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>
46 #include <linux/if_tun.h>
49 #include <linux/rtc.h>
53 #if defined(CONFIG_SLIRP)
59 #include <sys/timeb.h>
61 #define getopt_long_only getopt_long
62 #define memalign(align, size) malloc(size)
66 #if defined(__linux__)
67 /* SDL use the pthreads and they modify sigaction. We don't
69 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
70 extern void __libc_sigaction();
71 #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
73 extern void __sigaction();
74 #define sigaction(sig, act, oact) __sigaction(sig, act, oact)
76 #endif /* __linux__ */
77 #endif /* CONFIG_SDL */
85 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
87 //#define DEBUG_UNUSED_IOPORT
88 //#define DEBUG_IOPORT
90 #if !defined(CONFIG_SOFTMMU)
91 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
93 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
97 #define DEFAULT_RAM_SIZE 144
99 #define DEFAULT_RAM_SIZE 32
102 #define GUI_REFRESH_INTERVAL 30
104 /* XXX: use a two level table to limit memory usage */
105 #define MAX_IOPORTS 65536
107 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
108 char phys_ram_file[1024];
109 CPUState *global_env;
110 CPUState *cpu_single_env;
111 void *ioport_opaque[MAX_IOPORTS];
112 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
113 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
114 BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
117 static DisplayState display_state;
119 int64_t ticks_per_sec;
120 int boot_device = 'c';
122 static char network_script[1024];
123 int pit_min_timer_count = 0;
125 NetDriverState nd_table[MAX_NICS];
126 SerialState *serial_console;
127 QEMUTimer *gui_timer;
129 int audio_enabled = 0;
131 int prep_enabled = 0;
133 int cirrus_vga_enabled = 0;
134 int graphic_width = 640;
135 int graphic_height = 480;
136 int graphic_depth = 15;
138 /***********************************************************/
139 /* x86 ISA bus support */
141 target_phys_addr_t isa_mem_base = 0;
143 uint32_t default_ioport_readb(void *opaque, uint32_t address)
145 #ifdef DEBUG_UNUSED_IOPORT
146 fprintf(stderr, "inb: port=0x%04x\n", address);
151 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
153 #ifdef DEBUG_UNUSED_IOPORT
154 fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
158 /* default is to make two byte accesses */
159 uint32_t default_ioport_readw(void *opaque, uint32_t address)
162 data = ioport_read_table[0][address](ioport_opaque[address], address);
163 address = (address + 1) & (MAX_IOPORTS - 1);
164 data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
168 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
170 ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
171 address = (address + 1) & (MAX_IOPORTS - 1);
172 ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
175 uint32_t default_ioport_readl(void *opaque, uint32_t address)
177 #ifdef DEBUG_UNUSED_IOPORT
178 fprintf(stderr, "inl: port=0x%04x\n", address);
183 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
185 #ifdef DEBUG_UNUSED_IOPORT
186 fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
190 void init_ioports(void)
194 for(i = 0; i < MAX_IOPORTS; i++) {
195 ioport_read_table[0][i] = default_ioport_readb;
196 ioport_write_table[0][i] = default_ioport_writeb;
197 ioport_read_table[1][i] = default_ioport_readw;
198 ioport_write_table[1][i] = default_ioport_writew;
199 ioport_read_table[2][i] = default_ioport_readl;
200 ioport_write_table[2][i] = default_ioport_writel;
204 /* size is the word size in byte */
205 int register_ioport_read(int start, int length, int size,
206 IOPortReadFunc *func, void *opaque)
212 } else if (size == 2) {
214 } else if (size == 4) {
217 hw_error("register_ioport_read: invalid size");
220 for(i = start; i < start + length; i += size) {
221 ioport_read_table[bsize][i] = func;
222 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
223 hw_error("register_ioport_read: invalid opaque");
224 ioport_opaque[i] = opaque;
229 /* size is the word size in byte */
230 int register_ioport_write(int start, int length, int size,
231 IOPortWriteFunc *func, void *opaque)
237 } else if (size == 2) {
239 } else if (size == 4) {
242 hw_error("register_ioport_write: invalid size");
245 for(i = start; i < start + length; i += size) {
246 ioport_write_table[bsize][i] = func;
247 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
248 hw_error("register_ioport_read: invalid opaque");
249 ioport_opaque[i] = opaque;
254 void isa_unassign_ioport(int start, int length)
258 for(i = start; i < start + length; i++) {
259 ioport_read_table[0][i] = default_ioport_readb;
260 ioport_read_table[1][i] = default_ioport_readw;
