIG_IOTHREAD
3959 qemu_system_ready = 1;
3960 qemu_cond_broadcast(&qemu_system_cond);
3961#endif
3962
6e29f5da 3963 for (;;) {
43b96858 3964 do {
e6e35b1e
AL		 3965#ifdef CONFIG_PROFILER
3966 int64_t ti;
3967#endif
d6dc3d42 3968#ifndef CONFIG_IOTHREAD
e6e35b1e 3969 tcg_cpu_exec();
d6dc3d42 3970#endif
89bfc105 3971#ifdef CONFIG_PROFILER
43b96858 3972 ti = profile_getclock();
89bfc105 3973#endif
43b96858 3974 main_loop_wait(qemu_calculate_timeout());
89bfc105 3975#ifdef CONFIG_PROFILER
43b96858 3976 dev_time += profile_getclock() - ti;
89bfc105 3977#endif
e568902a 3978 } while (vm_can_run());
43b96858 3979
b1a15e7e 3980 if (qemu_debug_requested()) {
242cd003 3981 monitor_protocol_event(QEVENT_DEBUG, NULL);
e568902a 3982 vm_stop(EXCP_DEBUG);
b1a15e7e 3983 }
43b96858 3984 if (qemu_shutdown_requested()) {
242cd003 3985 monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
43b96858
AL		 3986 if (no_shutdown) {
3987 vm_stop(0);
3988 no_shutdown = 0;
3989 } else
3990 break;
3991 }
d6dc3d42 3992 if (qemu_reset_requested()) {
242cd003 3993 monitor_protocol_event(QEVENT_RESET, NULL);
d6dc3d42 3994 pause_all_vcpus();
43b96858 3995 qemu_system_reset();
d6dc3d42
AL		 3996 resume_all_vcpus();
3997 }
d9c32310 3998 if (qemu_powerdown_requested()) {
242cd003 3999 monitor_protocol_event(QEVENT_POWERDOWN, NULL);
d9c32310
BS		 4000 qemu_irq_raise(qemu_system_powerdown);
4001 }
b1a15e7e 4002 if ((r = qemu_vmstop_requested())) {
242cd003 4003 monitor_protocol_event(QEVENT_STOP, NULL);
6e29f5da 4004 vm_stop(r);
b1a15e7e 4005 }
b4608c04 4006 }
d6dc3d42 4007 pause_all_vcpus();
b4608c04
FB		 4008}
4009
9bd7e6d9
PB		 4010static void version(void)
4011{
4a19f1ec 4012 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
9bd7e6d9
PB		 4013}
4014
15f82208 4015static void help(int exitcode)
0824d6fc 4016{
9bd7e6d9
PB		 4017 version();
4018 printf("usage: %s [options] [disk_image]\n"
0824d6fc 4019 "\n"
a20dd508 4020 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
fc01f7e7 4021 "\n"
5824d651
BS		 4022#define DEF(option, opt_arg, opt_enum, opt_help) \
4023 opt_help
4024#define DEFHEADING(text) stringify(text) "\n"
4025#include "qemu-options.h"
4026#undef DEF
4027#undef DEFHEADING
4028#undef GEN_DOCS
0824d6fc 4029 "\n"
82c643ff 4030 "During emulation, the following keys are useful:\n"
032a8c9e
FB		 4031 "ctrl-alt-f toggle full screen\n"
4032 "ctrl-alt-n switch to virtual console 'n'\n"
4033 "ctrl-alt toggle mouse and keyboard grab\n"
82c643ff
FB		 4034 "\n"
4035 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4036 ,
0db63474 4037 "qemu",
a00bad7e 4038 DEFAULT_RAM_SIZE,
7c9d8e07 4039#ifndef _WIN32
a00bad7e 4040 DEFAULT_NETWORK_SCRIPT,
b46a8906 4041 DEFAULT_NETWORK_DOWN_SCRIPT,
7c9d8e07 4042#endif
6e44ba7f 4043 DEFAULT_GDBSTUB_PORT,
bce61846 4044 "/tmp/qemu.log");
15f82208 4045 exit(exitcode);
0824d6fc
FB		 4046}
4047
cd6f1169
FB		 4048#define HAS_ARG 0x0001
4049
4050enum {
5824d651
BS		 4051#define DEF(option, opt_arg, opt_enum, opt_help) \
4052 opt_enum,
4053#define DEFHEADING(text)
4054#include "qemu-options.h"
4055#undef DEF
4056#undef DEFHEADING
4057#undef GEN_DOCS
cd6f1169
FB		 4058};
4059
4060typedef struct QEMUOption {
4061 const char *name;
4062 int flags;
4063 int index;
4064} QEMUOption;
4065
dbed7e40 4066static const QEMUOption qemu_options[] = {
cd6f1169 4067 { "h", 0, QEMU_OPTION_h },
5824d651
BS		 4068#define DEF(option, opt_arg, opt_enum, opt_help) \
4069 { option, opt_arg, opt_enum },
4070#define DEFHEADING(text)
4071#include "qemu-options.h"
4072#undef DEF
4073#undef DEFHEADING
4074#undef GEN_DOCS
cd6f1169 4075 { NULL },
fc01f7e7
FB		 4076};
4077
1d14ffa9 4078#ifdef HAS_AUDIO
6a36d84e 4079struct soundhw soundhw[] = {
b00052e4 4080#ifdef HAS_AUDIO_CHOICE
4ce7ff6e 4081#if defined(TARGET_I386) || defined(TARGET_MIPS)
fd06c375
FB		 4082 {
4083 "pcspk",
4084 "PC speaker",
4085 0,
4086 1,
4087 { .init_isa = pcspk_audio_init }
4088 },
4089#endif
4c9b53e3 4090
4091#ifdef CONFIG_SB16
6a36d84e
FB		 4092 {
4093 "sb16",
4094 "Creative Sound Blaster 16",
4095 0,
4096 1,
4097 { .init_isa = SB16_init }
4098 },
4c9b53e3 4099#endif
6a36d84e 4100
cc53d26d 4101#ifdef CONFIG_CS4231A
4102 {
4103 "cs4231a",
4104 "CS4231A",
4105 0,
4106 1,
4107 { .init_isa = cs4231a_init }
4108 },
4109#endif
4110
1d14ffa9 4111#ifdef CONFIG_ADLIB
6a36d84e
FB		 4112 {
4113 "adlib",
1d14ffa9 4114#ifdef HAS_YMF262
6a36d84e 4115 "Yamaha YMF262 (OPL3)",
1d14ffa9 4116#else
6a36d84e 4117 "Yamaha YM3812 (OPL2)",
1d14ffa9 4118#endif
6a36d84e
FB		 4119 0,
4120 1,
4121 { .init_isa = Adlib_init }
4122 },
1d14ffa9 4123#endif
6a36d84e 4124
1d14ffa9 4125#ifdef CONFIG_GUS
6a36d84e
FB		 4126 {
4127 "gus",
4128 "Gravis Ultrasound GF1",
4129 0,
4130 1,
4131 { .init_isa = GUS_init }
4132 },
1d14ffa9 4133#endif
6a36d84e 4134
4c9b53e3 4135#ifdef CONFIG_AC97
e5c9a13e
AZ		 4136 {
4137 "ac97",
4138 "Intel 82801AA AC97 Audio",
4139 0,
4140 0,
4141 { .init_pci = ac97_init }
4142 },
4c9b53e3 4143#endif
e5c9a13e 4144
4c9b53e3 4145#ifdef CONFIG_ES1370
6a36d84e
FB		 4146 {
4147 "es1370",
4148 "ENSONIQ AudioPCI ES1370",
4149 0,
4150 0,
4151 { .init_pci = es1370_init }
4152 },
b00052e4 4153#endif
6a36d84e 4154
4c9b53e3 4155#endif /* HAS_AUDIO_CHOICE */
4156
6a36d84e
FB		 4157 { NULL, NULL, 0, 0, { NULL } }
4158};
4159
4160static void select_soundhw (const char *optarg)
4161{
4162 struct soundhw *c;
4163
4164 if (*optarg == '?') {
4165 show_valid_cards:
4166
4167 printf ("Valid sound card names (comma separated):\n");
4168 for (c = soundhw; c->name; ++c) {
4169 printf ("%-11s %s\n", c->name, c->descr);
4170 }
4171 printf ("\n-soundhw all will enable all of the above\n");
1d14ffa9
FB		 4172 exit (*optarg != '?');
4173 }
4174 else {
6a36d84e 4175 size_t l;
1d14ffa9
FB		 4176 const char *p;
4177 char *e;
4178 int bad_card = 0;
4179
6a36d84e
FB		 4180 if (!strcmp (optarg, "all")) {
4181 for (c = soundhw; c->name; ++c) {
4182 c->enabled = 1;
4183 }
4184 return;
4185 }
1d14ffa9 4186
6a36d84e 4187 p = optarg;
1d14ffa9
FB		 4188 while (*p) {
4189 e = strchr (p, ',');
4190 l = !e ? strlen (p) : (size_t) (e - p);
6a36d84e
FB		 4191
4192 for (c = soundhw; c->name; ++c) {
b3d6fb4a 4193 if (!strncmp (c->name, p, l) && !c->name[l]) {
6a36d84e 4194 c->enabled = 1;
1d14ffa9
FB		 4195 break;
4196 }
4197 }
6a36d84e
FB		 4198
4199 if (!c->name) {
1d14ffa9
FB		 4200 if (l > 80) {
4201 fprintf (stderr,
4202 "Unknown sound card name (too big to show)\n");
4203 }
4204 else {
4205 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4206 (int) l, p);
4207 }
4208 bad_card = 1;
4209 }
4210 p += l + (e != NULL);
4211 }
4212
4213 if (bad_card)
4214 goto show_valid_cards;
4215 }
4216}
4217#endif
4218
3893c124 4219static void select_vgahw (const char *p)
4220{
4221 const char *opts;
4222
64465297 4223 default_vga = 0;
86176759 4224 vga_interface_type = VGA_NONE;
3893c124 4225 if (strstart(p, "std", &opts)) {
86176759 4226 vga_interface_type = VGA_STD;
3893c124 4227 } else if (strstart(p, "cirrus", &opts)) {
86176759 4228 vga_interface_type = VGA_CIRRUS;
3893c124 4229 } else if (strstart(p, "vmware", &opts)) {
86176759 4230 vga_interface_type = VGA_VMWARE;
94909d9f 4231 } else if (strstart(p, "xenfb", &opts)) {
86176759 4232 vga_interface_type = VGA_XENFB;
28b85ed8 4233 } else if (!strstart(p, "none", &opts)) {
3893c124 4234 invalid_vga:
4235 fprintf(stderr, "Unknown vga type: %s\n", p);
4236 exit(1);
