4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
34 #include <sys/times.h>
39 #include <sys/ioctl.h>
40 #include <sys/socket.h>
48 #include <linux/if_tun.h>
51 #include <linux/rtc.h>
55 #if defined(CONFIG_SLIRP)
61 #include <sys/timeb.h>
63 #define getopt_long_only getopt_long
64 #define memalign(align, size) malloc(size)
71 #endif /* CONFIG_SDL */
79 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
81 //#define DEBUG_UNUSED_IOPORT
82 //#define DEBUG_IOPORT
84 #if !defined(CONFIG_SOFTMMU)
85 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
87 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
91 #define DEFAULT_RAM_SIZE 144
93 #define DEFAULT_RAM_SIZE 128
96 #define GUI_REFRESH_INTERVAL 30
98 /* XXX: use a two level table to limit memory usage */
99 #define MAX_IOPORTS 65536
101 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
102 char phys_ram_file[1024];
103 CPUState *global_env;
104 CPUState *cpu_single_env;
105 void *ioport_opaque[MAX_IOPORTS];
106 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
107 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
108 BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
111 static DisplayState display_state;
113 int64_t ticks_per_sec;
114 int boot_device = 'c';
116 static char network_script[1024];
117 int pit_min_timer_count = 0;
119 NetDriverState nd_table[MAX_NICS];
120 QEMUTimer *gui_timer;
122 int audio_enabled = 0;
124 int prep_enabled = 0;
126 int cirrus_vga_enabled = 1;
127 int graphic_width = 800;
128 int graphic_height = 600;
129 int graphic_depth = 15;
130 TextConsole *vga_console;
131 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
133 /***********************************************************/
134 /* x86 ISA bus support */
136 target_phys_addr_t isa_mem_base = 0;
138 uint32_t default_ioport_readb(void *opaque, uint32_t address)
140 #ifdef DEBUG_UNUSED_IOPORT
141 fprintf(stderr, "inb: port=0x%04x\n", address);
146 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
148 #ifdef DEBUG_UNUSED_IOPORT
149 fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
153 /* default is to make two byte accesses */
154 uint32_t default_ioport_readw(void *opaque, uint32_t address)
157 data = ioport_read_table[0][address](ioport_opaque[address], address);
158 address = (address + 1) & (MAX_IOPORTS - 1);
159 data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
163 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
165 ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
166 address = (address + 1) & (MAX_IOPORTS - 1);
167 ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
170 uint32_t default_ioport_readl(void *opaque, uint32_t address)
172 #ifdef DEBUG_UNUSED_IOPORT
173 fprintf(stderr, "inl: port=0x%04x\n", address);
178 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
180 #ifdef DEBUG_UNUSED_IOPORT
181 fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
185 void init_ioports(void)
189 for(i = 0; i < MAX_IOPORTS; i++) {
190 ioport_read_table[0][i] = default_ioport_readb;
191 ioport_write_table[0][i] = default_ioport_writeb;
192 ioport_read_table[1][i] = default_ioport_readw;
193 ioport_write_table[1][i] = default_ioport_writew;
194 ioport_read_table[2][i] = default_ioport_readl;
195 ioport_write_table[2][i] = default_ioport_writel;
199 /* size is the word size in byte */
200 int register_ioport_read(int start, int length, int size,
201 IOPortReadFunc *func, void *opaque)
207 } else if (size == 2) {
209 } else if (size == 4) {
212 hw_error("register_ioport_read: invalid size");
215 for(i = start; i < start + length; i += size) {
216 ioport_read_table[bsize][i] = func;
217 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
218 hw_error("register_ioport_read: invalid opaque");
219 ioport_opaque[i] = opaque;
224 /* size is the word size in byte */
225 int register_ioport_write(int start, int length, int size,
226 IOPortWriteFunc *func, void *opaque)
232 } else if (size == 2) {
234 } else if (size == 4) {
237 hw_error("register_ioport_write: invalid size");
240 for(i = start; i < start + length; i += size) {
241 ioport_write_table[bsize][i] = func;
242 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
243 hw_error("register_ioport_read: invalid opaque");
244 ioport_opaque[i] = opaque;
249 void isa_unassign_ioport(int start, int length)
253 for(i = start; i < start + length; i++) {
254 ioport_read_table[0][i] = default_ioport_readb;
255 ioport_read_table[1][i] = default_ioport_readw;
256 ioport_read_table[2][i] = default_ioport_readl;
258 ioport_write_table[0][i] = default_ioport_writeb;
259 ioport_write_table[1][i] = default_ioport_writew;
260 ioport_write_table[2][i] = default_ioport_writel;
264 void pstrcpy(char *buf, int buf_size, const char *str)
274 if (c == 0 || q >= buf + buf_size - 1)
281 /* strcat and truncate. */
282 char *pstrcat(char *buf, int buf_size, const char *s)
287 pstrcpy(buf + len, buf_size - len, s);
291 int strstart(const char *str, const char *val, const char **ptr)
307 /* return the size or -1 if error */
308 int get_image_size(const char *filename)
311 fd = open(filename, O_RDONLY | O_BINARY);
314 size = lseek(fd, 0, SEEK_END);
319 /* return the size or -1 if error */
320 int load_image(const char *filename, uint8_t *addr)
323 fd = open(filename, O_RDONLY | O_BINARY);
326 size = lseek(fd, 0, SEEK_END);
327 lseek(fd, 0, SEEK_SET);
328 if (read(fd, addr, size) != size) {
336 void cpu_outb(CPUState *env, int addr, int val)
339 if (loglevel & CPU_LOG_IOPORT)
340 fprintf(logfile, "outb: %04x %02x\n", addr, val);
342 ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
345 void cpu_outw(CPUState *env, int addr, int val)
348 if (loglevel & CPU_LOG_IOPORT)
349 fprintf(logfile, "outw: %04x %04x\n", addr, val);
351 ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
354 void cpu_outl(CPUState *env, int addr, int val)
357 if (loglevel & CPU_LOG_IOPORT)
358 fprintf(logfile, "outl: %04x %08x\n", addr, val);
360 ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
363 int cpu_inb(CPUState *env, int addr)
366 val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
368 if (loglevel & CPU_LOG_IOPORT)
369 fprintf(logfile, "inb : %04x %02x\n", addr, val);
374 int cpu_inw(CPUState *env, int addr)
377 val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
379 if (loglevel & CPU_LOG_IOPORT)
380 fprintf(logfile, "inw : %04x %04x\n", addr, val);
385 int cpu_inl(CPUState *env, int addr)
388 val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
390 if (loglevel & CPU_LOG_IOPORT)
391 fprintf(logfile, "inl : %04x %08x\n", addr, val);
396 /***********************************************************/
397 void hw_error(const char *fmt, ...)