261 ioport_read_table[2][i] = default_ioport_readl;
263 ioport_write_table[0][i] = default_ioport_writeb;
264 ioport_write_table[1][i] = default_ioport_writew;
265 ioport_write_table[2][i] = default_ioport_writel;
269 void pstrcpy(char *buf, int buf_size, const char *str)
279 if (c == 0 || q >= buf + buf_size - 1)
286 /* strcat and truncate. */
287 char *pstrcat(char *buf, int buf_size, const char *s)
292 pstrcpy(buf + len, buf_size - len, s);
296 /* return the size or -1 if error */
297 int get_image_size(const char *filename)
300 fd = open(filename, O_RDONLY | O_BINARY);
303 size = lseek(fd, 0, SEEK_END);
308 /* return the size or -1 if error */
309 int load_image(const char *filename, uint8_t *addr)
312 fd = open(filename, O_RDONLY | O_BINARY);
315 size = lseek(fd, 0, SEEK_END);
316 lseek(fd, 0, SEEK_SET);
317 if (read(fd, addr, size) != size) {
325 void cpu_outb(CPUState *env, int addr, int val)
328 if (loglevel & CPU_LOG_IOPORT)
329 fprintf(logfile, "outb: %04x %02x\n", addr, val);
331 ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
334 void cpu_outw(CPUState *env, int addr, int val)
337 if (loglevel & CPU_LOG_IOPORT)
338 fprintf(logfile, "outw: %04x %04x\n", addr, val);
340 ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
343 void cpu_outl(CPUState *env, int addr, int val)
346 if (loglevel & CPU_LOG_IOPORT)
347 fprintf(logfile, "outl: %04x %08x\n", addr, val);
349 ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
352 int cpu_inb(CPUState *env, int addr)
355 val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
357 if (loglevel & CPU_LOG_IOPORT)
358 fprintf(logfile, "inb : %04x %02x\n", addr, val);
363 int cpu_inw(CPUState *env, int addr)
366 val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
368 if (loglevel & CPU_LOG_IOPORT)
369 fprintf(logfile, "inw : %04x %04x\n", addr, val);
374 int cpu_inl(CPUState *env, int addr)
377 val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
379 if (loglevel & CPU_LOG_IOPORT)
380 fprintf(logfile, "inl : %04x %08x\n", addr, val);
385 /***********************************************************/
386 void hw_error(const char *fmt, ...)
391 fprintf(stderr, "qemu: hardware error: ");
392 vfprintf(stderr, fmt, ap);
393 fprintf(stderr, "\n");
395 cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
397 cpu_dump_state(global_env, stderr, 0);
403 /***********************************************************/
406 static QEMUPutKBDEvent *qemu_put_kbd_event;
407 static void *qemu_put_kbd_event_opaque;
408 static QEMUPutMouseEvent *qemu_put_mouse_event;
409 static void *qemu_put_mouse_event_opaque;
411 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
413 qemu_put_kbd_event_opaque = opaque;
414 qemu_put_kbd_event = func;
417 void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque)
419 qemu_put_mouse_event_opaque = opaque;
420 qemu_put_mouse_event = func;
423 void kbd_put_keycode(int keycode)
425 if (qemu_put_kbd_event) {
426 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
430 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
432 if (qemu_put_mouse_event) {
433 qemu_put_mouse_event(qemu_put_mouse_event_opaque,
434 dx, dy, dz, buttons_state);
438 /***********************************************************/
441 #if defined(__powerpc__)
443 static inline uint32_t get_tbl(void)
446 asm volatile("mftb %0" : "=r" (tbl));
450 static inline uint32_t get_tbu(void)
453 asm volatile("mftbu %0" : "=r" (tbl));
457 int64_t cpu_get_real_ticks(void)
460 /* NOTE: we test if wrapping has occurred */
466 return ((int64_t)h << 32) | l;
469 #elif defined(__i386__)
471 int64_t cpu_get_real_ticks(void)
474 asm volatile ("rdtsc" : "=A" (val));
478 #elif defined(__x86_64__)
480 int64_t cpu_get_real_ticks(void)
484 asm volatile("rdtsc" : "=a" (low), "=d" (high));
492 #error unsupported CPU
495 static int64_t cpu_ticks_offset;
496 static int cpu_ticks_enabled;
498 static inline int64_t cpu_get_ticks(void)
500 if (!cpu_ticks_enabled) {
501 return cpu_ticks_offset;
503 return cpu_get_real_ticks() + cpu_ticks_offset;
507 /* enable cpu_get_ticks() */
508 void cpu_enable_ticks(void)
510 if (!cpu_ticks_enabled) {
511 cpu_ticks_offset -= cpu_get_real_ticks();
512 cpu_ticks_enabled = 1;
516 /* disable cpu_get_ticks() : the clock is stopped. You must not call
517 cpu_get_ticks() after that. */
518 void cpu_disable_ticks(void)
520 if (cpu_ticks_enabled) {
521 cpu_ticks_offset = cpu_get_ticks();
522 cpu_ticks_enabled = 0;
526 static int64_t get_clock(void)
531 return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
534 gettimeofday(&tv, NULL);
535 return tv.tv_sec * 1000000LL + tv.tv_usec;
539 void cpu_calibrate_ticks(void)