4237 }
cb5a7aa8 4238 while (*opts) {
4239 const char *nextopt;
4240
4241 if (strstart(opts, ",retrace=", &nextopt)) {
4242 opts = nextopt;
4243 if (strstart(opts, "dumb", &nextopt))
4244 vga_retrace_method = VGA_RETRACE_DUMB;
4245 else if (strstart(opts, "precise", &nextopt))
4246 vga_retrace_method = VGA_RETRACE_PRECISE;
4247 else goto invalid_vga;
4248 } else goto invalid_vga;
4249 opts = nextopt;
4250 }
3893c124 4251}
4252
7d4c3d53
MA		 4253#ifdef TARGET_I386
4254static int balloon_parse(const char *arg)
4255{
382f0743 4256 QemuOpts *opts;
7d4c3d53 4257
382f0743
GH		 4258 if (strcmp(arg, "none") == 0) {
4259 return 0;
4260 }
4261
4262 if (!strncmp(arg, "virtio", 6)) {
4263 if (arg[6] == ',') {
4264 /* have params -> parse them */
4265 opts = qemu_opts_parse(&qemu_device_opts, arg+7, NULL);
4266 if (!opts)
4267 return -1;
4268 } else {
4269 /* create empty opts */
4270 opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
7d4c3d53 4271 }
382f0743
GH		 4272 qemu_opt_set(opts, "driver", "virtio-balloon-pci");
4273 return 0;
7d4c3d53 4274 }
382f0743
GH		 4275
4276 return -1;
7d4c3d53
MA		 4277}
4278#endif
4279
3587d7e6
FB		 4280#ifdef _WIN32
4281static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4282{
4283 exit(STATUS_CONTROL_C_EXIT);
4284 return TRUE;
4285}
4286#endif
4287
c4be29ff 4288int qemu_uuid_parse(const char *str, uint8_t *uuid)
8fcb1b90
BS		 4289{
4290 int ret;
4291
4292 if(strlen(str) != 36)
4293 return -1;
4294
4295 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4296 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4297 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4298
4299 if(ret != 16)
4300 return -1;
4301
b6f6e3d3
AL		 4302#ifdef TARGET_I386
4303 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4304#endif
4305
8fcb1b90
BS		 4306 return 0;
4307}
4308
5b08fc10
AL		 4309#ifndef _WIN32
4310
4311static void termsig_handler(int signal)
4312{
4313 qemu_system_shutdown_request();
4314}
4315
7c3370d4
JK		 4316static void sigchld_handler(int signal)
4317{
4318 waitpid(-1, NULL, WNOHANG);
4319}
4320
4321static void sighandler_setup(void)
5b08fc10
AL		 4322{
4323 struct sigaction act;
4324
4325 memset(&act, 0, sizeof(act));
4326 act.sa_handler = termsig_handler;
4327 sigaction(SIGINT, &act, NULL);
4328 sigaction(SIGHUP, &act, NULL);
4329 sigaction(SIGTERM, &act, NULL);
7c3370d4
JK		 4330
4331 act.sa_handler = sigchld_handler;
4332 act.sa_flags = SA_NOCLDSTOP;
4333 sigaction(SIGCHLD, &act, NULL);
5b08fc10
AL		 4334}
4335
4336#endif
4337
5cea8590
PB		 4338#ifdef _WIN32
4339/* Look for support files in the same directory as the executable. */
4340static char *find_datadir(const char *argv0)
4341{
4342 char *p;
4343 char buf[MAX_PATH];
4344 DWORD len;
4345
4346 len = GetModuleFileName(NULL, buf, sizeof(buf) - 1);
4347 if (len == 0) {
c5947808 4348 return NULL;
5cea8590
PB		 4349 }
4350
4351 buf[len] = 0;
4352 p = buf + len - 1;
4353 while (p != buf && *p != '\\')
4354 p--;
4355 *p = 0;
4356 if (access(buf, R_OK) == 0) {
4357 return qemu_strdup(buf);
4358 }
4359 return NULL;
4360}
4361#else /* !_WIN32 */
4362
4363/* Find a likely location for support files using the location of the binary.
4364 For installed binaries this will be "$bindir/../share/qemu". When
4365 running from the build tree this will be "$bindir/../pc-bios". */
4366#define SHARE_SUFFIX "/share/qemu"
4367#define BUILD_SUFFIX "/pc-bios"
4368static char *find_datadir(const char *argv0)
4369{
4370 char *dir;
4371 char *p = NULL;
4372 char *res;
5cea8590 4373 char buf[PATH_MAX];
3a41759d 4374 size_t max_len;
5cea8590
PB		 4375
4376#if defined(__linux__)
4377 {
4378 int len;
4379 len = readlink("/proc/self/exe", buf, sizeof(buf) - 1);
4380 if (len > 0) {
4381 buf[len] = 0;
4382 p = buf;
4383 }
4384 }
4385#elif defined(__FreeBSD__)
4386 {
4387 int len;
4388 len = readlink("/proc/curproc/file", buf, sizeof(buf) - 1);
4389 if (len > 0) {
4390 buf[len] = 0;
4391 p = buf;
4392 }
4393 }
4394#endif
4395 /* If we don't have any way of figuring out the actual executable
4396 location then try argv[0]. */
4397 if (!p) {
4d224196 4398 p = realpath(argv0, buf);
5cea8590
PB		 4399 if (!p) {
4400 return NULL;
4401 }
4402 }
4403 dir = dirname(p);
4404 dir = dirname(dir);
4405
3a41759d
BS		 4406 max_len = strlen(dir) +
4407 MAX(strlen(SHARE_SUFFIX), strlen(BUILD_SUFFIX)) + 1;
4408 res = qemu_mallocz(max_len);
4409 snprintf(res, max_len, "%s%s", dir, SHARE_SUFFIX);
5cea8590 4410 if (access(res, R_OK)) {
3a41759d 4411 snprintf(res, max_len, "%s%s", dir, BUILD_SUFFIX);
5cea8590
PB		 4412 if (access(res, R_OK)) {
4413 qemu_free(res);
4414 res = NULL;
4415 }
4416 }
4d224196 4417
5cea8590
PB		 4418 return res;
4419}
4420#undef SHARE_SUFFIX
4421#undef BUILD_SUFFIX
4422#endif
4423
4424char *qemu_find_file(int type, const char *name)
4425{
4426 int len;
4427 const char *subdir;
4428 char *buf;
4429
4430 /* If name contains path separators then try it as a straight path. */
4431 if ((strchr(name, '/') || strchr(name, '\\'))
4432 && access(name, R_OK) == 0) {
73ffc805 4433 return qemu_strdup(name);
5cea8590
PB		 4434 }
4435 switch (type) {
4436 case QEMU_FILE_TYPE_BIOS:
4437 subdir = "";
4438 break;
4439 case QEMU_FILE_TYPE_KEYMAP:
4440 subdir = "keymaps/";
4441 break;
4442 default:
4443 abort();
4444 }
4445 len = strlen(data_dir) + strlen(name) + strlen(subdir) + 2;
4446 buf = qemu_mallocz(len);
3a41759d 4447 snprintf(buf, len, "%s/%s%s", data_dir, subdir, name);
5cea8590
PB		 4448 if (access(buf, R_OK)) {
4449 qemu_free(buf);
4450 return NULL;
4451 }
4452 return buf;
4453}
4454
f31d07d1
GH		 4455static int device_init_func(QemuOpts *opts, void *opaque)
4456{
4457 DeviceState *dev;
4458
4459 dev = qdev_device_add(opts);
4460 if (!dev)
4461 return -1;
4462 return 0;
4463}
4464
1a688d3b
GH		 4465static int chardev_init_func(QemuOpts *opts, void *opaque)
4466{
4467 CharDriverState *chr;
4468
4469 chr = qemu_chr_open_opts(opts, NULL);
4470 if (!chr)
4471 return -1;
4472 return 0;
4473}
4474
88589343
GH		 4475static int mon_init_func(QemuOpts *opts, void *opaque)
4476{
4477 CharDriverState *chr;
4478 const char *chardev;
4479 const char *mode;
4480 int flags;
4481
4482 mode = qemu_opt_get(opts, "mode");
4483 if (mode == NULL) {
4484 mode = "readline";
4485 }
4486 if (strcmp(mode, "readline") == 0) {
4487 flags = MONITOR_USE_READLINE;
4488 } else if (strcmp(mode, "control") == 0) {
4489 flags = MONITOR_USE_CONTROL;
4490 } else {
4491 fprintf(stderr, "unknown monitor mode \"%s\"\n", mode);
4492 exit(1);
4493 }
4494
4495 if (qemu_opt_get_bool(opts, "default", 0))
4496 flags |= MONITOR_IS_DEFAULT;
4497
4498 chardev = qemu_opt_get(opts, "chardev");
4499 chr = qemu_chr_find(chardev);
4500 if (chr == NULL) {
4501 fprintf(stderr, "chardev \"%s\" not found\n", chardev);
4502 exit(1);
4503 }
4504
4505 monitor_init(chr, flags);
4506 return 0;
4507}
4508
6ca5582d 4509static void monitor_parse(const char *optarg, const char *mode)
88589343
GH		 4510{
4511 static int monitor_device_index = 0;
4512 QemuOpts *opts;
4513 const char *p;
4514 char label[32];
4515 int def = 0;
4516
4517 if (strstart(optarg, "chardev:", &p)) {
4518 snprintf(label, sizeof(label), "%s", p);
4519 } else {
4520 if (monitor_device_index) {
4521 snprintf(label, sizeof(label), "monitor%d",
4522 monitor_device_index);
4523 } else {
4524 snprintf(label, sizeof(label), "monitor");