402 fprintf(stderr, "qemu: hardware error: ");
403 vfprintf(stderr, fmt, ap);
404 fprintf(stderr, "\n");
406 cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
408 cpu_dump_state(global_env, stderr, 0);
414 /***********************************************************/
417 static QEMUPutKBDEvent *qemu_put_kbd_event;
418 static void *qemu_put_kbd_event_opaque;
419 static QEMUPutMouseEvent *qemu_put_mouse_event;
420 static void *qemu_put_mouse_event_opaque;
422 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
424 qemu_put_kbd_event_opaque = opaque;
425 qemu_put_kbd_event = func;
428 void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque)
430 qemu_put_mouse_event_opaque = opaque;
431 qemu_put_mouse_event = func;
434 void kbd_put_keycode(int keycode)
436 if (qemu_put_kbd_event) {
437 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
441 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
443 if (qemu_put_mouse_event) {
444 qemu_put_mouse_event(qemu_put_mouse_event_opaque,
445 dx, dy, dz, buttons_state);
449 /***********************************************************/
452 #if defined(__powerpc__)
454 static inline uint32_t get_tbl(void)
457 asm volatile("mftb %0" : "=r" (tbl));
461 static inline uint32_t get_tbu(void)
464 asm volatile("mftbu %0" : "=r" (tbl));
468 int64_t cpu_get_real_ticks(void)
471 /* NOTE: we test if wrapping has occurred */
477 return ((int64_t)h << 32) | l;
480 #elif defined(__i386__)
482 int64_t cpu_get_real_ticks(void)
485 asm volatile ("rdtsc" : "=A" (val));
489 #elif defined(__x86_64__)
491 int64_t cpu_get_real_ticks(void)
495 asm volatile("rdtsc" : "=a" (low), "=d" (high));
503 #error unsupported CPU
506 static int64_t cpu_ticks_offset;
507 static int cpu_ticks_enabled;
509 static inline int64_t cpu_get_ticks(void)
511 if (!cpu_ticks_enabled) {
512 return cpu_ticks_offset;
514 return cpu_get_real_ticks() + cpu_ticks_offset;
518 /* enable cpu_get_ticks() */
519 void cpu_enable_ticks(void)
521 if (!cpu_ticks_enabled) {
522 cpu_ticks_offset -= cpu_get_real_ticks();
523 cpu_ticks_enabled = 1;
527 /* disable cpu_get_ticks() : the clock is stopped. You must not call
528 cpu_get_ticks() after that. */
529 void cpu_disable_ticks(void)
531 if (cpu_ticks_enabled) {
532 cpu_ticks_offset = cpu_get_ticks();
533 cpu_ticks_enabled = 0;
537 static int64_t get_clock(void)
542 return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
545 gettimeofday(&tv, NULL);
546 return tv.tv_sec * 1000000LL + tv.tv_usec;
550 void cpu_calibrate_ticks(void)
555 ticks = cpu_get_real_ticks();
561 usec = get_clock() - usec;
562 ticks = cpu_get_real_ticks() - ticks;
563 ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
566 /* compute with 96 bit intermediate result: (a*b)/c */
567 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
572 #ifdef WORDS_BIGENDIAN
582 rl = (uint64_t)u.l.low * (uint64_t)b;
583 rh = (uint64_t)u.l.high * (uint64_t)b;
586 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
590 #define QEMU_TIMER_REALTIME 0
591 #define QEMU_TIMER_VIRTUAL 1
595 /* XXX: add frequency */
603 struct QEMUTimer *next;
609 static QEMUTimer *active_timers[2];
611 static MMRESULT timerID;
613 /* frequency of the times() clock tick */
614 static int timer_freq;
617 QEMUClock *qemu_new_clock(int type)
620 clock = qemu_mallocz(sizeof(QEMUClock));
627 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
631 ts = qemu_mallocz(sizeof(QEMUTimer));
638 void qemu_free_timer(QEMUTimer *ts)
643 /* stop a timer, but do not dealloc it */
644 void qemu_del_timer(QEMUTimer *ts)
648 /* NOTE: this code must be signal safe because
649 qemu_timer_expired() can be called from a signal. */
650 pt = &active_timers[ts->clock->type];
663 /* modify the current timer so that it will be fired when current_time
664 >= expire_time. The corresponding callback will be called. */
665 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
671 /* add the timer in the sorted list */
672 /* NOTE: this code must be signal safe because
673 qemu_timer_expired() can be called from a signal. */
674 pt = &active_timers[ts->clock->type];
679 if (t->expire_time > expire_time)
683 ts->expire_time = expire_time;
688 int qemu_timer_pending(QEMUTimer *ts)
691 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
698 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
702 return (timer_head->expire_time <= current_time);
705 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
711 if (ts->expire_time > current_time)
713 /* remove timer from the list before calling the callback */
714 *ptimer_head = ts->next;
717 /* run the callback (the timer list can be modified) */
722 int64_t qemu_get_clock(QEMUClock *clock)
724 switch(clock->type) {
725 case QEMU_TIMER_REALTIME:
727 return GetTickCount();
732 /* Note that using gettimeofday() is not a good solution
733 for timers because its value change when the date is
735 if (timer_freq == 100) {
736 return times(&tp) * 10;
738 return ((int64_t)times(&tp) * 1000) / timer_freq;
743 case QEMU_TIMER_VIRTUAL:
744 return cpu_get_ticks();
749 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
751 uint64_t expire_time;
753 if (qemu_timer_pending(ts)) {
754 expire_time = ts->expire_time;
758 qemu_put_be64(f, expire_time);
761 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
763 uint64_t expire_time;
765 expire_time = qemu_get_be64(f);
766 if (expire_time != -1) {
767 qemu_mod_timer(ts, expire_time);
773 static void timer_save(QEMUFile *f, void *opaque)
775 if (cpu_ticks_enabled) {
776 hw_error("cannot save state if virtual timers are running");
778 qemu_put_be64s(f, &cpu_ticks_offset);
779 qemu_put_be64s(f, &ticks_per_sec);
782 static int timer_load(QEMUFile *f, void *opaque, int version_id)
786 if (cpu_ticks_enabled) {
789 qemu_get_be64s(f, &cpu_ticks_offset);
790 qemu_get_be64s(f, &ticks_per_sec);
795 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
796 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
798 static void host_alarm_handler(int host_signum)
802 #define DISP_FREQ 1000
804 static int64_t delta_min = INT64_MAX;
805 static int64_t delta_max, delta_cum, last_clock, delta, ti;
807 ti = qemu_get_clock(vm_clock);
808 if (last_clock != 0) {
809 delta = ti - last_clock;
810 if (delta < delta_min)
812 if (delta > delta_max)
815 if (++count == DISP_FREQ) {
816 printf("timer: min=%lld us max=%lld us avg=%lld us avg_freq=%0.3f Hz\n",
817 muldiv64(delta_min, 1000000, ticks_per_sec),
818 muldiv64(delta_max, 1000000, ticks_per_sec),
819 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
820 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
822 delta_min = INT64_MAX;
830 if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
831 qemu_get_clock(vm_clock)) ||
832 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
833 qemu_get_clock(rt_clock))) {
834 /* stop the cpu because a timer occured */
835 cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
841 #if defined(__linux__)
843 #define RTC_FREQ 1024
847 static int start_rtc_timer(void)
849 rtc_fd = open("/dev/rtc", O_RDONLY);
852 if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
853 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
854 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
855 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
858 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
863 pit_min_timer_count = PIT_FREQ / RTC_FREQ;
869 static int start_rtc_timer(void)
874 #endif /* !defined(__linux__) */
876 #endif /* !defined(_WIN32) */
878 static void init_timers(void)
880 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
881 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
886 timerID = timeSetEvent(10, // interval (ms)
888 host_alarm_handler, // function
889 (DWORD)&count, // user parameter
890 TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
892 perror("failed timer alarm");
896 pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
899 struct sigaction act;
900 struct itimerval itv;
902 /* get times() syscall frequency */
903 timer_freq = sysconf(_SC_CLK_TCK);
906 sigfillset(&act.sa_mask);
908 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
909 act.sa_flags |= SA_ONSTACK;
911 act.sa_handler = host_alarm_handler;
912 sigaction(SIGALRM, &act, NULL);
914 itv.it_interval.tv_sec = 0;
915 itv.it_interval.tv_usec = 1000;
916 itv.it_value.tv_sec = 0;
917 itv.it_value.tv_usec = 10 * 1000;
918 setitimer(ITIMER_REAL, &itv, NULL);
919 /* we probe the tick duration of the kernel to inform the user if
920 the emulated kernel requested a too high timer frequency */
921 getitimer(ITIMER_REAL, &itv);
923 #if defined(__linux__)
924 if (itv.it_interval.tv_usec > 1000) {
925 /* try to use /dev/rtc to have a faster timer */
926 if (start_rtc_timer() < 0)
929 itv.it_interval.tv_sec = 0;
930 itv.it_interval.tv_usec = 0;
931 itv.it_value.tv_sec = 0;
932 itv.it_value.tv_usec = 0;
933 setitimer(ITIMER_REAL, &itv, NULL);
936 sigaction(SIGIO, &act, NULL);
937 fcntl(rtc_fd, F_SETFL, O_ASYNC);
938 fcntl(rtc_fd, F_SETOWN, getpid());
940 #endif /* defined(__linux__) */
943 pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
950 void quit_timers(void)
953 timeKillEvent(timerID);
957 /***********************************************************/
958 /* character device */
960 int qemu_chr_write(CharDriverState *s, const uint8_t *buf, int len)
962 return s->chr_write(s, buf, len);
965 void qemu_chr_printf(CharDriverState *s, const char *fmt, ...)