544 ticks = cpu_get_real_ticks();
550 usec = get_clock() - usec;
551 ticks = cpu_get_real_ticks() - ticks;
552 ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
555 /* compute with 96 bit intermediate result: (a*b)/c */
556 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
561 #ifdef WORDS_BIGENDIAN
571 rl = (uint64_t)u.l.low * (uint64_t)b;
572 rh = (uint64_t)u.l.high * (uint64_t)b;
575 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
579 #define QEMU_TIMER_REALTIME 0
580 #define QEMU_TIMER_VIRTUAL 1
584 /* XXX: add frequency */
592 struct QEMUTimer *next;
598 static QEMUTimer *active_timers[2];
600 static MMRESULT timerID;
602 /* frequency of the times() clock tick */
603 static int timer_freq;
606 QEMUClock *qemu_new_clock(int type)
609 clock = qemu_mallocz(sizeof(QEMUClock));
616 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
620 ts = qemu_mallocz(sizeof(QEMUTimer));
627 void qemu_free_timer(QEMUTimer *ts)
632 /* stop a timer, but do not dealloc it */
633 void qemu_del_timer(QEMUTimer *ts)
637 /* NOTE: this code must be signal safe because
638 qemu_timer_expired() can be called from a signal. */
639 pt = &active_timers[ts->clock->type];
652 /* modify the current timer so that it will be fired when current_time
653 >= expire_time. The corresponding callback will be called. */
654 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
660 /* add the timer in the sorted list */
661 /* NOTE: this code must be signal safe because
662 qemu_timer_expired() can be called from a signal. */
663 pt = &active_timers[ts->clock->type];
668 if (t->expire_time > expire_time)
672 ts->expire_time = expire_time;
677 int qemu_timer_pending(QEMUTimer *ts)
680 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
687 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
691 return (timer_head->expire_time <= current_time);
694 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
700 if (ts->expire_time > current_time)
702 /* remove timer from the list before calling the callback */
703 *ptimer_head = ts->next;
706 /* run the callback (the timer list can be modified) */
711 int64_t qemu_get_clock(QEMUClock *clock)
713 switch(clock->type) {
714 case QEMU_TIMER_REALTIME:
716 return GetTickCount();
721 /* Note that using gettimeofday() is not a good solution
722 for timers because its value change when the date is
724 if (timer_freq == 100) {
725 return times(&tp) * 10;
727 return ((int64_t)times(&tp) * 1000) / timer_freq;
732 case QEMU_TIMER_VIRTUAL:
733 return cpu_get_ticks();
738 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
740 uint64_t expire_time;
742 if (qemu_timer_pending(ts)) {
743 expire_time = ts->expire_time;
747 qemu_put_be64(f, expire_time);
750 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
752 uint64_t expire_time;
754 expire_time = qemu_get_be64(f);
755 if (expire_time != -1) {
756 qemu_mod_timer(ts, expire_time);
762 static void timer_save(QEMUFile *f, void *opaque)
764 if (cpu_ticks_enabled) {
765 hw_error("cannot save state if virtual timers are running");
767 qemu_put_be64s(f, &cpu_ticks_offset);
768 qemu_put_be64s(f, &ticks_per_sec);
771 static int timer_load(QEMUFile *f, void *opaque, int version_id)
775 if (cpu_ticks_enabled) {
778 qemu_get_be64s(f, &cpu_ticks_offset);
779 qemu_get_be64s(f, &ticks_per_sec);
784 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
785 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
787 static void host_alarm_handler(int host_signum)
790 if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
791 qemu_get_clock(vm_clock)) ||
792 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
793 qemu_get_clock(rt_clock))) {
794 /* stop the cpu because a timer occured */
795 cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
801 #if defined(__linux__)
803 #define RTC_FREQ 1024
807 static int start_rtc_timer(void)
809 rtc_fd = open("/dev/rtc", O_RDONLY);
812 if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
813 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
814 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
815 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
818 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
823 pit_min_timer_count = PIT_FREQ / RTC_FREQ;
829 static int start_rtc_timer(void)
834 #endif /* !defined(__linux__) */
836 #endif /* !defined(_WIN32) */
838 static void init_timers(void)
840 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
841 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
846 timerID = timeSetEvent(10, // interval (ms)
848 host_alarm_handler, // function
849 (DWORD)&count, // user parameter
850 TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