4525 def = 1;
4526 }
4527 opts = qemu_chr_parse_compat(label, optarg);
4528 if (!opts) {
4529 fprintf(stderr, "parse error: %s\n", optarg);
4530 exit(1);
4531 }
4532 }
4533
4534 opts = qemu_opts_create(&qemu_mon_opts, label, 1);
4535 if (!opts) {
4536 fprintf(stderr, "duplicate chardev: %s\n", label);
4537 exit(1);
4538 }
6ca5582d 4539 qemu_opt_set(opts, "mode", mode);
88589343
GH		 4540 qemu_opt_set(opts, "chardev", label);
4541 if (def)
4542 qemu_opt_set(opts, "default", "on");
4543 monitor_device_index++;
4544}
4545
bd3c948d
GH		 4546struct device_config {
4547 enum {
aee1b935
GH		 4548 DEV_USB, /* -usbdevice */
4549 DEV_BT, /* -bt */
4550 DEV_SERIAL, /* -serial */
4551 DEV_PARALLEL, /* -parallel */
4552 DEV_VIRTCON, /* -virtioconsole */
c9f398e5 4553 DEV_DEBUGCON, /* -debugcon */
bd3c948d
GH		 4554 } type;
4555 const char *cmdline;
72cf2d4f 4556 QTAILQ_ENTRY(device_config) next;
bd3c948d 4557};
72cf2d4f 4558QTAILQ_HEAD(, device_config) device_configs = QTAILQ_HEAD_INITIALIZER(device_configs);
bd3c948d
GH		 4559
4560static void add_device_config(int type, const char *cmdline)
4561{
4562 struct device_config *conf;
4563
4564 conf = qemu_mallocz(sizeof(*conf));
4565 conf->type = type;
4566 conf->cmdline = cmdline;
72cf2d4f 4567 QTAILQ_INSERT_TAIL(&device_configs, conf, next);
bd3c948d
GH		 4568}
4569
4570static int foreach_device_config(int type, int (*func)(const char *cmdline))
4571{
4572 struct device_config *conf;
4573 int rc;
4574
72cf2d4f 4575 QTAILQ_FOREACH(conf, &device_configs, next) {
bd3c948d
GH		 4576 if (conf->type != type)
4577 continue;
4578 rc = func(conf->cmdline);
4579 if (0 != rc)
4580 return rc;
4581 }
4582 return 0;
4583}
4584
998bbd74
GH		 4585static int serial_parse(const char *devname)
4586{
4587 static int index = 0;
4588 char label[32];
4589
4590 if (strcmp(devname, "none") == 0)
4591 return 0;
4592 if (index == MAX_SERIAL_PORTS) {
4593 fprintf(stderr, "qemu: too many serial ports\n");
4594 exit(1);
4595 }
4596 snprintf(label, sizeof(label), "serial%d", index);
4597 serial_hds[index] = qemu_chr_open(label, devname, NULL);
4598 if (!serial_hds[index]) {
4599 fprintf(stderr, "qemu: could not open serial device '%s': %s\n",
4600 devname, strerror(errno));
4601 return -1;
4602 }
4603 index++;
4604 return 0;
4605}
4606
6a5e8b0e
GH		 4607static int parallel_parse(const char *devname)
4608{
4609 static int index = 0;
4610 char label[32];
4611
4612 if (strcmp(devname, "none") == 0)
4613 return 0;
4614 if (index == MAX_PARALLEL_PORTS) {
4615 fprintf(stderr, "qemu: too many parallel ports\n");
4616 exit(1);
4617 }
4618 snprintf(label, sizeof(label), "parallel%d", index);
4619 parallel_hds[index] = qemu_chr_open(label, devname, NULL);
4620 if (!parallel_hds[index]) {
4621 fprintf(stderr, "qemu: could not open parallel device '%s': %s\n",
4622 devname, strerror(errno));
4623 return -1;
4624 }
4625 index++;
4626 return 0;
4627}
4628
aee1b935
GH		 4629static int virtcon_parse(const char *devname)
4630{
4631 static int index = 0;
4632 char label[32];
392ecf54 4633 QemuOpts *bus_opts, *dev_opts;
aee1b935
GH		 4634
4635 if (strcmp(devname, "none") == 0)
4636 return 0;
4637 if (index == MAX_VIRTIO_CONSOLES) {
4638 fprintf(stderr, "qemu: too many virtio consoles\n");
4639 exit(1);
4640 }
392ecf54
AS		 4641
4642 bus_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4643 qemu_opt_set(bus_opts, "driver", "virtio-serial");
4644
4645 dev_opts = qemu_opts_create(&qemu_device_opts, NULL, 0);
4646 qemu_opt_set(dev_opts, "driver", "virtconsole");
4647
aee1b935
GH		 4648 snprintf(label, sizeof(label), "virtcon%d", index);
4649 virtcon_hds[index] = qemu_chr_open(label, devname, NULL);
4650 if (!virtcon_hds[index]) {
4651 fprintf(stderr, "qemu: could not open virtio console '%s': %s\n",
4652 devname, strerror(errno));
4653 return -1;
4654 }
392ecf54
AS		 4655 qemu_opt_set(dev_opts, "chardev", label);
4656
aee1b935
GH		 4657 index++;
4658 return 0;
4659}
4660
c9f398e5
PA		 4661static int debugcon_parse(const char *devname)
4662{
4663 QemuOpts *opts;
4664
4665 if (!qemu_chr_open("debugcon", devname, NULL)) {
4666 exit(1);
4667 }
4668 opts = qemu_opts_create(&qemu_device_opts, "debugcon", 1);
4669 if (!opts) {
4670 fprintf(stderr, "qemu: already have a debugcon device\n");
4671 exit(1);
4672 }
4673 qemu_opt_set(opts, "driver", "isa-debugcon");
4674 qemu_opt_set(opts, "chardev", "debugcon");
4675 return 0;
4676}
4677
6530a97b
AL		 4678static const QEMUOption *lookup_opt(int argc, char **argv,
4679 const char **poptarg, int *poptind)
4680{
4681 const QEMUOption *popt;
4682 int optind = *poptind;
4683 char *r = argv[optind];
4684 const char *optarg;
4685
4686 optind++;
4687 /* Treat --foo the same as -foo. */
4688 if (r[1] == '-')
4689 r++;
4690 popt = qemu_options;
4691 for(;;) {
4692 if (!popt->name) {
4693 fprintf(stderr, "%s: invalid option -- '%s'\n",
4694 argv[0], r);
4695 exit(1);
4696 }
4697 if (!strcmp(popt->name, r + 1))
4698 break;
4699 popt++;
4700 }
4701 if (popt->flags & HAS_ARG) {
4702 if (optind >= argc) {
4703 fprintf(stderr, "%s: option '%s' requires an argument\n",
4704 argv[0], r);
4705 exit(1);
4706 }
4707 optarg = argv[optind++];
4708 } else {
4709 optarg = NULL;
4710 }
4711
4712 *poptarg = optarg;
4713 *poptind = optind;
4714
4715 return popt;
4716}
4717
902b3d5c 4718int main(int argc, char **argv, char **envp)
0824d6fc 4719{
59030a8c 4720 const char *gdbstub_dev = NULL;
28c5af54 4721 uint32_t boot_devices_bitmap = 0;
e4bcb14c 4722 int i;
28c5af54 4723 int snapshot, linux_boot, net_boot;
7f7f9873 4724 const char *initrd_filename;
a20dd508 4725 const char *kernel_filename, *kernel_cmdline;
195325a4 4726 char boot_devices[33] = "cad"; /* default to HD->floppy->CD-ROM */
3023f332 4727 DisplayState *ds;
7d957bd8 4728 DisplayChangeListener *dcl;
46d4767d 4729 int cyls, heads, secs, translation;
f31d07d1 4730 QemuOpts *hda_opts = NULL, *opts;
cd6f1169 4731 int optind;
6530a97b 4732 const char *optarg;
d63d307f 4733 const char *loadvm = NULL;
cc1daa40 4734 QEMUMachine *machine;
94fc95cd 4735 const char *cpu_model;
b9e82a59 4736#ifndef _WIN32
71e3ceb8 4737 int fds[2];
b9e82a59 4738#endif
26a5f13b 4739 int tb_size;
93815bc2 4740 const char *pid_file = NULL;
5bb7910a 4741 const char *incoming = NULL;
b9e82a59 4742#ifndef _WIN32
54042bcf
AL		 4743 int fd = 0;
4744 struct passwd *pwd = NULL;
0858532e
AL		 4745 const char *chroot_dir = NULL;
4746 const char *run_as = NULL;
b9e82a59 4747#endif
268a362c 4748 CPUState *env;
993fbfdb 4749 int show_vnc_port = 0;
292444cb 4750 int defconfig = 1;
0bd48850 4751
6875204c
JK		 4752 init_clocks();
4753
ac7531ec 4754 qemu_errors_to_file(stderr);
902b3d5c 4755 qemu_cache_utils_init(envp);
4756
72cf2d4f 4757 QLIST_INIT (&vm_change_state_head);
be995c27
FB		 4758#ifndef _WIN32
4759 {
4760 struct sigaction act;
4761 sigfillset(&act.sa_mask);
4762 act.sa_flags = 0;
4763 act.sa_handler = SIG_IGN;
4764 sigaction(SIGPIPE, &act, NULL);
4765 }
3587d7e6
FB		 4766#else
4767 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
a8e5ac33
FB		 4768 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4769 QEMU to run on a single CPU */
4770 {
4771 HANDLE h;
4772 DWORD mask, smask;
4773 int i;
4774 h = GetCurrentProcess();
4775 if (GetProcessAffinityMask(h, &mask, &smask)) {
4776 for(i = 0; i < 32; i++) {
4777 if (mask & (1 << i))
4778 break;
4779 }