970 vsnprintf(buf, sizeof(buf), fmt, ap);
971 qemu_chr_write(s, buf, strlen(buf));
975 void qemu_chr_send_event(CharDriverState *s, int event)
977 if (s->chr_send_event)
978 s->chr_send_event(s, event);
981 void qemu_chr_add_read_handler(CharDriverState *s,
982 IOCanRWHandler *fd_can_read,
983 IOReadHandler *fd_read, void *opaque)
985 s->chr_add_read_handler(s, fd_can_read, fd_read, opaque);
988 void qemu_chr_add_event_handler(CharDriverState *s, IOEventHandler *chr_event)
990 s->chr_event = chr_event;
993 static int null_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
998 static void null_chr_add_read_handler(CharDriverState *chr,
999 IOCanRWHandler *fd_can_read,
1000 IOReadHandler *fd_read, void *opaque)
1004 CharDriverState *qemu_chr_open_null(void)
1006 CharDriverState *chr;
1008 chr = qemu_mallocz(sizeof(CharDriverState));
1011 chr->chr_write = null_chr_write;
1012 chr->chr_add_read_handler = null_chr_add_read_handler;
1020 /* for nographic stdio only */
1021 IOCanRWHandler *fd_can_read;
1022 IOReadHandler *fd_read;
1026 #define STDIO_MAX_CLIENTS 2
1028 static int stdio_nb_clients;
1029 static CharDriverState *stdio_clients[STDIO_MAX_CLIENTS];
1031 static int fd_chr_write(CharDriverState *chr, const uint8_t *buf, int len)
1033 FDCharDriver *s = chr->opaque;
1034 return write(s->fd_out, buf, len);
1037 static void fd_chr_add_read_handler(CharDriverState *chr,
1038 IOCanRWHandler *fd_can_read,
1039 IOReadHandler *fd_read, void *opaque)
1041 FDCharDriver *s = chr->opaque;
1043 if (nographic && s->fd_in == 0) {
1044 s->fd_can_read = fd_can_read;
1045 s->fd_read = fd_read;
1046 s->fd_opaque = opaque;
1048 qemu_add_fd_read_handler(s->fd_in, fd_can_read, fd_read, opaque);
1052 /* open a character device to a unix fd */
1053 CharDriverState *qemu_chr_open_fd(int fd_in, int fd_out)
1055 CharDriverState *chr;
1058 chr = qemu_mallocz(sizeof(CharDriverState));
1061 s = qemu_mallocz(sizeof(FDCharDriver));
1069 chr->chr_write = fd_chr_write;
1070 chr->chr_add_read_handler = fd_chr_add_read_handler;
1074 /* for STDIO, we handle the case where several clients use it
1077 #define TERM_ESCAPE 0x01 /* ctrl-a is used for escape */
1079 static int term_got_escape, client_index;
1081 void term_print_help(void)
1084 "C-a h print this help\n"
1085 "C-a x exit emulator\n"
1086 "C-a s save disk data back to file (if -snapshot)\n"
1087 "C-a b send break (magic sysrq)\n"
1088 "C-a c switch between console and monitor\n"
1089 "C-a C-a send C-a\n"
1093 /* called when a char is received */
1094 static void stdio_received_byte(int ch)
1096 if (term_got_escape) {
1097 term_got_escape = 0;
1108 for (i = 0; i < MAX_DISKS; i++) {
1110 bdrv_commit(bs_table[i]);
1115 if (client_index < stdio_nb_clients) {
1116 CharDriverState *chr;
1119 chr = stdio_clients[client_index];
1121 chr->chr_event(s->fd_opaque, CHR_EVENT_BREAK);
1126 if (client_index >= stdio_nb_clients)
1128 if (client_index == 0) {
1129 /* send a new line in the monitor to get the prompt */
1137 } else if (ch == TERM_ESCAPE) {
1138 term_got_escape = 1;
1141 if (client_index < stdio_nb_clients) {
1143 CharDriverState *chr;
1146 chr = stdio_clients[client_index];
1149 /* XXX: should queue the char if the device is not
1151 if (s->fd_can_read(s->fd_opaque) > 0)
1152 s->fd_read(s->fd_opaque, buf, 1);
1157 static int stdio_can_read(void *opaque)
1159 /* XXX: not strictly correct */
1163 static void stdio_read(void *opaque, const uint8_t *buf, int size)
1166 for(i = 0; i < size; i++)
1167 stdio_received_byte(buf[i]);
1170 /* init terminal so that we can grab keys */
1171 static struct termios oldtty;
1172 static int old_fd0_flags;
1174 static void term_exit(void)
1176 tcsetattr (0, TCSANOW, &oldtty);
1177 fcntl(0, F_SETFL, old_fd0_flags);
1180 static void term_init(void)
1184 tcgetattr (0, &tty);
1186 old_fd0_flags = fcntl(0, F_GETFL);
1188 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1189 |INLCR|IGNCR|ICRNL|IXON);
1190 tty.c_oflag |= OPOST;
1191 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1192 /* if graphical mode, we allow Ctrl-C handling */
1194 tty.c_lflag &= ~ISIG;
1195 tty.c_cflag &= ~(CSIZE|PARENB);
1198 tty.c_cc[VTIME] = 0;
1200 tcsetattr (0, TCSANOW, &tty);
1204 fcntl(0, F_SETFL, O_NONBLOCK);
1207 CharDriverState *qemu_chr_open_stdio(void)
1209 CharDriverState *chr;
1212 if (stdio_nb_clients >= STDIO_MAX_CLIENTS)
1214 chr = qemu_chr_open_fd(0, 1);
1215 if (stdio_nb_clients == 0)
1216 qemu_add_fd_read_handler(0, stdio_can_read, stdio_read, NULL);
1217 client_index = stdio_nb_clients;
1219 if (stdio_nb_clients != 0)
1221 chr = qemu_chr_open_fd(0, 1);
1223 stdio_clients[stdio_nb_clients++] = chr;
1224 if (stdio_nb_clients == 1) {
1225 /* set the terminal in raw mode */
1231 #if defined(__linux__)
1232 CharDriverState *qemu_chr_open_pty(void)
1234 char slave_name[1024];
1235 int master_fd, slave_fd;
1237 /* Not satisfying */
1238 if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
1241 fprintf(stderr, "char device redirected to %s\n", slave_name);
1242 return qemu_chr_open_fd(master_fd, master_fd);
1245 CharDriverState *qemu_chr_open_pty(void)
1251 #endif /* !defined(_WIN32) */
1253 CharDriverState *qemu_chr_open(const char *filename)
1255 if (!strcmp(filename, "vc")) {
1256 return text_console_init(&display_state);
1257 } else if (!strcmp(filename, "null")) {
1258 return qemu_chr_open_null();
1261 if (!strcmp(filename, "pty")) {
1262 return qemu_chr_open_pty();
1263 } else if (!strcmp(filename, "stdio")) {
1264 return qemu_chr_open_stdio();
1272 /***********************************************************/
1273 /* Linux network device redirectors */
1275 void hex_dump(FILE *f, const uint8_t *buf, int size)
1279 for(i=0;i<size;i+=16) {
1283 fprintf(f, "%08x ", i);
1286 fprintf(f, " %02x", buf[i+j]);
1291 for(j=0;j<len;j++) {
1293 if (c < ' ' || c > '~')
1295 fprintf(f, "%c", c);
1301 void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1303 nd->send_packet(nd, buf, size);
1306 void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
1307 IOReadHandler *fd_read, void *opaque)
1309 nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
1312 /* dummy network adapter */
1314 static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1318 static void dummy_add_read_packet(NetDriverState *nd,
1319 IOCanRWHandler *fd_can_read,
1320 IOReadHandler *fd_read, void *opaque)
1324 static int net_dummy_init(NetDriverState *nd)
1326 nd->send_packet = dummy_send_packet;
1327 nd->add_read_packet = dummy_add_read_packet;
1328 pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
1332 #if defined(CONFIG_SLIRP)
1334 /* slirp network adapter */
1336 static void *slirp_fd_opaque;
1337 static IOCanRWHandler *slirp_fd_can_read;
1338 static IOReadHandler *slirp_fd_read;
1339 static int slirp_inited;