852 perror("failed timer alarm");
856 pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
859 struct sigaction act;
860 struct itimerval itv;
862 /* get times() syscall frequency */
863 timer_freq = sysconf(_SC_CLK_TCK);
866 sigfillset(&act.sa_mask);
868 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
869 act.sa_flags |= SA_ONSTACK;
871 act.sa_handler = host_alarm_handler;
872 sigaction(SIGALRM, &act, NULL);
874 itv.it_interval.tv_sec = 0;
875 itv.it_interval.tv_usec = 1000;
876 itv.it_value.tv_sec = 0;
877 itv.it_value.tv_usec = 10 * 1000;
878 setitimer(ITIMER_REAL, &itv, NULL);
879 /* we probe the tick duration of the kernel to inform the user if
880 the emulated kernel requested a too high timer frequency */
881 getitimer(ITIMER_REAL, &itv);
883 if (itv.it_interval.tv_usec > 1000) {
884 /* try to use /dev/rtc to have a faster timer */
885 if (start_rtc_timer() < 0)
888 itv.it_interval.tv_sec = 0;
889 itv.it_interval.tv_usec = 0;
890 itv.it_value.tv_sec = 0;
891 itv.it_value.tv_usec = 0;
892 setitimer(ITIMER_REAL, &itv, NULL);
895 sigaction(SIGIO, &act, NULL);
896 fcntl(rtc_fd, F_SETFL, O_ASYNC);
897 fcntl(rtc_fd, F_SETOWN, getpid());
900 pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
907 void quit_timers(void)
910 timeKillEvent(timerID);
914 /***********************************************************/
919 int serial_open_device(void)
926 int serial_open_device(void)
928 char slave_name[1024];
929 int master_fd, slave_fd;
931 if (serial_console == NULL && nographic) {
932 /* use console for serial port */
937 if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
938 fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
941 fprintf(stderr, "Serial port redirected to %s\n", slave_name);
951 /***********************************************************/
952 /* Linux network device redirectors */
954 void hex_dump(FILE *f, const uint8_t *buf, int size)
958 for(i=0;i<size;i+=16) {
962 fprintf(f, "%08x ", i);
965 fprintf(f, " %02x", buf[i+j]);
972 if (c < ' ' || c > '~')
980 void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
982 nd->send_packet(nd, buf, size);
985 void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
986 IOReadHandler *fd_read, void *opaque)
988 nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
991 /* dummy network adapter */
993 static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
997 static void dummy_add_read_packet(NetDriverState *nd,
998 IOCanRWHandler *fd_can_read,
999 IOReadHandler *fd_read, void *opaque)
1003 static int net_dummy_init(NetDriverState *nd)
1005 nd->send_packet = dummy_send_packet;
1006 nd->add_read_packet = dummy_add_read_packet;
1007 pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
1011 #if defined(CONFIG_SLIRP)
1013 /* slirp network adapter */
1015 static void *slirp_fd_opaque;
1016 static IOCanRWHandler *slirp_fd_can_read;
1017 static IOReadHandler *slirp_fd_read;
1018 static int slirp_inited;
1020 int slirp_can_output(void)
1022 return slirp_fd_can_read(slirp_fd_opaque);
1025 void slirp_output(const uint8_t *pkt, int pkt_len)
1028 printf("output:\n");
1029 hex_dump(stdout, pkt, pkt_len);
1031 slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
1034 static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1038 hex_dump(stdout, buf, size);
1040 slirp_input(buf, size);
1043 static void slirp_add_read_packet(NetDriverState *nd,
1044 IOCanRWHandler *fd_can_read,
1045 IOReadHandler *fd_read, void *opaque)
1047 slirp_fd_opaque = opaque;
1048 slirp_fd_can_read = fd_can_read;
1049 slirp_fd_read = fd_read;
1052 static int net_slirp_init(NetDriverState *nd)
1054 if (!slirp_inited) {
1058 nd->send_packet = slirp_send_packet;
1059 nd->add_read_packet = slirp_add_read_packet;
1060 pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
1064 #endif /* CONFIG_SLIRP */
1066 #if !defined(_WIN32)
1068 static int tun_open(char *ifname, int ifname_size)
1074 fd = open("/dev/tap", O_RDWR);
1076 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1081 dev = devname(s.st_rdev, S_IFCHR);
1082 pstrcpy(ifname, ifname_size, dev);
1084 fcntl(fd, F_SETFL, O_NONBLOCK);
1088 static int tun_open(char *ifname, int ifname_size)
1093 fd = open("/dev/net/tun", O_RDWR);
1095 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1098 memset(&ifr, 0, sizeof(ifr));
1099 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1100 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
1101 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1103 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1107 printf("Connected to host network interface: %s\n", ifr.ifr_name);
1108 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1109 fcntl(fd, F_SETFL, O_NONBLOCK);