4780 if (i != 32) {
4781 mask = 1 << i;
4782 SetProcessAffinityMask(h, mask);
4783 }
4784 }
4785 }
67b915a5 4786#endif
be995c27 4787
f80f9ec9 4788 module_call_init(MODULE_INIT_MACHINE);
0c257437 4789 machine = find_default_machine();
94fc95cd 4790 cpu_model = NULL;
fc01f7e7 4791 initrd_filename = NULL;
4fc5d071 4792 ram_size = 0;
33e3963e 4793 snapshot = 0;
a20dd508
FB		 4794 kernel_filename = NULL;
4795 kernel_cmdline = "";
c4b1fcc0 4796 cyls = heads = secs = 0;
46d4767d 4797 translation = BIOS_ATA_TRANSLATION_AUTO;
c4b1fcc0 4798
268a362c
AL		 4799 for (i = 0; i < MAX_NODES; i++) {
4800 node_mem[i] = 0;
4801 node_cpumask[i] = 0;
4802 }
4803
268a362c 4804 nb_numa_nodes = 0;
7c9d8e07 4805 nb_nics = 0;
3b46e624 4806
26a5f13b 4807 tb_size = 0;
41bd639b
BS		 4808 autostart= 1;
4809
292444cb
AL		 4810 /* first pass of option parsing */
4811 optind = 1;
4812 while (optind < argc) {
4813 if (argv[optind][0] != '-') {
4814 /* disk image */
4815 continue;
4816 } else {
4817 const QEMUOption *popt;
4818
4819 popt = lookup_opt(argc, argv, &optarg, &optind);
4820 switch (popt->index) {
4821 case QEMU_OPTION_nodefconfig:
4822 defconfig=0;
4823 break;
4824 }
4825 }
4826 }
4827
4828 if (defconfig) {
4829 FILE *fp;
4830 fp = fopen(CONFIG_QEMU_CONFDIR "/qemu.conf", "r");
4831 if (fp) {
4832 if (qemu_config_parse(fp) != 0) {
4833 exit(1);
4834 }
4835 fclose(fp);
4836 }
4837
4838 fp = fopen(CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf", "r");
4839 if (fp) {
4840 if (qemu_config_parse(fp) != 0) {
4841 exit(1);
4842 }
4843 fclose(fp);
4844 }
4845 }
4846
4847 /* second pass of option parsing */
cd6f1169 4848 optind = 1;
0824d6fc 4849 for(;;) {
cd6f1169 4850 if (optind >= argc)
0824d6fc 4851 break;
6530a97b 4852 if (argv[optind][0] != '-') {
9dfd7c7a 4853 hda_opts = drive_add(argv[optind++], HD_ALIAS, 0);
cd6f1169
FB		 4854 } else {
4855 const QEMUOption *popt;
4856
6530a97b 4857 popt = lookup_opt(argc, argv, &optarg, &optind);
cd6f1169 4858 switch(popt->index) {
cc1daa40
FB		 4859 case QEMU_OPTION_M:
4860 machine = find_machine(optarg);
4861 if (!machine) {
4862 QEMUMachine *m;
4863 printf("Supported machines are:\n");
4864 for(m = first_machine; m != NULL; m = m->next) {
3f6599e6
MM		 4865 if (m->alias)
4866 printf("%-10s %s (alias of %s)\n",
4867 m->alias, m->desc, m->name);
cc1daa40 4868 printf("%-10s %s%s\n",
5fafdf24 4869 m->name, m->desc,
0c257437 4870 m->is_default ? " (default)" : "");
cc1daa40 4871 }
15f82208 4872 exit(*optarg != '?');
cc1daa40
FB		 4873 }
4874 break;
94fc95cd
JM		 4875 case QEMU_OPTION_cpu:
4876 /* hw initialization will check this */
15f82208 4877 if (*optarg == '?') {
c732abe2
JM		 4878/* XXX: implement xxx_cpu_list for targets that still miss it */
4879#if defined(cpu_list)
4880 cpu_list(stdout, &fprintf);
94fc95cd 4881#endif
15f82208 4882 exit(0);
94fc95cd
JM		 4883 } else {
4884 cpu_model = optarg;
4885 }
4886 break;
cd6f1169 4887 case QEMU_OPTION_initrd:
fc01f7e7
FB		 4888 initrd_filename = optarg;
4889 break;
cd6f1169 4890 case QEMU_OPTION_hda:
e4bcb14c 4891 if (cyls == 0)
9dfd7c7a 4892 hda_opts = drive_add(optarg, HD_ALIAS, 0);
e4bcb14c 4893 else
9dfd7c7a 4894 hda_opts = drive_add(optarg, HD_ALIAS
e4bcb14c 4895 ",cyls=%d,heads=%d,secs=%d%s",
609497ab 4896 0, cyls, heads, secs,
e4bcb14c
TS		 4897 translation == BIOS_ATA_TRANSLATION_LBA ?
4898 ",trans=lba" :
4899 translation == BIOS_ATA_TRANSLATION_NONE ?
4900 ",trans=none" : "");
4901 break;
cd6f1169 4902 case QEMU_OPTION_hdb:
cc1daa40
FB		 4903 case QEMU_OPTION_hdc:
4904 case QEMU_OPTION_hdd:
609497ab 4905 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
fc01f7e7 4906 break;
e4bcb14c 4907 case QEMU_OPTION_drive:
609497ab 4908 drive_add(NULL, "%s", optarg);
e4bcb14c 4909 break;
d058fe03
GH		 4910 case QEMU_OPTION_set:
4911 if (qemu_set_option(optarg) != 0)
4912 exit(1);
4913 break;
d0fef6fb
GH		 4914 case QEMU_OPTION_global:
4915 if (qemu_global_option(optarg) != 0)
4916 exit(1);
4917 break;
3e3d5815 4918 case QEMU_OPTION_mtdblock:
609497ab 4919 drive_add(optarg, MTD_ALIAS);
3e3d5815 4920 break;
a1bb27b1 4921 case QEMU_OPTION_sd:
609497ab 4922 drive_add(optarg, SD_ALIAS);
a1bb27b1 4923 break;
86f55663 4924 case QEMU_OPTION_pflash:
609497ab 4925 drive_add(optarg, PFLASH_ALIAS);
86f55663 4926 break;
cd6f1169 4927 case QEMU_OPTION_snapshot:
33e3963e
FB		 4928 snapshot = 1;
4929 break;
cd6f1169 4930 case QEMU_OPTION_hdachs:
330d0414 4931 {
330d0414
FB		 4932 const char *p;
4933 p = optarg;
4934 cyls = strtol(p, (char **)&p, 0);
46d4767d
FB		 4935 if (cyls < 1 || cyls > 16383)
4936 goto chs_fail;
330d0414
FB		 4937 if (*p != ',')
4938 goto chs_fail;
4939 p++;
4940 heads = strtol(p, (char **)&p, 0);
46d4767d
FB		 4941 if (heads < 1 || heads > 16)
4942 goto chs_fail;
330d0414
FB		 4943 if (*p != ',')
4944 goto chs_fail;
4945 p++;
4946 secs = strtol(p, (char **)&p, 0);
46d4767d
FB		 4947 if (secs < 1 || secs > 63)
4948 goto chs_fail;
4949 if (*p == ',') {
4950 p++;
4951 if (!strcmp(p, "none"))
4952 translation = BIOS_ATA_TRANSLATION_NONE;
4953 else if (!strcmp(p, "lba"))
4954 translation = BIOS_ATA_TRANSLATION_LBA;
4955 else if (!strcmp(p, "auto"))
4956 translation = BIOS_ATA_TRANSLATION_AUTO;
4957 else
4958 goto chs_fail;
4959 } else if (*p != '\0') {
c4b1fcc0 4960 chs_fail:
46d4767d
FB		 4961 fprintf(stderr, "qemu: invalid physical CHS format\n");
4962 exit(1);
c4b1fcc0 4963 }
9dfd7c7a
GH		 4964 if (hda_opts != NULL) {
4965 char num[16];
4966 snprintf(num, sizeof(num), "%d", cyls);
4967 qemu_opt_set(hda_opts, "cyls", num);
4968 snprintf(num, sizeof(num), "%d", heads);
4969 qemu_opt_set(hda_opts, "heads", num);
4970 snprintf(num, sizeof(num), "%d", secs);
4971 qemu_opt_set(hda_opts, "secs", num);
4972 if (translation == BIOS_ATA_TRANSLATION_LBA)
4973 qemu_opt_set(hda_opts, "trans", "lba");
4974 if (translation == BIOS_ATA_TRANSLATION_NONE)
4975 qemu_opt_set(hda_opts, "trans", "none");
4976 }
330d0414
FB		 4977 }
4978 break;
268a362c
AL		 4979 case QEMU_OPTION_numa:
4980 if (nb_numa_nodes >= MAX_NODES) {
4981 fprintf(stderr, "qemu: too many NUMA nodes\n");
4982 exit(1);
4983 }
4984 numa_add(optarg);
4985 break;
cd6f1169 4986 case QEMU_OPTION_nographic:
993fbfdb 4987 display_type = DT_NOGRAPHIC;
a20dd508 4988 break;
4d3b6f6e
AZ		 4989#ifdef CONFIG_CURSES
4990 case QEMU_OPTION_curses:
993fbfdb 4991 display_type = DT_CURSES;
4d3b6f6e
AZ		 4992 break;
4993#endif
a171fe39
AZ		 4994 case QEMU_OPTION_portrait:
4995 graphic_rotate = 1;
4996 break;
cd6f1169 4997 case QEMU_OPTION_kernel:
a20dd508
FB		 4998 kernel_filename = optarg;
4999 break;
cd6f1169 5000 case QEMU_OPTION_append:
a20dd508 5001 kernel_cmdline = optarg;
313aa567 5002 break;
cd6f1169 5003 case QEMU_OPTION_cdrom:
609497ab 5004 drive_add(optarg, CDROM_ALIAS);
36b486bb 5005 break;
cd6f1169 5006 case QEMU_OPTION_boot:
28c5af54 5007 {
ef3adf68 5008 static const char * const params[] = {
95387491 5009 "order", "once", "menu", NULL
ef3adf68
JK		 5010 };
5011 char buf[sizeof(boot_devices)];
e0f084bf 5012 char *standard_boot_devices;
ef3adf68
JK		 5013 int legacy = 0;
5014
5015 if (!strchr(optarg, '=')) {
5016 legacy = 1;
5017 pstrcpy(buf, sizeof(buf), optarg);
5018 } else if (check_params(buf, sizeof(buf), params, optarg) < 0) {
5019 fprintf(stderr,
5020 "qemu: unknown boot parameter '%s' in '%s'\n",
5021 buf, optarg);
5022 exit(1);
5023 }
5024
5025 if (legacy ||