1341 int slirp_can_output(void)
1343 return slirp_fd_can_read(slirp_fd_opaque);
1346 void slirp_output(const uint8_t *pkt, int pkt_len)
1349 printf("output:\n");
1350 hex_dump(stdout, pkt, pkt_len);
1352 slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
1355 static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1359 hex_dump(stdout, buf, size);
1361 slirp_input(buf, size);
1364 static void slirp_add_read_packet(NetDriverState *nd,
1365 IOCanRWHandler *fd_can_read,
1366 IOReadHandler *fd_read, void *opaque)
1368 slirp_fd_opaque = opaque;
1369 slirp_fd_can_read = fd_can_read;
1370 slirp_fd_read = fd_read;
1373 static int net_slirp_init(NetDriverState *nd)
1375 if (!slirp_inited) {
1379 nd->send_packet = slirp_send_packet;
1380 nd->add_read_packet = slirp_add_read_packet;
1381 pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
1385 #endif /* CONFIG_SLIRP */
1387 #if !defined(_WIN32)
1389 static int tun_open(char *ifname, int ifname_size)
1395 fd = open("/dev/tap", O_RDWR);
1397 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1402 dev = devname(s.st_rdev, S_IFCHR);
1403 pstrcpy(ifname, ifname_size, dev);
1405 fcntl(fd, F_SETFL, O_NONBLOCK);
1409 static int tun_open(char *ifname, int ifname_size)
1414 fd = open("/dev/net/tun", O_RDWR);
1416 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1419 memset(&ifr, 0, sizeof(ifr));
1420 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1421 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
1422 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1424 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1428 printf("Connected to host network interface: %s\n", ifr.ifr_name);
1429 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1430 fcntl(fd, F_SETFL, O_NONBLOCK);
1435 static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1437 write(nd->fd, buf, size);
1440 static void tun_add_read_packet(NetDriverState *nd,
1441 IOCanRWHandler *fd_can_read,
1442 IOReadHandler *fd_read, void *opaque)
1444 qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
1447 static int net_tun_init(NetDriverState *nd)
1453 nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
1457 /* try to launch network init script */
1462 *parg++ = network_script;
1463 *parg++ = nd->ifname;
1465 execv(network_script, args);
1468 while (waitpid(pid, &status, 0) != pid);
1469 if (!WIFEXITED(status) ||
1470 WEXITSTATUS(status) != 0) {
1471 fprintf(stderr, "%s: could not launch network script\n",
1475 nd->send_packet = tun_send_packet;
1476 nd->add_read_packet = tun_add_read_packet;
1480 static int net_fd_init(NetDriverState *nd, int fd)
1483 nd->send_packet = tun_send_packet;
1484 nd->add_read_packet = tun_add_read_packet;
1485 pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
1489 #endif /* !_WIN32 */
1491 /***********************************************************/
1494 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
1498 static void dumb_resize(DisplayState *ds, int w, int h)
1502 static void dumb_refresh(DisplayState *ds)
1504 vga_update_display();
1507 void dumb_display_init(DisplayState *ds)
1512 ds->dpy_update = dumb_update;
1513 ds->dpy_resize = dumb_resize;
1514 ds->dpy_refresh = dumb_refresh;
1517 #if !defined(CONFIG_SOFTMMU)
1518 /***********************************************************/
1519 /* cpu signal handler */
1520 static void host_segv_handler(int host_signum, siginfo_t *info,
1523 if (cpu_signal_handler(host_signum, info, puc))
1525 if (stdio_nb_clients > 0)
1531 /***********************************************************/
1534 #define MAX_IO_HANDLERS 64
1536 typedef struct IOHandlerRecord {
1538 IOCanRWHandler *fd_can_read;
1539 IOReadHandler *fd_read;
1541 /* temporary data */
1544 struct IOHandlerRecord *next;
1547 static IOHandlerRecord *first_io_handler;
1549 int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
1550 IOReadHandler *fd_read, void *opaque)
1552 IOHandlerRecord *ioh;
1554 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1558 ioh->fd_can_read = fd_can_read;
1559 ioh->fd_read = fd_read;
1560 ioh->opaque = opaque;
1561 ioh->next = first_io_handler;
1562 first_io_handler = ioh;
1566 void qemu_del_fd_read_handler(int fd)
1568 IOHandlerRecord **pioh, *ioh;
1570 pioh = &first_io_handler;
1575 if (ioh->fd == fd) {
1583 /***********************************************************/
1584 /* savevm/loadvm support */
1586 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
1588 fwrite(buf, 1, size, f);
1591 void qemu_put_byte(QEMUFile *f, int v)
1596 void qemu_put_be16(QEMUFile *f, unsigned int v)
1598 qemu_put_byte(f, v >> 8);
1599 qemu_put_byte(f, v);
1602 void qemu_put_be32(QEMUFile *f, unsigned int v)
1604 qemu_put_byte(f, v >> 24);
1605 qemu_put_byte(f, v >> 16);
1606 qemu_put_byte(f, v >> 8);
1607 qemu_put_byte(f, v);
1610 void qemu_put_be64(QEMUFile *f, uint64_t v)
1612 qemu_put_be32(f, v >> 32);
1613 qemu_put_be32(f, v);
1616 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
1618 return fread(buf, 1, size, f);
1621 int qemu_get_byte(QEMUFile *f)
1631 unsigned int qemu_get_be16(QEMUFile *f)
1634 v = qemu_get_byte(f) << 8;
1635 v |= qemu_get_byte(f);
1639 unsigned int qemu_get_be32(QEMUFile *f)
1642 v = qemu_get_byte(f) << 24;
1643 v |= qemu_get_byte(f) << 16;
1644 v |= qemu_get_byte(f) << 8;
1645 v |= qemu_get_byte(f);
1649 uint64_t qemu_get_be64(QEMUFile *f)
1652 v = (uint64_t)qemu_get_be32(f) << 32;
1653 v |= qemu_get_be32(f);
1657 int64_t qemu_ftell(QEMUFile *f)
1662 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
1664 if (fseek(f, pos, whence) < 0)
1669 typedef struct SaveStateEntry {
1673 SaveStateHandler *save_state;
1674 LoadStateHandler *load_state;
1676 struct SaveStateEntry *next;
1679 static SaveStateEntry *first_se;
1681 int register_savevm(const char *idstr,
1684 SaveStateHandler *save_state,
1685 LoadStateHandler *load_state,
1688 SaveStateEntry *se, **pse;
1690 se = qemu_malloc(sizeof(SaveStateEntry));
1693 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
1694 se->instance_id = instance_id;
1695 se->version_id = version_id;
1696 se->save_state = save_state;
1697 se->load_state = load_state;
1698 se->opaque = opaque;
1701 /* add at the end of list */
1703 while (*pse != NULL)
1704 pse = &(*pse)->next;
1709 #define QEMU_VM_FILE_MAGIC 0x5145564d
1710 #define QEMU_VM_FILE_VERSION 0x00000001
1712 int qemu_savevm(const char *filename)
1716 int len, len_pos, cur_pos, saved_vm_running, ret;
1718 saved_vm_running = vm_running;
1721 f = fopen(filename, "wb");
1727 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
1728 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
1730 for(se = first_se; se != NULL; se = se->next) {
1732 len = strlen(se->idstr);
1733 qemu_put_byte(f, len);
1734 qemu_put_buffer(f, se->idstr, len);