1114 static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1116 write(nd->fd, buf, size);
1119 static void tun_add_read_packet(NetDriverState *nd,
1120 IOCanRWHandler *fd_can_read,
1121 IOReadHandler *fd_read, void *opaque)
1123 qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
1126 static int net_tun_init(NetDriverState *nd)
1132 nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
1136 /* try to launch network init script */
1141 *parg++ = network_script;
1142 *parg++ = nd->ifname;
1144 execv(network_script, args);
1147 while (waitpid(pid, &status, 0) != pid);
1148 if (!WIFEXITED(status) ||
1149 WEXITSTATUS(status) != 0) {
1150 fprintf(stderr, "%s: could not launch network script\n",
1154 nd->send_packet = tun_send_packet;
1155 nd->add_read_packet = tun_add_read_packet;
1159 static int net_fd_init(NetDriverState *nd, int fd)
1162 nd->send_packet = tun_send_packet;
1163 nd->add_read_packet = tun_add_read_packet;
1164 pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
1168 #endif /* !_WIN32 */
1170 /***********************************************************/
1175 static void term_exit(void)
1179 static void term_init(void)
1185 /* init terminal so that we can grab keys */
1186 static struct termios oldtty;
1188 static void term_exit(void)
1190 tcsetattr (0, TCSANOW, &oldtty);
1193 static void term_init(void)
1197 tcgetattr (0, &tty);
1200 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1201 |INLCR|IGNCR|ICRNL|IXON);
1202 tty.c_oflag |= OPOST;
1203 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1204 /* if graphical mode, we allow Ctrl-C handling */
1206 tty.c_lflag &= ~ISIG;
1207 tty.c_cflag &= ~(CSIZE|PARENB);
1210 tty.c_cc[VTIME] = 0;
1212 tcsetattr (0, TCSANOW, &tty);
1216 fcntl(0, F_SETFL, O_NONBLOCK);
1221 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
1225 static void dumb_resize(DisplayState *ds, int w, int h)
1229 static void dumb_refresh(DisplayState *ds)
1231 vga_update_display();
1234 void dumb_display_init(DisplayState *ds)
1239 ds->dpy_update = dumb_update;
1240 ds->dpy_resize = dumb_resize;
1241 ds->dpy_refresh = dumb_refresh;
1244 #if !defined(CONFIG_SOFTMMU)
1245 /***********************************************************/
1246 /* cpu signal handler */
1247 static void host_segv_handler(int host_signum, siginfo_t *info,
1250 if (cpu_signal_handler(host_signum, info, puc))
1257 /***********************************************************/
1260 #define MAX_IO_HANDLERS 64
1262 typedef struct IOHandlerRecord {
1264 IOCanRWHandler *fd_can_read;
1265 IOReadHandler *fd_read;
1267 /* temporary data */
1270 struct IOHandlerRecord *next;
1273 static IOHandlerRecord *first_io_handler;
1275 int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
1276 IOReadHandler *fd_read, void *opaque)
1278 IOHandlerRecord *ioh;
1280 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1284 ioh->fd_can_read = fd_can_read;
1285 ioh->fd_read = fd_read;
1286 ioh->opaque = opaque;
1287 ioh->next = first_io_handler;
1288 first_io_handler = ioh;
1292 void qemu_del_fd_read_handler(int fd)
1294 IOHandlerRecord **pioh, *ioh;
1296 pioh = &first_io_handler;
1301 if (ioh->fd == fd) {
1309 /***********************************************************/
1310 /* savevm/loadvm support */
1312 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
1314 fwrite(buf, 1, size, f);
1317 void qemu_put_byte(QEMUFile *f, int v)
1322 void qemu_put_be16(QEMUFile *f, unsigned int v)
1324 qemu_put_byte(f, v >> 8);
1325 qemu_put_byte(f, v);
1328 void qemu_put_be32(QEMUFile *f, unsigned int v)
1330 qemu_put_byte(f, v >> 24);
1331 qemu_put_byte(f, v >> 16);
1332 qemu_put_byte(f, v >> 8);
1333 qemu_put_byte(f, v);
1336 void qemu_put_be64(QEMUFile *f, uint64_t v)
1338 qemu_put_be32(f, v >> 32);
1339 qemu_put_be32(f, v);
1342 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
1344 return fread(buf, 1, size, f);
1347 int qemu_get_byte(QEMUFile *f)
1357 unsigned int qemu_get_be16(QEMUFile *f)
1360 v = qemu_get_byte(f) << 8;
1361 v |= qemu_get_byte(f);
1365 unsigned int qemu_get_be32(QEMUFile *f)
1368 v = qemu_get_byte(f) << 24;
1369 v |= qemu_get_byte(f) << 16;
1370 v |= qemu_get_byte(f) << 8;
1371 v |= qemu_get_byte(f);
1375 uint64_t qemu_get_be64(QEMUFile *f)
1378 v = (uint64_t)qemu_get_be32(f) << 32;
1379 v |= qemu_get_be32(f);
1383 int64_t qemu_ftell(QEMUFile *f)
1388 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
1390 if (fseek(f, pos, whence) < 0)
1395 typedef struct SaveStateEntry {
1399 SaveStateHandler *save_state;
1400 LoadStateHandler *load_state;
1402 struct SaveStateEntry *next;
1405 static SaveStateEntry *first_se;
1407 int register_savevm(const char *idstr,