5026 get_param_value(buf, sizeof(buf), "order", optarg)) {
5027 boot_devices_bitmap = parse_bootdevices(buf);
5028 pstrcpy(boot_devices, sizeof(boot_devices), buf);
28c5af54 5029 }
e0f084bf
JK		 5030 if (!legacy) {
5031 if (get_param_value(buf, sizeof(buf),
5032 "once", optarg)) {
5033 boot_devices_bitmap |= parse_bootdevices(buf);
5034 standard_boot_devices = qemu_strdup(boot_devices);
5035 pstrcpy(boot_devices, sizeof(boot_devices), buf);
5036 qemu_register_reset(restore_boot_devices,
5037 standard_boot_devices);
5038 }
95387491
JK		 5039 if (get_param_value(buf, sizeof(buf),
5040 "menu", optarg)) {
5041 if (!strcmp(buf, "on")) {
5042 boot_menu = 1;
5043 } else if (!strcmp(buf, "off")) {
5044 boot_menu = 0;
5045 } else {
5046 fprintf(stderr,
5047 "qemu: invalid option value '%s'\n",
5048 buf);
5049 exit(1);
5050 }
5051 }
e0f084bf 5052 }
36b486bb
FB		 5053 }
5054 break;
cd6f1169 5055 case QEMU_OPTION_fda:
cd6f1169 5056 case QEMU_OPTION_fdb:
609497ab 5057 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
c45886db 5058 break;
52ca8d6a
FB		 5059#ifdef TARGET_I386
5060 case QEMU_OPTION_no_fd_bootchk:
5061 fd_bootchk = 0;
5062 break;
5063#endif
a1ea458f
MM		 5064 case QEMU_OPTION_netdev:
5065 if (net_client_parse(&qemu_netdev_opts, optarg) == -1) {
5066 exit(1);
5067 }
5068 break;
7c9d8e07 5069 case QEMU_OPTION_net:
7f161aae 5070 if (net_client_parse(&qemu_net_opts, optarg) == -1) {
c4b1fcc0
FB		 5071 exit(1);
5072 }
702c651c 5073 break;
c7f74643
FB		 5074#ifdef CONFIG_SLIRP
5075 case QEMU_OPTION_tftp:
ad196a9d 5076 legacy_tftp_prefix = optarg;
9bf05444 5077 break;
47d5d01a 5078 case QEMU_OPTION_bootp:
ad196a9d 5079 legacy_bootp_filename = optarg;
47d5d01a 5080 break;
c94c8d64 5081#ifndef _WIN32
9d728e8c 5082 case QEMU_OPTION_smb:
0752706d
MA		 5083 if (net_slirp_smb(optarg) < 0)
5084 exit(1);
9d728e8c 5085 break;
c94c8d64 5086#endif
9bf05444 5087 case QEMU_OPTION_redir:
0752706d
MA		 5088 if (net_slirp_redir(optarg) < 0)
5089 exit(1);
9bf05444 5090 break;
c7f74643 5091#endif
dc72ac14 5092 case QEMU_OPTION_bt:
bd3c948d 5093 add_device_config(DEV_BT, optarg);
dc72ac14 5094 break;
1d14ffa9 5095#ifdef HAS_AUDIO
1d14ffa9
FB		 5096 case QEMU_OPTION_audio_help:
5097 AUD_help ();
5098 exit (0);
5099 break;
5100 case QEMU_OPTION_soundhw:
5101 select_soundhw (optarg);
5102 break;
5103#endif
cd6f1169 5104 case QEMU_OPTION_h:
15f82208 5105 help(0);
cd6f1169 5106 break;
9bd7e6d9
PB		 5107 case QEMU_OPTION_version:
5108 version();
5109 exit(0);
5110 break;
00f82b8a
AJ		 5111 case QEMU_OPTION_m: {
5112 uint64_t value;
5113 char *ptr;
5114
5115 value = strtoul(optarg, &ptr, 10);
5116 switch (*ptr) {
5117 case 0: case 'M': case 'm':
5118 value <<= 20;
5119 break;
5120 case 'G': case 'g':
5121 value <<= 30;
5122 break;
5123 default:
5124 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
cd6f1169
FB		 5125 exit(1);
5126 }
00f82b8a
AJ		 5127
5128 /* On 32-bit hosts, QEMU is limited by virtual address space */
4a1418e0 5129 if (value > (2047 << 20) && HOST_LONG_BITS == 32) {
00f82b8a
AJ		 5130 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5131 exit(1);
5132 }
c227f099 5133 if (value != (uint64_t)(ram_addr_t)value) {
00f82b8a
AJ		 5134 fprintf(stderr, "qemu: ram size too large\n");
5135 exit(1);
5136 }
5137 ram_size = value;
cd6f1169 5138 break;
00f82b8a 5139 }
cd6f1169
FB		 5140 case QEMU_OPTION_d:
5141 {
5142 int mask;
c7cd6a37 5143 const CPULogItem *item;
3b46e624 5144
cd6f1169
FB		 5145 mask = cpu_str_to_log_mask(optarg);
5146 if (!mask) {
5147 printf("Log items (comma separated):\n");
f193c797
FB		 5148 for(item = cpu_log_items; item->mask != 0; item++) {
5149 printf("%-10s %s\n", item->name, item->help);
5150 }
5151 exit(1);
cd6f1169
FB		 5152 }
5153 cpu_set_log(mask);
f193c797 5154 }
cd6f1169 5155 break;
cd6f1169 5156 case QEMU_OPTION_s:
59030a8c 5157 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
cd6f1169 5158 break;
59030a8c
AL		 5159 case QEMU_OPTION_gdb:
5160 gdbstub_dev = optarg;
cd6f1169 5161 break;
cd6f1169 5162 case QEMU_OPTION_L:
5cea8590 5163 data_dir = optarg;
cd6f1169 5164 break;
1192dad8
JM		 5165 case QEMU_OPTION_bios:
5166 bios_name = optarg;
5167 break;
1b530a6d
AJ		 5168 case QEMU_OPTION_singlestep:
5169 singlestep = 1;
5170 break;
cd6f1169 5171 case QEMU_OPTION_S:
3c07f8e8 5172 autostart = 0;
cd6f1169 5173 break;
3d11d0eb
FB		 5174 case QEMU_OPTION_k:
5175 keyboard_layout = optarg;
5176 break;
ee22c2f7
FB		 5177 case QEMU_OPTION_localtime:
5178 rtc_utc = 0;
5179 break;
3893c124 5180 case QEMU_OPTION_vga:
5181 select_vgahw (optarg);
1bfe856e 5182 break;
5824d651 5183#if defined(TARGET_PPC) || defined(TARGET_SPARC)
e9b137c2
FB		 5184 case QEMU_OPTION_g:
5185 {
5186 const char *p;
5187 int w, h, depth;
5188 p = optarg;
5189 w = strtol(p, (char **)&p, 10);
5190 if (w <= 0) {
5191 graphic_error:
5192 fprintf(stderr, "qemu: invalid resolution or depth\n");
5193 exit(1);
5194 }
5195 if (*p != 'x')
5196 goto graphic_error;
5197 p++;
5198 h = strtol(p, (char **)&p, 10);
5199 if (h <= 0)
5200 goto graphic_error;
5201 if (*p == 'x') {
5202 p++;
5203 depth = strtol(p, (char **)&p, 10);
5fafdf24 5204 if (depth != 8 && depth != 15 && depth != 16 &&
e9b137c2
FB		 5205 depth != 24 && depth != 32)
5206 goto graphic_error;
5207 } else if (*p == '\0') {
5208 depth = graphic_depth;
5209 } else {
5210 goto graphic_error;
5211 }
3b46e624 5212
e9b137c2
FB		 5213 graphic_width = w;
5214 graphic_height = h;
5215 graphic_depth = depth;
5216 }
5217 break;
5824d651 5218#endif
20d8a3ed
TS		 5219 case QEMU_OPTION_echr:
5220 {
5221 char *r;
5222 term_escape_char = strtol(optarg, &r, 0);
5223 if (r == optarg)
5224 printf("Bad argument to echr\n");
5225 break;
5226 }
82c643ff 5227 case QEMU_OPTION_monitor:
6ca5582d
GH		 5228 monitor_parse(optarg, "readline");
5229 default_monitor = 0;
5230 break;
5231 case QEMU_OPTION_qmp:
5232 monitor_parse(optarg, "control");
abdeed06 5233 default_monitor = 0;
82c643ff 5234 break;
22a0e04b
GH		 5235 case QEMU_OPTION_mon:
5236 opts = qemu_opts_parse(&qemu_mon_opts, optarg, "chardev");
5237 if (!opts) {
5238 fprintf(stderr, "parse error: %s\n", optarg);
5239 exit(1);
5240 }
5241 default_monitor = 0;
5242 break;
191bc01b
GH		 5243 case QEMU_OPTION_chardev:
5244 opts = qemu_opts_parse(&qemu_chardev_opts, optarg, "backend");
5245 if (!opts) {
5246 fprintf(stderr, "parse error: %s\n", optarg);
5247 exit(1);
5248 }
191bc01b 5249 break;
82c643ff 5250 case QEMU_OPTION_serial:
998bbd74
GH		 5251 add_device_config(DEV_SERIAL, optarg);
5252 default_serial = 0;
82c643ff 5253 break;
9dd986cc 5254 case QEMU_OPTION_watchdog:
09aaa160
MA		 5255 if (watchdog) {
5256 fprintf(stderr,
5257 "qemu: only one watchdog option may be given\n");
5258 return 1;
5259 }
5260 watchdog = optarg;
9dd986cc
RJ		 5261 break;
5262 case QEMU_OPTION_watchdog_action:
5263 if (select_watchdog_action(optarg) == -1) {
5264 fprintf(stderr, "Unknown -watchdog-action parameter\n");
5265 exit(1);
5266 }
5267 break;
51ecf136 5268 case QEMU_OPTION_virtiocon:
aee1b935
GH		 5269 add_device_config(DEV_VIRTCON, optarg);
5270 default_virtcon = 0;
51ecf136 5271 break;
6508fe59 5272 case QEMU_OPTION_parallel:
6a5e8b0e
GH		 5273 add_device_config(DEV_PARALLEL, optarg);
5274 default_parallel = 0;
6508fe59 5275 break;
c9f398e5
PA		 5276 case QEMU_OPTION_debugcon:
5277 add_device_config(DEV_DEBUGCON, optarg);
5278 break;
d63d307f