1736 qemu_put_be32(f, se->instance_id);
1737 qemu_put_be32(f, se->version_id);
1739 /* record size: filled later */
1741 qemu_put_be32(f, 0);
1743 se->save_state(f, se->opaque);
1745 /* fill record size */
1747 len = ftell(f) - len_pos - 4;
1748 fseek(f, len_pos, SEEK_SET);
1749 qemu_put_be32(f, len);
1750 fseek(f, cur_pos, SEEK_SET);
1756 if (saved_vm_running)
1761 static SaveStateEntry *find_se(const char *idstr, int instance_id)
1765 for(se = first_se; se != NULL; se = se->next) {
1766 if (!strcmp(se->idstr, idstr) &&
1767 instance_id == se->instance_id)
1773 int qemu_loadvm(const char *filename)
1777 int len, cur_pos, ret, instance_id, record_len, version_id;
1778 int saved_vm_running;
1782 saved_vm_running = vm_running;
1785 f = fopen(filename, "rb");
1791 v = qemu_get_be32(f);
1792 if (v != QEMU_VM_FILE_MAGIC)
1794 v = qemu_get_be32(f);
1795 if (v != QEMU_VM_FILE_VERSION) {
1802 #if defined (DO_TB_FLUSH)
1803 tb_flush(global_env);
1805 len = qemu_get_byte(f);
1808 qemu_get_buffer(f, idstr, len);
1810 instance_id = qemu_get_be32(f);
1811 version_id = qemu_get_be32(f);
1812 record_len = qemu_get_be32(f);
1814 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1815 idstr, instance_id, version_id, record_len);
1818 se = find_se(idstr, instance_id);
1820 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1821 instance_id, idstr);
1823 ret = se->load_state(f, se->opaque, version_id);
1825 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1826 instance_id, idstr);
1829 /* always seek to exact end of record */
1830 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
1835 if (saved_vm_running)
1840 /***********************************************************/
1841 /* cpu save/restore */
1843 #if defined(TARGET_I386)
1845 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
1847 qemu_put_be32(f, dt->selector);
1848 qemu_put_be32(f, (uint32_t)dt->base);
1849 qemu_put_be32(f, dt->limit);
1850 qemu_put_be32(f, dt->flags);
1853 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
1855 dt->selector = qemu_get_be32(f);
1856 dt->base = (uint8_t *)qemu_get_be32(f);
1857 dt->limit = qemu_get_be32(f);
1858 dt->flags = qemu_get_be32(f);
1861 void cpu_save(QEMUFile *f, void *opaque)
1863 CPUState *env = opaque;
1864 uint16_t fptag, fpus, fpuc;
1868 for(i = 0; i < 8; i++)
1869 qemu_put_be32s(f, &env->regs[i]);
1870 qemu_put_be32s(f, &env->eip);
1871 qemu_put_be32s(f, &env->eflags);
1872 qemu_put_be32s(f, &env->eflags);
1873 hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
1874 qemu_put_be32s(f, &hflags);
1878 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1880 for (i=7; i>=0; i--) {
1882 if (env->fptags[i]) {
1887 qemu_put_be16s(f, &fpuc);
1888 qemu_put_be16s(f, &fpus);
1889 qemu_put_be16s(f, &fptag);
1891 for(i = 0; i < 8; i++) {
1894 cpu_get_fp80(&mant, &exp, env->fpregs[i]);
1895 qemu_put_be64(f, mant);
1896 qemu_put_be16(f, exp);
1899 for(i = 0; i < 6; i++)
1900 cpu_put_seg(f, &env->segs[i]);
1901 cpu_put_seg(f, &env->ldt);
1902 cpu_put_seg(f, &env->tr);
1903 cpu_put_seg(f, &env->gdt);
1904 cpu_put_seg(f, &env->idt);
1906 qemu_put_be32s(f, &env->sysenter_cs);
1907 qemu_put_be32s(f, &env->sysenter_esp);
1908 qemu_put_be32s(f, &env->sysenter_eip);
1910 qemu_put_be32s(f, &env->cr[0]);
1911 qemu_put_be32s(f, &env->cr[2]);
1912 qemu_put_be32s(f, &env->cr[3]);
1913 qemu_put_be32s(f, &env->cr[4]);
1915 for(i = 0; i < 8; i++)
1916 qemu_put_be32s(f, &env->dr[i]);
1919 qemu_put_be32s(f, &env->a20_mask);
1922 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1924 CPUState *env = opaque;
1927 uint16_t fpus, fpuc, fptag;
1929 if (version_id != 2)
1931 for(i = 0; i < 8; i++)
1932 qemu_get_be32s(f, &env->regs[i]);
1933 qemu_get_be32s(f, &env->eip);
1934 qemu_get_be32s(f, &env->eflags);
1935 qemu_get_be32s(f, &env->eflags);
1936 qemu_get_be32s(f, &hflags);
1938 qemu_get_be16s(f, &fpuc);
1939 qemu_get_be16s(f, &fpus);
1940 qemu_get_be16s(f, &fptag);
1942 for(i = 0; i < 8; i++) {
1945 mant = qemu_get_be64(f);
1946 exp = qemu_get_be16(f);
1947 env->fpregs[i] = cpu_set_fp80(mant, exp);
1951 env->fpstt = (fpus >> 11) & 7;
1952 env->fpus = fpus & ~0x3800;
1953 for(i = 0; i < 8; i++) {
1954 env->fptags[i] = ((fptag & 3) == 3);
1958 for(i = 0; i < 6; i++)
1959 cpu_get_seg(f, &env->segs[i]);
1960 cpu_get_seg(f, &env->ldt);
1961 cpu_get_seg(f, &env->tr);
1962 cpu_get_seg(f, &env->gdt);
1963 cpu_get_seg(f, &env->idt);
1965 qemu_get_be32s(f, &env->sysenter_cs);
1966 qemu_get_be32s(f, &env->sysenter_esp);
1967 qemu_get_be32s(f, &env->sysenter_eip);
1969 qemu_get_be32s(f, &env->cr[0]);
1970 qemu_get_be32s(f, &env->cr[2]);
1971 qemu_get_be32s(f, &env->cr[3]);
1972 qemu_get_be32s(f, &env->cr[4]);
1974 for(i = 0; i < 8; i++)
1975 qemu_get_be32s(f, &env->dr[i]);
1978 qemu_get_be32s(f, &env->a20_mask);
1980 /* XXX: compute hflags from scratch, except for CPL and IIF */
1981 env->hflags = hflags;
1986 #elif defined(TARGET_PPC)
1987 void cpu_save(QEMUFile *f, void *opaque)
1991 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1997 #warning No CPU save/restore functions
2001 /***********************************************************/
2002 /* ram save/restore */
2004 /* we just avoid storing empty pages */
2005 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
2010 for(i = 1; i < len; i++) {
2014 qemu_put_byte(f, 1);
2015 qemu_put_byte(f, v);
2018 qemu_put_byte(f, 0);
2019 qemu_put_buffer(f, buf, len);
2022 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
2026 v = qemu_get_byte(f);
2029 if (qemu_get_buffer(f, buf, len) != len)
2033 v = qemu_get_byte(f);
2034 memset(buf, v, len);
2042 static void ram_save(QEMUFile *f, void *opaque)
2045 qemu_put_be32(f, phys_ram_size);
2046 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
2047 ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
2051 static int ram_load(QEMUFile *f, void *opaque, int version_id)
2055 if (version_id != 1)
2057 if (qemu_get_be32(f) != phys_ram_size)
2059 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
2060 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
2067 /***********************************************************/
2068 /* main execution loop */
2070 void gui_update(void *opaque)
2072 display_state.dpy_refresh(&display_state);
2073 qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
2076 /* XXX: support several handlers */
2077 VMStopHandler *vm_stop_cb;
2078 VMStopHandler *vm_stop_opaque;
2080 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
2083 vm_stop_opaque = opaque;
2087 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
2100 void vm_stop(int reason)
2103 cpu_disable_ticks();
2107 vm_stop_cb(vm_stop_opaque, reason);
2113 /* reset/shutdown handler */
2115 typedef struct QEMUResetEntry {
2116 QEMUResetHandler *func;
2118 struct QEMUResetEntry *next;