1410 SaveStateHandler *save_state,
1411 LoadStateHandler *load_state,
1414 SaveStateEntry *se, **pse;
1416 se = qemu_malloc(sizeof(SaveStateEntry));
1419 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
1420 se->instance_id = instance_id;
1421 se->version_id = version_id;
1422 se->save_state = save_state;
1423 se->load_state = load_state;
1424 se->opaque = opaque;
1427 /* add at the end of list */
1429 while (*pse != NULL)
1430 pse = &(*pse)->next;
1435 #define QEMU_VM_FILE_MAGIC 0x5145564d
1436 #define QEMU_VM_FILE_VERSION 0x00000001
1438 int qemu_savevm(const char *filename)
1442 int len, len_pos, cur_pos, saved_vm_running, ret;
1444 saved_vm_running = vm_running;
1447 f = fopen(filename, "wb");
1453 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
1454 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
1456 for(se = first_se; se != NULL; se = se->next) {
1458 len = strlen(se->idstr);
1459 qemu_put_byte(f, len);
1460 qemu_put_buffer(f, se->idstr, len);
1462 qemu_put_be32(f, se->instance_id);
1463 qemu_put_be32(f, se->version_id);
1465 /* record size: filled later */
1467 qemu_put_be32(f, 0);
1469 se->save_state(f, se->opaque);
1471 /* fill record size */
1473 len = ftell(f) - len_pos - 4;
1474 fseek(f, len_pos, SEEK_SET);
1475 qemu_put_be32(f, len);
1476 fseek(f, cur_pos, SEEK_SET);
1482 if (saved_vm_running)
1487 static SaveStateEntry *find_se(const char *idstr, int instance_id)
1491 for(se = first_se; se != NULL; se = se->next) {
1492 if (!strcmp(se->idstr, idstr) &&
1493 instance_id == se->instance_id)
1499 int qemu_loadvm(const char *filename)
1503 int len, cur_pos, ret, instance_id, record_len, version_id;
1504 int saved_vm_running;
1508 saved_vm_running = vm_running;
1511 f = fopen(filename, "rb");
1517 v = qemu_get_be32(f);
1518 if (v != QEMU_VM_FILE_MAGIC)
1520 v = qemu_get_be32(f);
1521 if (v != QEMU_VM_FILE_VERSION) {
1528 #if defined (DO_TB_FLUSH)
1529 tb_flush(global_env);
1531 len = qemu_get_byte(f);
1534 qemu_get_buffer(f, idstr, len);
1536 instance_id = qemu_get_be32(f);
1537 version_id = qemu_get_be32(f);
1538 record_len = qemu_get_be32(f);
1540 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1541 idstr, instance_id, version_id, record_len);
1544 se = find_se(idstr, instance_id);
1546 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1547 instance_id, idstr);
1549 ret = se->load_state(f, se->opaque, version_id);
1551 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1552 instance_id, idstr);
1555 /* always seek to exact end of record */
1556 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
1561 if (saved_vm_running)
1566 /***********************************************************/
1567 /* cpu save/restore */
1569 #if defined(TARGET_I386)
1571 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
1573 qemu_put_be32(f, (uint32_t)dt->base);
1574 qemu_put_be32(f, dt->limit);
1575 qemu_put_be32(f, dt->flags);
1578 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
1580 dt->base = (uint8_t *)qemu_get_be32(f);
1581 dt->limit = qemu_get_be32(f);
1582 dt->flags = qemu_get_be32(f);
1585 void cpu_save(QEMUFile *f, void *opaque)
1587 CPUState *env = opaque;
1588 uint16_t fptag, fpus, fpuc;
1592 for(i = 0; i < 8; i++)
1593 qemu_put_be32s(f, &env->regs[i]);
1594 qemu_put_be32s(f, &env->eip);
1595 qemu_put_be32s(f, &env->eflags);
1596 qemu_put_be32s(f, &env->eflags);
1597 hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
1598 qemu_put_be32s(f, &hflags);
1602 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1604 for (i=7; i>=0; i--) {
1606 if (env->fptags[i]) {
1611 qemu_put_be16s(f, &fpuc);
1612 qemu_put_be16s(f, &fpus);
1613 qemu_put_be16s(f, &fptag);
1615 for(i = 0; i < 8; i++) {
1618 cpu_get_fp80(&mant, &exp, env->fpregs[i]);
1619 qemu_put_be64(f, mant);
1620 qemu_put_be16(f, exp);
1623 for(i = 0; i < 6; i++)
1624 cpu_put_seg(f, &env->segs[i]);
1625 cpu_put_seg(f, &env->ldt);
1626 cpu_put_seg(f, &env->tr);
1627 cpu_put_seg(f, &env->gdt);
1628 cpu_put_seg(f, &env->idt);
1630 qemu_put_be32s(f, &env->sysenter_cs);
1631 qemu_put_be32s(f, &env->sysenter_esp);
1632 qemu_put_be32s(f, &env->sysenter_eip);
1634 qemu_put_be32s(f, &env->cr[0]);
1635 qemu_put_be32s(f, &env->cr[2]);
1636 qemu_put_be32s(f, &env->cr[3]);
1637 qemu_put_be32s(f, &env->cr[4]);
1639 for(i = 0; i < 8; i++)
1640 qemu_put_be32s(f, &env->dr[i]);
1643 qemu_put_be32s(f, &env->a20_mask);
1646 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1648 CPUState *env = opaque;
1651 uint16_t fpus, fpuc, fptag;
1653 if (version_id != 1)
1655 for(i = 0; i < 8; i++)
1656 qemu_get_be32s(f, &env->regs[i]);
1657 qemu_get_be32s(f, &env->eip);
1658 qemu_get_be32s(f, &env->eflags);