FB		 5279 case QEMU_OPTION_loadvm:
5280 loadvm = optarg;
5281 break;
5282 case QEMU_OPTION_full_screen:
5283 full_screen = 1;
5284 break;
667accab 5285#ifdef CONFIG_SDL
43523e93
TS		 5286 case QEMU_OPTION_no_frame:
5287 no_frame = 1;
5288 break;
3780e197
TS		 5289 case QEMU_OPTION_alt_grab:
5290 alt_grab = 1;
5291 break;
0ca9f8a4
DK		 5292 case QEMU_OPTION_ctrl_grab:
5293 ctrl_grab = 1;
5294 break;
667accab
TS		 5295 case QEMU_OPTION_no_quit:
5296 no_quit = 1;
5297 break;
7d957bd8 5298 case QEMU_OPTION_sdl:
993fbfdb 5299 display_type = DT_SDL;
7d957bd8 5300 break;
667accab 5301#endif
f7cce898 5302 case QEMU_OPTION_pidfile:
93815bc2 5303 pid_file = optarg;
f7cce898 5304 break;
a09db21f
FB		 5305#ifdef TARGET_I386
5306 case QEMU_OPTION_win2k_hack:
5307 win2k_install_hack = 1;
5308 break;
73822ec8
AL		 5309 case QEMU_OPTION_rtc_td_hack:
5310 rtc_td_hack = 1;
5311 break;
8a92ea2f
AL		 5312 case QEMU_OPTION_acpitable:
5313 if(acpi_table_add(optarg) < 0) {
5314 fprintf(stderr, "Wrong acpi table provided\n");
5315 exit(1);
5316 }
5317 break;
b6f6e3d3
AL		 5318 case QEMU_OPTION_smbios:
5319 if(smbios_entry_add(optarg) < 0) {
5320 fprintf(stderr, "Wrong smbios provided\n");
5321 exit(1);
5322 }
5323 break;
a09db21f 5324#endif
7ba1e619
AL		 5325#ifdef CONFIG_KVM
5326 case QEMU_OPTION_enable_kvm:
5327 kvm_allowed = 1;
7ba1e619 5328 break;
d993e026 5329#endif
bb36d470
FB		 5330 case QEMU_OPTION_usb:
5331 usb_enabled = 1;
5332 break;
a594cfbf
FB		 5333 case QEMU_OPTION_usbdevice:
5334 usb_enabled = 1;
bd3c948d
GH		 5335 add_device_config(DEV_USB, optarg);
5336 break;
5337 case QEMU_OPTION_device:
b386becf 5338 if (!qemu_opts_parse(&qemu_device_opts, optarg, "driver")) {
f31d07d1
GH		 5339 exit(1);
5340 }
a594cfbf 5341 break;
6a00d601 5342 case QEMU_OPTION_smp:
dc6b1c09 5343 smp_parse(optarg);
b2097003 5344 if (smp_cpus < 1) {
6a00d601
FB		 5345 fprintf(stderr, "Invalid number of CPUs\n");
5346 exit(1);
5347 }
6be68d7e
JS		 5348 if (max_cpus < smp_cpus) {
5349 fprintf(stderr, "maxcpus must be equal to or greater than "
5350 "smp\n");
5351 exit(1);
5352 }
5353 if (max_cpus > 255) {
5354 fprintf(stderr, "Unsupported number of maxcpus\n");
5355 exit(1);
5356 }
6a00d601 5357 break;
24236869 5358 case QEMU_OPTION_vnc:
993fbfdb 5359 display_type = DT_VNC;
73fc9742 5360 vnc_display = optarg;
24236869 5361 break;
5824d651 5362#ifdef TARGET_I386
6515b203
FB		 5363 case QEMU_OPTION_no_acpi:
5364 acpi_enabled = 0;
5365 break;
16b29ae1
AL		 5366 case QEMU_OPTION_no_hpet:
5367 no_hpet = 1;
5368 break;
7d4c3d53
MA		 5369 case QEMU_OPTION_balloon:
5370 if (balloon_parse(optarg) < 0) {
5371 fprintf(stderr, "Unknown -balloon argument %s\n", optarg);
5372 exit(1);
5373 }
df97b920 5374 break;
5824d651 5375#endif
d1beab82
FB		 5376 case QEMU_OPTION_no_reboot:
5377 no_reboot = 1;
5378 break;
b2f76161
AJ		 5379 case QEMU_OPTION_no_shutdown:
5380 no_shutdown = 1;
5381 break;
9467cd46
AZ		 5382 case QEMU_OPTION_show_cursor:
5383 cursor_hide = 0;
5384 break;
8fcb1b90
BS		 5385 case QEMU_OPTION_uuid:
5386 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5387 fprintf(stderr, "Fail to parse UUID string."
5388 " Wrong format.\n");
5389 exit(1);
5390 }
5391 break;
5824d651 5392#ifndef _WIN32
71e3ceb8
TS		 5393 case QEMU_OPTION_daemonize:
5394 daemonize = 1;
5395 break;
5824d651 5396#endif
9ae02555
TS		 5397 case QEMU_OPTION_option_rom:
5398 if (nb_option_roms >= MAX_OPTION_ROMS) {
5399 fprintf(stderr, "Too many option ROMs\n");
5400 exit(1);
5401 }
5402 option_rom[nb_option_roms] = optarg;
5403 nb_option_roms++;
5404 break;
5824d651 5405#if defined(TARGET_ARM) || defined(TARGET_M68K)
8e71621f
PB		 5406 case QEMU_OPTION_semihosting:
5407 semihosting_enabled = 1;
5408 break;
5824d651 5409#endif
c35734b2 5410 case QEMU_OPTION_name:
1889465a
AK		 5411 qemu_name = qemu_strdup(optarg);
5412 {
5413 char *p = strchr(qemu_name, ',');
5414 if (p != NULL) {
5415 *p++ = 0;
5416 if (strncmp(p, "process=", 8)) {
5417 fprintf(stderr, "Unknown subargument %s to -name", p);
5418 exit(1);
5419 }
5420 p += 8;
5421 set_proc_name(p);
5422 }
5423 }
c35734b2 5424 break;
95efd11c 5425#if defined(TARGET_SPARC) || defined(TARGET_PPC)
66508601
BS		 5426 case QEMU_OPTION_prom_env:
5427 if (nb_prom_envs >= MAX_PROM_ENVS) {
5428 fprintf(stderr, "Too many prom variables\n");
5429 exit(1);
5430 }
5431 prom_envs[nb_prom_envs] = optarg;
5432 nb_prom_envs++;
5433 break;
2b8f2d41
AZ		 5434#endif
5435#ifdef TARGET_ARM
5436 case QEMU_OPTION_old_param:
5437 old_param = 1;
05ebd537 5438 break;
66508601 5439#endif
f3dcfada
TS		 5440 case QEMU_OPTION_clock:
5441 configure_alarms(optarg);
5442 break;
7e0af5d0 5443 case QEMU_OPTION_startdate:
1ed2fc1f
JK		 5444 configure_rtc_date_offset(optarg, 1);
5445 break;
5446 case QEMU_OPTION_rtc:
5447 opts = qemu_opts_parse(&qemu_rtc_opts, optarg, NULL);
5448 if (!opts) {
5449 fprintf(stderr, "parse error: %s\n", optarg);
5450 exit(1);
7e0af5d0 5451 }
1ed2fc1f 5452 configure_rtc(opts);
7e0af5d0 5453 break;
26a5f13b
FB		 5454 case QEMU_OPTION_tb_size:
5455 tb_size = strtol(optarg, NULL, 0);
5456 if (tb_size < 0)
5457 tb_size = 0;
5458 break;
2e70f6ef
PB		 5459 case QEMU_OPTION_icount:
5460 use_icount = 1;
5461 if (strcmp(optarg, "auto") == 0) {
5462 icount_time_shift = -1;
5463 } else {
5464 icount_time_shift = strtol(optarg, NULL, 0);
5465 }
5466 break;
5bb7910a
AL		 5467 case QEMU_OPTION_incoming:
5468 incoming = optarg;
5469 break;
d8c208dd
GH		 5470 case QEMU_OPTION_nodefaults:
5471 default_serial = 0;
5472 default_parallel = 0;
aee1b935 5473 default_virtcon = 0;
d8c208dd
GH		 5474 default_monitor = 0;
5475 default_vga = 0;
cb4522cc 5476 default_net = 0;
ac33f8fa
GH		 5477 default_floppy = 0;
5478 default_cdrom = 0;
5479 default_sdcard = 0;
d8c208dd 5480 break;
5824d651 5481#ifndef _WIN32
0858532e
AL		 5482 case QEMU_OPTION_chroot:
5483 chroot_dir = optarg;
5484 break;
5485 case QEMU_OPTION_runas:
5486 run_as = optarg;
5487 break;
e37630ca
AL		 5488#endif
5489#ifdef CONFIG_XEN
5490 case QEMU_OPTION_xen_domid:
5491 xen_domid = atoi(optarg);
5492 break;
5493 case QEMU_OPTION_xen_create:
5494 xen_mode = XEN_CREATE;
5495 break;
5496 case QEMU_OPTION_xen_attach:
5497 xen_mode = XEN_ATTACH;
5498 break;
5824d651 5499#endif
715a664a
GH		 5500 case QEMU_OPTION_readconfig:
5501 {
5502 FILE *fp;
5503 fp = fopen(optarg, "r");
5504 if (fp == NULL) {
5505 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5506 exit(1);
5507 }
5508 if (qemu_config_parse(fp) != 0) {
5509 exit(1);
5510 }
5511 fclose(fp);
5512 break;
5513 }
5514 case QEMU_OPTION_writeconfig:
5515 {
5516 FILE *fp;
5517 if (strcmp(optarg, "-") == 0) {
5518 fp = stdout;
5519 } else {
5520 fp = fopen(optarg, "w");
5521 if (fp == NULL) {
5522 fprintf(stderr, "open %s: %s\n", optarg, strerror(errno));
5523 exit(1);
5524 }
5525 }
5526 qemu_config_write(fp);
5527 fclose(fp);
5528 break;
5529 }
cd6f1169 5530 }
0824d6fc
FB		 5531 }
5532 }
330d0414 5533
5cea8590
PB		 5534 /* If no data_dir is specified then try to find it relative to the
5535 executable path. */
5536 if (!data_dir) {
5537 data_dir = find_datadir(argv[0]);
5538 }
5539 /* If all else fails use the install patch specified when building. */
5540 if (!data_dir) {
5541 data_dir = CONFIG_QEMU_SHAREDIR;
5542 }
5543
6be68d7e
JS		 5544 /*
5545 * Default to max_cpus = smp_cpus, in case the user doesn't
5546 * specify a max_cpus value.