2121 static QEMUResetEntry *first_reset_entry;
2122 static int reset_requested;
2123 static int shutdown_requested;
2125 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
2127 QEMUResetEntry **pre, *re;
2129 pre = &first_reset_entry;
2130 while (*pre != NULL)
2131 pre = &(*pre)->next;
2132 re = qemu_mallocz(sizeof(QEMUResetEntry));
2134 re->opaque = opaque;
2139 void qemu_system_reset(void)
2143 /* reset all devices */
2144 for(re = first_reset_entry; re != NULL; re = re->next) {
2145 re->func(re->opaque);
2149 void qemu_system_reset_request(void)
2151 reset_requested = 1;
2152 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
2155 void qemu_system_shutdown_request(void)
2157 shutdown_requested = 1;
2158 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
2161 static void main_cpu_reset(void *opaque)
2164 CPUState *env = opaque;
2169 void main_loop_wait(int timeout)
2172 struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
2173 IOHandlerRecord *ioh, *ioh_next;
2183 /* poll any events */
2184 /* XXX: separate device handlers from system ones */
2186 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2187 if (!ioh->fd_can_read) {
2190 pf->events = POLLIN;
2194 max_size = ioh->fd_can_read(ioh->opaque);
2196 if (max_size > sizeof(buf))
2197 max_size = sizeof(buf);
2199 pf->events = POLLIN;
2206 ioh->max_size = max_size;
2209 ret = poll(ufds, pf - ufds, timeout);
2211 /* XXX: better handling of removal */
2212 for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
2213 ioh_next = ioh->next;
2216 if (pf->revents & POLLIN) {
2217 if (ioh->max_size == 0) {
2218 /* just a read event */
2219 ioh->fd_read(ioh->opaque, NULL, 0);
2221 n = read(ioh->fd, buf, ioh->max_size);
2223 ioh->fd_read(ioh->opaque, buf, n);
2224 } else if (errno != EAGAIN) {
2225 ioh->fd_read(ioh->opaque, NULL, -errno);
2232 #endif /* !defined(_WIN32) */
2233 #if defined(CONFIG_SLIRP)
2234 /* XXX: merge with poll() */
2236 fd_set rfds, wfds, xfds;
2244 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
2247 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
2249 slirp_select_poll(&rfds, &wfds, &xfds);
2255 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
2256 qemu_get_clock(vm_clock));
2258 if (audio_enabled) {
2259 /* XXX: add explicit timer */
2263 /* run dma transfers, if any */
2267 /* real time timers */
2268 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
2269 qemu_get_clock(rt_clock));
2275 CPUState *env = global_env;
2279 ret = cpu_exec(env);
2280 if (shutdown_requested) {
2281 ret = EXCP_INTERRUPT;
2284 if (reset_requested) {
2285 reset_requested = 0;
2286 qemu_system_reset();
2287 ret = EXCP_INTERRUPT;
2289 if (ret == EXCP_DEBUG) {
2290 vm_stop(EXCP_DEBUG);
2292 /* if hlt instruction, we wait until the next IRQ */
2293 /* XXX: use timeout computed from timers */
2294 if (ret == EXCP_HLT)
2301 main_loop_wait(timeout);
2303 cpu_disable_ticks();
2309 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
2310 "usage: %s [options] [disk_image]\n"
2312 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2314 "Standard options:\n"
2315 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
2316 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
2317 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
2318 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
2319 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
2320 "-snapshot write to temporary files instead of disk image files\n"
2321 "-m megs set virtual RAM size to megs MB [default=%d]\n"
2322 "-nographic disable graphical output and redirect serial I/Os to console\n"
2323 "-enable-audio enable audio support\n"
2324 "-localtime set the real time clock to local time [default=utc]\n"
2326 "-prep Simulate a PREP system (default is PowerMAC)\n"
2327 "-g WxH[xDEPTH] Set the initial VGA graphic mode\n"
2330 "Network options:\n"
2331 "-nics n simulate 'n' network cards [default=1]\n"
2332 "-macaddr addr set the mac address of the first interface\n"
2333 "-n script set tap/tun network init script [default=%s]\n"
2334 "-tun-fd fd use this fd as already opened tap/tun interface\n"
2336 "-user-net use user mode network stack [default if no tap/tun script]\n"
2337 "-tftp prefix allow tftp access to files starting with prefix [only with -user-net enabled]\n"
2339 "-dummy-net use dummy network stack\n"
2341 "Linux boot specific:\n"
2342 "-kernel bzImage use 'bzImage' as kernel image\n"
2343 "-append cmdline use 'cmdline' as kernel command line\n"
2344 "-initrd file use 'file' as initial ram disk\n"
2346 "Debug/Expert options:\n"
2347 "-monitor dev redirect the monitor to char device 'dev'\n"
2348 "-serial dev redirect the serial port to char device 'dev'\n"
2349 "-S freeze CPU at startup (use 'c' to start execution)\n"
2350 "-s wait gdb connection to port %d\n"
2351 "-p port change gdb connection port\n"
2352 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
2353 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
2354 "-L path set the directory for the BIOS and VGA BIOS\n"
2355 #ifdef USE_CODE_COPY
2356 "-no-code-copy disable code copy acceleration\n"
2359 "-isa simulate an ISA-only system (default is PCI system)\n"
2360 "-std-vga simulate a standard VGA card with VESA Bochs Extensions\n"
2361 " (default is CL-GD5446 PCI VGA)\n"
2364 "During emulation, the following keys are useful:\n"
2365 "ctrl-shift-f toggle full screen\n"
2366 "ctrl-shift-Fn switch to virtual console 'n'\n"
2367 "ctrl-shift toggle mouse and keyboard grab\n"
2369 "When using -nographic, press 'ctrl-a h' to get some help.\n"
2371 #ifdef CONFIG_SOFTMMU
2377 DEFAULT_NETWORK_SCRIPT,
2378 DEFAULT_GDBSTUB_PORT,
2380 #ifndef CONFIG_SOFTMMU
2382 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
2383 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
2389 #define HAS_ARG 0x0001
2402 QEMU_OPTION_snapshot,
2404 QEMU_OPTION_nographic,
2405 QEMU_OPTION_enable_audio,
2408 QEMU_OPTION_macaddr,
2411 QEMU_OPTION_user_net,
2413 QEMU_OPTION_dummy_net,
2425 QEMU_OPTION_no_code_copy,
2429 QEMU_OPTION_localtime,
2430 QEMU_OPTION_cirrusvga,
2432 QEMU_OPTION_std_vga,
2433 QEMU_OPTION_monitor,
2437 typedef struct QEMUOption {
2443 const QEMUOption qemu_options[] = {
2444 { "h", 0, QEMU_OPTION_h },
2446 { "fda", HAS_ARG, QEMU_OPTION_fda },
2447 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
2448 { "hda", HAS_ARG, QEMU_OPTION_hda },
2449 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
2450 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
2451 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
2452 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
2453 { "boot", HAS_ARG, QEMU_OPTION_boot },
2454 { "snapshot", 0, QEMU_OPTION_snapshot },
2455 { "m", HAS_ARG, QEMU_OPTION_m },
2456 { "nographic", 0, QEMU_OPTION_nographic },