1659 qemu_get_be32s(f, &env->eflags);
1660 qemu_get_be32s(f, &hflags);
1662 qemu_get_be16s(f, &fpuc);
1663 qemu_get_be16s(f, &fpus);
1664 qemu_get_be16s(f, &fptag);
1666 for(i = 0; i < 8; i++) {
1669 mant = qemu_get_be64(f);
1670 exp = qemu_get_be16(f);
1671 env->fpregs[i] = cpu_set_fp80(mant, exp);
1675 env->fpstt = (fpus >> 11) & 7;
1676 env->fpus = fpus & ~0x3800;
1677 for(i = 0; i < 8; i++) {
1678 env->fptags[i] = ((fptag & 3) == 3);
1682 for(i = 0; i < 6; i++)
1683 cpu_get_seg(f, &env->segs[i]);
1684 cpu_get_seg(f, &env->ldt);
1685 cpu_get_seg(f, &env->tr);
1686 cpu_get_seg(f, &env->gdt);
1687 cpu_get_seg(f, &env->idt);
1689 qemu_get_be32s(f, &env->sysenter_cs);
1690 qemu_get_be32s(f, &env->sysenter_esp);
1691 qemu_get_be32s(f, &env->sysenter_eip);
1693 qemu_get_be32s(f, &env->cr[0]);
1694 qemu_get_be32s(f, &env->cr[2]);
1695 qemu_get_be32s(f, &env->cr[3]);
1696 qemu_get_be32s(f, &env->cr[4]);
1698 for(i = 0; i < 8; i++)
1699 qemu_get_be32s(f, &env->dr[i]);
1702 qemu_get_be32s(f, &env->a20_mask);
1704 /* XXX: compute hflags from scratch, except for CPL and IIF */
1705 env->hflags = hflags;
1710 #elif defined(TARGET_PPC)
1711 void cpu_save(QEMUFile *f, void *opaque)
1715 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1721 #warning No CPU save/restore functions
1725 /***********************************************************/
1726 /* ram save/restore */
1728 /* we just avoid storing empty pages */
1729 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
1734 for(i = 1; i < len; i++) {
1738 qemu_put_byte(f, 1);
1739 qemu_put_byte(f, v);
1742 qemu_put_byte(f, 0);
1743 qemu_put_buffer(f, buf, len);
1746 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
1750 v = qemu_get_byte(f);
1753 if (qemu_get_buffer(f, buf, len) != len)
1757 v = qemu_get_byte(f);
1758 memset(buf, v, len);
1766 static void ram_save(QEMUFile *f, void *opaque)
1769 qemu_put_be32(f, phys_ram_size);
1770 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1771 ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1775 static int ram_load(QEMUFile *f, void *opaque, int version_id)
1779 if (version_id != 1)
1781 if (qemu_get_be32(f) != phys_ram_size)
1783 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1784 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1791 /***********************************************************/
1792 /* main execution loop */
1794 void gui_update(void *opaque)
1796 display_state.dpy_refresh(&display_state);
1797 qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
1800 /* XXX: support several handlers */
1801 VMStopHandler *vm_stop_cb;
1802 VMStopHandler *vm_stop_opaque;
1804 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
1807 vm_stop_opaque = opaque;
1811 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
1824 void vm_stop(int reason)
1827 cpu_disable_ticks();
1831 vm_stop_cb(vm_stop_opaque, reason);
1837 /* reset/shutdown handler */
1839 typedef struct QEMUResetEntry {
1840 QEMUResetHandler *func;
1842 struct QEMUResetEntry *next;
1845 static QEMUResetEntry *first_reset_entry;
1846 static int reset_requested;
1847 static int shutdown_requested;
1849 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
1851 QEMUResetEntry **pre, *re;
1853 pre = &first_reset_entry;
1854 while (*pre != NULL)
1855 pre = &(*pre)->next;
1856 re = qemu_mallocz(sizeof(QEMUResetEntry));
1858 re->opaque = opaque;
1863 void qemu_system_reset(void)
1867 /* reset all devices */
1868 for(re = first_reset_entry; re != NULL; re = re->next) {
1869 re->func(re->opaque);
1873 void qemu_system_reset_request(void)
1875 reset_requested = 1;
1876 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
1879 void qemu_system_shutdown_request(void)
1881 shutdown_requested = 1;
1882 cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT);
1885 static void main_cpu_reset(void *opaque)
1888 CPUState *env = opaque;
1896 struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
1897 IOHandlerRecord *ioh, *ioh_next;
1902 CPUState *env = global_env;
1906 ret = cpu_exec(env);
1907 if (shutdown_requested) {
1908 ret = EXCP_INTERRUPT;
1911 if (reset_requested) {
1912 reset_requested = 0;
1913 qemu_system_reset();
1914 ret = EXCP_INTERRUPT;
1916 if (ret == EXCP_DEBUG) {
1917 vm_stop(EXCP_DEBUG);
1919 /* if hlt instruction, we wait until the next IRQ */
1920 /* XXX: use timeout computed from timers */
1921 if (ret == EXCP_HLT)
1934 /* poll any events */
1935 /* XXX: separate device handlers from system ones */
1937 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
1938 if (!ioh->fd_can_read) {
1941 pf->events = POLLIN;
1945 max_size = ioh->fd_can_read(ioh->opaque);
1947 if (max_size > sizeof(buf))
1948 max_size = sizeof(buf);