5547 */
5548 if (!max_cpus)
5549 max_cpus = smp_cpus;
5550
3d878caa 5551 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
b2097003
AL		 5552 if (smp_cpus > machine->max_cpus) {
5553 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5554 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5555 machine->max_cpus);
5556 exit(1);
5557 }
5558
998bbd74 5559 qemu_opts_foreach(&qemu_device_opts, default_driver_check, NULL, 0);
d8bcbabf 5560 qemu_opts_foreach(&qemu_global_opts, default_driver_check, NULL, 0);
998bbd74 5561
986c5f78
GH		 5562 if (machine->no_serial) {
5563 default_serial = 0;
5564 }
5565 if (machine->no_parallel) {
5566 default_parallel = 0;
5567 }
5568 if (!machine->use_virtcon) {
5569 default_virtcon = 0;
5570 }
5571 if (machine->no_vga) {
5572 default_vga = 0;
5573 }
ac33f8fa
GH		 5574 if (machine->no_floppy) {
5575 default_floppy = 0;
5576 }
5577 if (machine->no_cdrom) {
5578 default_cdrom = 0;
5579 }
5580 if (machine->no_sdcard) {
5581 default_sdcard = 0;
5582 }
986c5f78 5583
993fbfdb 5584 if (display_type == DT_NOGRAPHIC) {
6a5e8b0e
GH		 5585 if (default_parallel)
5586 add_device_config(DEV_PARALLEL, "null");
e1c09175
GH		 5587 if (default_serial && default_monitor) {
5588 add_device_config(DEV_SERIAL, "mon:stdio");
986c5f78
GH		 5589 } else if (default_virtcon && default_monitor) {
5590 add_device_config(DEV_VIRTCON, "mon:stdio");
e1c09175
GH		 5591 } else {
5592 if (default_serial)
5593 add_device_config(DEV_SERIAL, "stdio");
986c5f78
GH		 5594 if (default_virtcon)
5595 add_device_config(DEV_VIRTCON, "stdio");
e1c09175 5596 if (default_monitor)
6ca5582d 5597 monitor_parse("stdio", "readline");
e1c09175 5598 }
998bbd74
GH		 5599 } else {
5600 if (default_serial)
5601 add_device_config(DEV_SERIAL, "vc:80Cx24C");
6a5e8b0e
GH		 5602 if (default_parallel)
5603 add_device_config(DEV_PARALLEL, "vc:80Cx24C");
abdeed06 5604 if (default_monitor)
6ca5582d 5605 monitor_parse("vc:80Cx24C", "readline");
38536da1
AG		 5606 if (default_virtcon)
5607 add_device_config(DEV_VIRTCON, "vc:80Cx24C");
bc0129d9 5608 }
64465297
GH		 5609 if (default_vga)
5610 vga_interface_type = VGA_CIRRUS;
bc0129d9 5611
1a688d3b
GH		 5612 if (qemu_opts_foreach(&qemu_chardev_opts, chardev_init_func, NULL, 1) != 0)
5613 exit(1);
5614
71e3ceb8 5615#ifndef _WIN32
71e3ceb8
TS		 5616 if (daemonize) {
5617 pid_t pid;
5618
5619 if (pipe(fds) == -1)
5620 exit(1);
5621
5622 pid = fork();
5623 if (pid > 0) {
5624 uint8_t status;
5625 ssize_t len;
5626
5627 close(fds[1]);
5628
5629 again:
93815bc2
TS		 5630 len = read(fds[0], &status, 1);
5631 if (len == -1 && (errno == EINTR))
5632 goto again;
5633
5634 if (len != 1)
5635 exit(1);
5636 else if (status == 1) {
850810d0 5637 fprintf(stderr, "Could not acquire pidfile: %s\n", strerror(errno));
93815bc2
TS		 5638 exit(1);
5639 } else
5640 exit(0);
71e3ceb8 5641 } else if (pid < 0)
93815bc2 5642 exit(1);
71e3ceb8 5643
40ff6d7e
KW		 5644 close(fds[0]);
5645 qemu_set_cloexec(fds[1]);
5646
71e3ceb8
TS		 5647 setsid();
5648
5649 pid = fork();
5650 if (pid > 0)
5651 exit(0);
5652 else if (pid < 0)
5653 exit(1);
5654
5655 umask(027);
71e3ceb8
TS		 5656
5657 signal(SIGTSTP, SIG_IGN);
5658 signal(SIGTTOU, SIG_IGN);
5659 signal(SIGTTIN, SIG_IGN);
5660 }
099fe236 5661#endif
71e3ceb8 5662
aa26bb2d 5663 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
099fe236 5664#ifndef _WIN32
93815bc2
TS		 5665 if (daemonize) {
5666 uint8_t status = 1;
dc330e28
KS		 5667 if (write(fds[1], &status, 1) != 1) {
5668 perror("daemonize. Writing to pipe\n");
5669 }
93815bc2 5670 } else
099fe236 5671#endif
850810d0 5672 fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno));
93815bc2
TS		 5673 exit(1);
5674 }
5675
214910a7
MT		 5676 if (kvm_enabled()) {
5677 int ret;
5678
5679 ret = kvm_init(smp_cpus);
5680 if (ret < 0) {
5681 fprintf(stderr, "failed to initialize KVM\n");
5682 exit(1);
5683 }
5684 }
5685
3fcf7b6b
AL		 5686 if (qemu_init_main_loop()) {
5687 fprintf(stderr, "qemu_init_main_loop failed\n");
5688 exit(1);
5689 }
a20dd508 5690 linux_boot = (kernel_filename != NULL);
6c41b272 5691
f8d39c01
TS		 5692 if (!linux_boot && *kernel_cmdline != '\0') {
5693 fprintf(stderr, "-append only allowed with -kernel option\n");
5694 exit(1);
5695 }
5696
5697 if (!linux_boot && initrd_filename != NULL) {
5698 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5699 exit(1);
5700 }
5701
bf65f53f
FN		 5702#ifndef _WIN32
5703 /* Win32 doesn't support line-buffering and requires size >= 2 */
b118d61e 5704 setvbuf(stdout, NULL, _IOLBF, 0);
bf65f53f 5705#endif
3b46e624 5706
7183b4b4
AL		 5707 if (init_timer_alarm() < 0) {
5708 fprintf(stderr, "could not initialize alarm timer\n");
5709 exit(1);
5710 }
2e70f6ef
PB		 5711 if (use_icount && icount_time_shift < 0) {
5712 use_icount = 2;
5713 /* 125MIPS seems a reasonable initial guess at the guest speed.
5714 It will be corrected fairly quickly anyway. */
5715 icount_time_shift = 3;
5716 init_icount_adjust();
5717 }
634fce96 5718
fd1dff4b
FB		 5719#ifdef _WIN32
5720 socket_init();
5721#endif
5722
dc1c9fe8
MM		 5723 if (net_init_clients() < 0) {
5724 exit(1);
702c651c 5725 }
f1510b2c 5726
406c8df3
GC		 5727 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5728 net_set_boot_mask(net_boot);
5729
dc72ac14 5730 /* init the bluetooth world */
bd3c948d
GH		 5731 if (foreach_device_config(DEV_BT, bt_parse))
5732 exit(1);
dc72ac14 5733
0824d6fc 5734 /* init the memory */
94a6b54f
PB		 5735 if (ram_size == 0)
5736 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
9ae02555 5737
26a5f13b
FB		 5738 /* init the dynamic translator */
5739 cpu_exec_init_all(tb_size * 1024 * 1024);
5740
eb852011 5741 bdrv_init_with_whitelist();
c4b1fcc0 5742
c163b5ca 5743 blk_mig_init();
5744
ac33f8fa 5745 if (default_cdrom) {
aa40fc9c
GH		 5746 /* we always create the cdrom drive, even if no disk is there */
5747 drive_add(NULL, CDROM_ALIAS);
ac33f8fa 5748 }
c4b1fcc0 5749
ac33f8fa 5750 if (default_floppy) {
aa40fc9c
GH		 5751 /* we always create at least one floppy */
5752 drive_add(NULL, FD_ALIAS, 0);
ac33f8fa 5753 }
86f55663 5754
ac33f8fa 5755 if (default_sdcard) {
aa40fc9c
GH		 5756 /* we always create one sd slot, even if no card is in it */
5757 drive_add(NULL, SD_ALIAS);
5758 }
9d413d1d 5759
e4bcb14c 5760 /* open the virtual block devices */
9dfd7c7a 5761 if (snapshot)
7282a033
GH		 5762 qemu_opts_foreach(&qemu_drive_opts, drive_enable_snapshot, NULL, 0);
5763 if (qemu_opts_foreach(&qemu_drive_opts, drive_init_func, machine, 1) != 0)
9dfd7c7a 5764 exit(1);
3e3d5815 5765
2faf58cd 5766 vmstate_register(0, &vmstate_timers ,&timers_state);
c163b5ca 5767 register_savevm_live("ram", 0, 3, NULL, ram_save_live, NULL,
5768 ram_load, NULL);
8a7ddc38 5769
268a362c
AL		 5770 if (nb_numa_nodes > 0) {
5771 int i;
5772
5773 if (nb_numa_nodes > smp_cpus) {
5774 nb_numa_nodes = smp_cpus;
5775 }
5776
5777 /* If no memory size if given for any node, assume the default case
5778 * and distribute the available memory equally across all nodes
5779 */
5780 for (i = 0; i < nb_numa_nodes; i++) {
5781 if (node_mem[i] != 0)
5782 break;
5783 }
5784 if (i == nb_numa_nodes) {
5785 uint64_t usedmem = 0;
5786
5787 /* On Linux, the each node's border has to be 8MB aligned,
5788 * the final node gets the rest.