2457 { "enable-audio", 0, QEMU_OPTION_enable_audio },
2459 { "nics", HAS_ARG, QEMU_OPTION_nics},
2460 { "macaddr", HAS_ARG, QEMU_OPTION_macaddr},
2461 { "n", HAS_ARG, QEMU_OPTION_n },
2462 { "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd },
2464 { "user-net", 0, QEMU_OPTION_user_net },
2465 { "tftp", HAS_ARG, QEMU_OPTION_tftp },
2467 { "dummy-net", 0, QEMU_OPTION_dummy_net },
2469 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
2470 { "append", HAS_ARG, QEMU_OPTION_append },
2471 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
2473 { "S", 0, QEMU_OPTION_S },
2474 { "s", 0, QEMU_OPTION_s },
2475 { "p", HAS_ARG, QEMU_OPTION_p },
2476 { "d", HAS_ARG, QEMU_OPTION_d },
2477 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
2478 { "L", HAS_ARG, QEMU_OPTION_L },
2479 { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
2481 { "prep", 0, QEMU_OPTION_prep },
2482 { "g", 1, QEMU_OPTION_g },
2484 { "localtime", 0, QEMU_OPTION_localtime },
2485 { "isa", 0, QEMU_OPTION_isa },
2486 { "std-vga", 0, QEMU_OPTION_std_vga },
2487 { "monitor", 1, QEMU_OPTION_monitor },
2488 { "serial", 1, QEMU_OPTION_serial },
2490 /* temporary options */
2491 { "pci", 0, QEMU_OPTION_pci },
2492 { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
2496 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2498 /* this stack is only used during signal handling */
2499 #define SIGNAL_STACK_SIZE 32768
2501 static uint8_t *signal_stack;
2505 /* password input */
2507 static BlockDriverState *get_bdrv(int index)
2509 BlockDriverState *bs;
2512 bs = bs_table[index];
2513 } else if (index < 6) {
2514 bs = fd_table[index - 4];
2521 static void read_passwords(void)
2523 BlockDriverState *bs;
2527 for(i = 0; i < 6; i++) {
2529 if (bs && bdrv_is_encrypted(bs)) {
2530 term_printf("%s is encrypted.\n", bdrv_get_device_name(bs));
2531 for(j = 0; j < 3; j++) {
2532 monitor_readline("Password: ",
2533 1, password, sizeof(password));
2534 if (bdrv_set_key(bs, password) == 0)
2536 term_printf("invalid password\n");
2542 #define NET_IF_TUN 0
2543 #define NET_IF_USER 1
2544 #define NET_IF_DUMMY 2
2546 int main(int argc, char **argv)
2548 #ifdef CONFIG_GDBSTUB
2549 int use_gdbstub, gdbstub_port;
2552 int snapshot, linux_boot;
2554 const char *initrd_filename;
2555 const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
2556 const char *kernel_filename, *kernel_cmdline;
2557 DisplayState *ds = &display_state;
2558 int cyls, heads, secs;
2559 int start_emulation = 1;
2561 int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
2563 const char *r, *optarg;
2564 CharDriverState *monitor_hd;
2565 char monitor_device[128];
2566 char serial_devices[MAX_SERIAL_PORTS][128];
2567 int serial_device_index;
2569 #if !defined(CONFIG_SOFTMMU)
2570 /* we never want that malloc() uses mmap() */
2571 mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
2573 initrd_filename = NULL;
2574 for(i = 0; i < MAX_FD; i++)
2575 fd_filename[i] = NULL;
2576 for(i = 0; i < MAX_DISKS; i++)
2577 hd_filename[i] = NULL;
2578 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
2579 vga_ram_size = VGA_RAM_SIZE;
2580 bios_size = BIOS_SIZE;
2581 pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
2582 #ifdef CONFIG_GDBSTUB
2584 gdbstub_port = DEFAULT_GDBSTUB_PORT;
2588 kernel_filename = NULL;
2589 kernel_cmdline = "";
2591 cyls = heads = secs = 0;
2592 pstrcpy(monitor_device, sizeof(monitor_device), "vc");
2594 pstrcpy(serial_devices[0], sizeof(serial_devices[0]), "vc");
2595 for(i = 1; i < MAX_SERIAL_PORTS; i++)
2596 serial_devices[i][0] = '\0';
2597 serial_device_index = 0;
2602 /* default mac address of the first network interface */
2616 hd_filename[0] = argv[optind++];
2618 const QEMUOption *popt;
2621 popt = qemu_options;
2624 fprintf(stderr, "%s: invalid option -- '%s'\n",
2628 if (!strcmp(popt->name, r + 1))
2632 if (popt->flags & HAS_ARG) {
2633 if (optind >= argc) {
2634 fprintf(stderr, "%s: option '%s' requires an argument\n",
2638 optarg = argv[optind++];
2643 switch(popt->index) {
2644 case QEMU_OPTION_initrd:
2645 initrd_filename = optarg;
2647 case QEMU_OPTION_hda:
2648 hd_filename[0] = optarg;
2650 case QEMU_OPTION_hdb:
2651 hd_filename[1] = optarg;
2653 case QEMU_OPTION_snapshot:
2656 case QEMU_OPTION_hdachs:
2660 cyls = strtol(p, (char **)&p, 0);
2664 heads = strtol(p, (char **)&p, 0);
2668 secs = strtol(p, (char **)&p, 0);
2675 case QEMU_OPTION_nographic:
2676 pstrcpy(monitor_device, sizeof(monitor_device), "stdio");
2677 pstrcpy(serial_devices[0], sizeof(serial_devices[0]), "stdio");
2680 case QEMU_OPTION_kernel:
2681 kernel_filename = optarg;
2683 case QEMU_OPTION_append:
2684 kernel_cmdline = optarg;
2686 case QEMU_OPTION_tun_fd:
2690 net_if_type = NET_IF_TUN;
2691 if (nb_tun_fds < MAX_NICS) {
2692 fd = strtol(optarg, (char **)&p, 0);
2694 fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
2697 tun_fds[nb_tun_fds++] = fd;
2701 case QEMU_OPTION_hdc:
2702 hd_filename[2] = optarg;
2705 case QEMU_OPTION_hdd:
2706 hd_filename[3] = optarg;
2708 case QEMU_OPTION_cdrom:
2709 hd_filename[2] = optarg;
2712 case QEMU_OPTION_boot:
2713 boot_device = optarg[0];
2714 if (boot_device != 'a' && boot_device != 'b' &&
2715 boot_device != 'c' && boot_device != 'd') {
2716 fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
2720 case QEMU_OPTION_fda:
2721 fd_filename[0] = optarg;
2723 case QEMU_OPTION_fdb:
2724 fd_filename[1] = optarg;
2726 case QEMU_OPTION_no_code_copy:
2727 code_copy_enabled = 0;
2729 case QEMU_OPTION_nics:
2730 nb_nics = atoi(optarg);
2731 if (nb_nics < 0 || nb_nics > MAX_NICS) {
2732 fprintf(stderr, "qemu: invalid number of network interfaces\n");
2736 case QEMU_OPTION_macaddr:
2741 for(i = 0; i < 6; i++) {
2742 macaddr[i] = strtol(p, (char **)&p, 16);
2749 fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
2758 case QEMU_OPTION_tftp:
2760 extern const char *tftp_prefix;
2761 tftp_prefix = optarg;
2764 case QEMU_OPTION_user_net:
2765 net_if_type = NET_IF_USER;
2768 case QEMU_OPTION_dummy_net:
2769 net_if_type = NET_IF_DUMMY;
2771 case QEMU_OPTION_enable_audio:
2778 ram_size = atoi(optarg) * 1024 * 1024;
2781 if (ram_size > PHYS_RAM_MAX_SIZE) {
2782 fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
2783 PHYS_RAM_MAX_SIZE / (1024 * 1024));
2792 mask = cpu_str_to_log_mask(optarg);
2794 printf("Log items (comma separated):\n");
2795 for(item = cpu_log_items; item->mask != 0; item++) {
2796 printf("%-10s %s\n", item->name, item->help);
2804 pstrcpy(network_script, sizeof(network_script), optarg);
2806 #ifdef CONFIG_GDBSTUB
2811 gdbstub_port = atoi(optarg);
2818 start_emulation = 0;
2820 case QEMU_OPTION_pci:
2823 case QEMU_OPTION_isa:
2826 case QEMU_OPTION_prep:
2829 case QEMU_OPTION_localtime:
2832 case QEMU_OPTION_cirrusvga:
2833 cirrus_vga_enabled = 1;
2835 case QEMU_OPTION_std_vga:
2836 cirrus_vga_enabled = 0;
2843 w = strtol(p, (char **)&p, 10);
2846 fprintf(stderr, "qemu: invalid resolution or depth\n");
2852 h = strtol(p, (char **)&p, 10);
2857 depth = strtol(p, (char **)&p, 10);
2858 if (depth != 8 && depth != 15 && depth != 16 &&
2859 depth != 24 && depth != 32)
2861 } else if (*p == '\0') {
2862 depth = graphic_depth;
2869 graphic_depth = depth;
2872 case QEMU_OPTION_monitor:
2873 pstrcpy(monitor_device, sizeof(monitor_device), optarg);
2875 case QEMU_OPTION_serial:
2876 if (serial_device_index >= MAX_SERIAL_PORTS) {
2877 fprintf(stderr, "qemu: too many serial ports\n");
2880 pstrcpy(serial_devices[serial_device_index],
2881 sizeof(serial_devices[0]), optarg);
2882 serial_device_index++;
2888 linux_boot = (kernel_filename != NULL);
2890 if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
2891 fd_filename[0] == '\0')
2894 /* boot to cd by default if no hard disk */
2895 if (hd_filename[0] == '\0' && boot_device == 'c') {
2896 if (fd_filename[0] != '\0')
2902 #if !defined(CONFIG_SOFTMMU)
2903 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2905 static uint8_t stdout_buf[4096];
2906 setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
2909 setvbuf(stdout, NULL, _IOLBF, 0);
2912 /* init host network redirectors */
2913 if (net_if_type == -1) {
2914 net_if_type = NET_IF_TUN;
2915 #if defined(CONFIG_SLIRP)
2916 if (access(network_script, R_OK) < 0) {
2917 net_if_type = NET_IF_USER;
2922 for(i = 0; i < nb_nics; i++) {
2923 NetDriverState *nd = &nd_table[i];
2925 /* init virtual mac address */
2926 nd->macaddr[0] = macaddr[0];
2927 nd->macaddr[1] = macaddr[1];
2928 nd->macaddr[2] = macaddr[2];
2929 nd->macaddr[3] = macaddr[3];
2930 nd->macaddr[4] = macaddr[4];
2931 nd->macaddr[5] = macaddr[5] + i;
2932 switch(net_if_type) {
2933 #if defined(CONFIG_SLIRP)
2938 #if !defined(_WIN32)
2940 if (i < nb_tun_fds) {
2941 net_fd_init(nd, tun_fds[i]);
2943 if (net_tun_init(nd) < 0)
2955 /* init the memory */
2956 phys_ram_size = ram_size + vga_ram_size + bios_size;
2958 #ifdef CONFIG_SOFTMMU
2960 /* mallocs are always aligned on BSD. valloc is better for correctness */
2961 phys_ram_base = valloc(phys_ram_size);
2963 phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
2965 if (!phys_ram_base) {
2966 fprintf(stderr, "Could not allocate physical memory\n");
2970 /* as we must map the same page at several addresses, we must use
2975 tmpdir = getenv("QEMU_TMPDIR");
2978 snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
2979 if (mkstemp(phys_ram_file) < 0) {
2980 fprintf(stderr, "Could not create temporary memory file '%s'\n",
2984 phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
2985 if (phys_ram_fd < 0) {
2986 fprintf(stderr, "Could not open temporary memory file '%s'\n",
2990 ftruncate(phys_ram_fd, phys_ram_size);
2991 unlink(phys_ram_file);
2992 phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
2994 PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
2996 if (phys_ram_base == MAP_FAILED) {
2997 fprintf(stderr, "Could not map physical memory\n");
3003 /* we always create the cdrom drive, even if no disk is there */
3006 bs_table[2] = bdrv_new("cdrom");
3007 bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
3010 /* open the virtual block devices */
3011 for(i = 0; i < MAX_DISKS; i++) {
3012 if (hd_filename[i]) {
3015 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
3016 bs_table[i] = bdrv_new(buf);
3018 if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
3019 fprintf(stderr, "qemu: could not open hard disk image '%s'\n",
3023 if (i == 0 && cyls != 0)
3024 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
3028 /* we always create at least one floppy disk */
3029 fd_table[0] = bdrv_new("fda");
3030 bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
3032 for(i = 0; i < MAX_FD; i++) {
3033 if (fd_filename[i]) {
3036 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
3037 fd_table[i] = bdrv_new(buf);
3038 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
3040 if (fd_filename[i] != '\0') {
3041 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
3042 fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
3050 /* init CPU state */
3053 cpu_single_env = env;
3055 register_savevm("timer", 0, 1, timer_save, timer_load, env);
3056 register_savevm("cpu", 0, 2, cpu_save, cpu_load, env);
3057 register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
3058 qemu_register_reset(main_cpu_reset, global_env);
3061 cpu_calibrate_ticks();
3065 dumb_display_init(ds);
3068 sdl_display_init(ds);
3070 dumb_display_init(ds);
3074 vga_console = graphic_console_init(ds);
3076 monitor_hd = qemu_chr_open(monitor_device);
3078 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
3081 monitor_init(monitor_hd, !nographic);
3083 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
3084 if (serial_devices[i][0] != '\0') {
3085 serial_hds[i] = qemu_chr_open(serial_devices[i]);
3086 if (!serial_hds[i]) {
3087 fprintf(stderr, "qemu: could not open serial device '%s'\n",
3091 if (!strcmp(serial_devices[i], "vc"))
3092 qemu_chr_printf(serial_hds[i], "serial%d console\n", i);
3096 /* setup cpu signal handlers for MMU / self modifying code handling */
3097 #if !defined(CONFIG_SOFTMMU)
3099 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
3102 signal_stack = memalign(16, SIGNAL_STACK_SIZE);
3103 stk.ss_sp = signal_stack;
3104 stk.ss_size = SIGNAL_STACK_SIZE;
3107 if (sigaltstack(&stk, NULL) < 0) {
3108 perror("sigaltstack");
3114 struct sigaction act;
3116 sigfillset(&act.sa_mask);
3117 act.sa_flags = SA_SIGINFO;
3118 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
3119 act.sa_flags |= SA_ONSTACK;
3121 act.sa_sigaction = host_segv_handler;
3122 sigaction(SIGSEGV, &act, NULL);
3123 sigaction(SIGBUS, &act, NULL);
3124 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
3125 sigaction(SIGFPE, &act, NULL);
3132 struct sigaction act;
3133 sigfillset(&act.sa_mask);
3135 act.sa_handler = SIG_IGN;
3136 sigaction(SIGPIPE, &act, NULL);
3141 #if defined(TARGET_I386)
3142 pc_init(ram_size, vga_ram_size, boot_device,
3143 ds, fd_filename, snapshot,
3144 kernel_filename, kernel_cmdline, initrd_filename);
3145 #elif defined(TARGET_PPC)
3146 ppc_init(ram_size, vga_ram_size, boot_device,
3147 ds, fd_filename, snapshot,
3148 kernel_filename, kernel_cmdline, initrd_filename);
3151 gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
3152 qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
3154 #ifdef CONFIG_GDBSTUB
3156 if (gdbserver_start(gdbstub_port) < 0) {
3157 fprintf(stderr, "Could not open gdbserver socket on port %d\n",
3161 printf("Waiting gdb connection on port %d\n", gdbstub_port);
3166 /* XXX: simplify init */
3168 if (start_emulation) {