5789 */
5790 for (i = 0; i < nb_numa_nodes - 1; i++) {
5791 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5792 usedmem += node_mem[i];
5793 }
5794 node_mem[i] = ram_size - usedmem;
5795 }
5796
5797 for (i = 0; i < nb_numa_nodes; i++) {
5798 if (node_cpumask[i] != 0)
5799 break;
5800 }
5801 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5802 * must cope with this anyway, because there are BIOSes out there in
5803 * real machines which also use this scheme.
5804 */
5805 if (i == nb_numa_nodes) {
5806 for (i = 0; i < smp_cpus; i++) {
5807 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5808 }
5809 }
5810 }
5811
998bbd74
GH		 5812 if (foreach_device_config(DEV_SERIAL, serial_parse) < 0)
5813 exit(1);
6a5e8b0e
GH		 5814 if (foreach_device_config(DEV_PARALLEL, parallel_parse) < 0)
5815 exit(1);
aee1b935
GH		 5816 if (foreach_device_config(DEV_VIRTCON, virtcon_parse) < 0)
5817 exit(1);
c9f398e5
PA		 5818 if (foreach_device_config(DEV_DEBUGCON, debugcon_parse) < 0)
5819 exit(1);
2796dae0 5820
aae9460e
PB		 5821 module_call_init(MODULE_INIT_DEVICE);
5822
09aaa160
MA		 5823 if (watchdog) {
5824 i = select_watchdog(watchdog);
5825 if (i > 0)
5826 exit (i == 1 ? 1 : 0);
5827 }
5828
b6b61144 5829 if (machine->compat_props) {
458fb679 5830 qdev_prop_register_global_list(machine->compat_props);
b6b61144 5831 }
d0fef6fb
GH		 5832 qemu_add_globals();
5833
fbe1b595 5834 machine->init(ram_size, boot_devices,
3023f332
AL		 5835 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5836
268a362c 5837
67b3b71d
JQ		 5838#ifndef _WIN32
5839 /* must be after terminal init, SDL library changes signal handlers */
5840 sighandler_setup();
5841#endif
5842
268a362c
AL		 5843 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5844 for (i = 0; i < nb_numa_nodes; i++) {
5845 if (node_cpumask[i] & (1 << env->cpu_index)) {
5846 env->numa_node = i;
5847 }
5848 }
5849 }
5850
6f338c34
AL		 5851 current_machine = machine;
5852
3023f332
AL		 5853 /* init USB devices */
5854 if (usb_enabled) {
0752706d
MA		 5855 if (foreach_device_config(DEV_USB, usb_parse) < 0)
5856 exit(1);
3023f332
AL		 5857 }
5858
bd3c948d 5859 /* init generic devices */
f31d07d1 5860 if (qemu_opts_foreach(&qemu_device_opts, device_init_func, NULL, 1) != 0)
bd3c948d
GH		 5861 exit(1);
5862
8f391ab4
AL		 5863 if (!display_state)
5864 dumb_display_init();
3023f332
AL		 5865 /* just use the first displaystate for the moment */
5866 ds = display_state;
993fbfdb
AL		 5867
5868 if (display_type == DT_DEFAULT) {
5869#if defined(CONFIG_SDL) || defined(CONFIG_COCOA)
5870 display_type = DT_SDL;
5871#else
5872 display_type = DT_VNC;
5873 vnc_display = "localhost:0,to=99";
5874 show_vnc_port = 1;
5875#endif
5876 }
5877
5878
5879 switch (display_type) {
5880 case DT_NOGRAPHIC:
5881 break;
4d3b6f6e 5882#if defined(CONFIG_CURSES)
993fbfdb
AL		 5883 case DT_CURSES:
5884 curses_display_init(ds, full_screen);
5885 break;
4d3b6f6e 5886#endif
5b0753e0 5887#if defined(CONFIG_SDL)
993fbfdb
AL		 5888 case DT_SDL:
5889 sdl_display_init(ds, full_screen, no_frame);
5890 break;
5b0753e0 5891#elif defined(CONFIG_COCOA)
993fbfdb
AL		 5892 case DT_SDL:
5893 cocoa_display_init(ds, full_screen);
5894 break;
313aa567 5895#endif
993fbfdb
AL		 5896 case DT_VNC:
5897 vnc_display_init(ds);
5898 if (vnc_display_open(ds, vnc_display) < 0)
5899 exit(1);
f92f8afe 5900
993fbfdb
AL		 5901 if (show_vnc_port) {
5902 printf("VNC server running on `%s'\n", vnc_display_local_addr(ds));
f92f8afe 5903 }
993fbfdb
AL		 5904 break;
5905 default:
5906 break;
313aa567 5907 }
7d957bd8 5908 dpy_resize(ds);
5b08fc10 5909
3023f332
AL		 5910 dcl = ds->listeners;
5911 while (dcl != NULL) {
5912 if (dcl->dpy_refresh != NULL) {
5913 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5914 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
20d8a3ed 5915 }
3023f332 5916 dcl = dcl->next;
20d8a3ed 5917 }
3023f332 5918
993fbfdb 5919 if (display_type == DT_NOGRAPHIC || display_type == DT_VNC) {
9043b62d
BS		 5920 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5921 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5922 }
5923
2796dae0
AL		 5924 text_consoles_set_display(display_state);
5925
88589343
GH		 5926 if (qemu_opts_foreach(&qemu_mon_opts, mon_init_func, NULL, 1) != 0)
5927 exit(1);
82c643ff 5928
59030a8c
AL		 5929 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
5930 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
5931 gdbstub_dev);
5932 exit(1);
45669e00 5933 }
45669e00 5934
3418bd25
GH		 5935 qdev_machine_creation_done();
5936
15ff7705
GH		 5937 if (rom_load_all() != 0) {
5938 fprintf(stderr, "rom loading failed\n");
5939 exit(1);
5940 }
45a50b16 5941
504c2948 5942 qemu_system_reset();
05f2401e
JQ		 5943 if (loadvm) {
5944 if (load_vmstate(cur_mon, loadvm) < 0) {
5945 autostart = 0;
5946 }
5947 }
d63d307f 5948
2bb8c10c 5949 if (incoming) {
5bb7910a 5950 qemu_start_incoming_migration(incoming);
6b99dadc 5951 } else if (autostart) {
c0f4ce77 5952 vm_start();
6b99dadc 5953 }
ffd843bc 5954
b9e82a59 5955#ifndef _WIN32
71e3ceb8
TS		 5956 if (daemonize) {
5957 uint8_t status = 0;
5958 ssize_t len;
71e3ceb8
TS		 5959
5960 again1:
5961 len = write(fds[1], &status, 1);
5962 if (len == -1 && (errno == EINTR))
5963 goto again1;
5964
5965 if (len != 1)
5966 exit(1);
5967
dc330e28
KS		 5968 if (chdir("/")) {
5969 perror("not able to chdir to /");
5970 exit(1);
5971 }
40ff6d7e 5972 TFR(fd = qemu_open("/dev/null", O_RDWR));
71e3ceb8
TS		 5973 if (fd == -1)
5974 exit(1);
0858532e 5975 }
71e3ceb8 5976
0858532e
AL		 5977 if (run_as) {
5978 pwd = getpwnam(run_as);
5979 if (!pwd) {
5980 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
5981 exit(1);
5982 }
5983 }
5984
5985 if (chroot_dir) {
5986 if (chroot(chroot_dir) < 0) {
5987 fprintf(stderr, "chroot failed\n");
5988 exit(1);
5989 }
dc330e28
KS		 5990 if (chdir("/")) {
5991 perror("not able to chdir to /");
5992 exit(1);
5993 }
0858532e
AL		 5994 }
5995
5996 if (run_as) {
5997 if (setgid(pwd->pw_gid) < 0) {
5998 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
5999 exit(1);
6000 }
6001 if (setuid(pwd->pw_uid) < 0) {
6002 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6003 exit(1);
6004 }
6005 if (setuid(0) != -1) {
6006 fprintf(stderr, "Dropping privileges failed\n");
6007 exit(1);
6008 }
6009 }
0858532e
AL		 6010
6011 if (daemonize) {
6012 dup2(fd, 0);
6013 dup2(fd, 1);
6014 dup2(fd, 2);
71e3ceb8 6015
0858532e 6016 close(fd);
71e3ceb8 6017 }
b9e82a59 6018#endif
71e3ceb8 6019
8a7ddc38 6020 main_loop();
40c3bac3 6021 quit_timers();
63a01ef8 6022 net_cleanup();
b46a8906 6023
0824d6fc
FB		 6024 return 0;
6025}
Qemu copy for testing