1950 pf->events = POLLIN;
1957 ioh->max_size = max_size;
1960 ret = poll(ufds, pf - ufds, timeout);
1962 /* XXX: better handling of removal */
1963 for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
1964 ioh_next = ioh->next;
1967 if (pf->revents & POLLIN) {
1968 if (ioh->max_size == 0) {
1969 /* just a read event */
1970 ioh->fd_read(ioh->opaque, NULL, 0);
1972 n = read(ioh->fd, buf, ioh->max_size);
1974 ioh->fd_read(ioh->opaque, buf, n);
1975 } else if (errno != EAGAIN) {
1976 ioh->fd_read(ioh->opaque, NULL, -errno);
1984 #if defined(CONFIG_SLIRP)
1985 /* XXX: merge with poll() */
1987 fd_set rfds, wfds, xfds;
1995 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1998 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
2000 slirp_select_poll(&rfds, &wfds, &xfds);
2008 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
2009 qemu_get_clock(vm_clock));
2011 if (audio_enabled) {
2012 /* XXX: add explicit timer */
2016 /* run dma transfers, if any */
2020 /* real time timers */
2021 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
2022 qemu_get_clock(rt_clock));
2024 cpu_disable_ticks();
2030 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
2031 "usage: %s [options] [disk_image]\n"
2033 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2035 "Standard options:\n"
2036 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
2037 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
2038 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
2039 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
2040 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
2041 "-snapshot write to temporary files instead of disk image files\n"
2042 "-m megs set virtual RAM size to megs MB [default=%d]\n"
2043 "-nographic disable graphical output and redirect serial I/Os to console\n"
2044 "-enable-audio enable audio support\n"
2045 "-localtime set the real time clock to local time [default=utc]\n"
2047 "-prep Simulate a PREP system (default is PowerMAC)\n"
2048 "-g WxH[xDEPTH] Set the initial VGA graphic mode\n"
2051 "Network options:\n"
2052 "-nics n simulate 'n' network cards [default=1]\n"
2053 "-macaddr addr set the mac address of the first interface\n"
2054 "-n script set tap/tun network init script [default=%s]\n"
2055 "-tun-fd fd use this fd as already opened tap/tun interface\n"
2057 "-user-net use user mode network stack [default if no tap/tun script]\n"
2059 "-dummy-net use dummy network stack\n"
2061 "Linux boot specific:\n"
2062 "-kernel bzImage use 'bzImage' as kernel image\n"
2063 "-append cmdline use 'cmdline' as kernel command line\n"
2064 "-initrd file use 'file' as initial ram disk\n"
2066 "Debug/Expert options:\n"
2067 "-S freeze CPU at startup (use 'c' to start execution)\n"
2068 "-s wait gdb connection to port %d\n"
2069 "-p port change gdb connection port\n"
2070 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
2071 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
2072 "-L path set the directory for the BIOS and VGA BIOS\n"
2073 #ifdef USE_CODE_COPY
2074 "-no-code-copy disable code copy acceleration\n"
2077 "-isa simulate an ISA-only system (default is PCI system)\n"
2080 "During emulation, use C-a h to get terminal commands:\n",
2081 #ifdef CONFIG_SOFTMMU
2087 DEFAULT_NETWORK_SCRIPT,
2088 DEFAULT_GDBSTUB_PORT,
2091 #ifndef CONFIG_SOFTMMU
2093 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
2094 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
2100 #define HAS_ARG 0x0001
2113 QEMU_OPTION_snapshot,
2115 QEMU_OPTION_nographic,
2116 QEMU_OPTION_enable_audio,
2119 QEMU_OPTION_macaddr,
2122 QEMU_OPTION_user_net,
2123 QEMU_OPTION_dummy_net,
2135 QEMU_OPTION_no_code_copy,
2139 QEMU_OPTION_localtime,
2140 QEMU_OPTION_cirrusvga,
2144 typedef struct QEMUOption {
2150 const QEMUOption qemu_options[] = {
2151 { "h", 0, QEMU_OPTION_h },
2153 { "fda", HAS_ARG, QEMU_OPTION_fda },
2154 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
2155 { "hda", HAS_ARG, QEMU_OPTION_hda },
2156 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
2157 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
2158 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
2159 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
2160 { "boot", HAS_ARG, QEMU_OPTION_boot },
2161 { "snapshot", 0, QEMU_OPTION_snapshot },
2162 { "m", HAS_ARG, QEMU_OPTION_m },
2163 { "nographic", 0, QEMU_OPTION_nographic },
2164 { "enable-audio", 0, QEMU_OPTION_enable_audio },
2166 { "nics", HAS_ARG, QEMU_OPTION_nics},
2167 { "macaddr", HAS_ARG, QEMU_OPTION_macaddr},
2168 { "n", HAS_ARG, QEMU_OPTION_n },
2169 { "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd },
2171 { "user-net", 0, QEMU_OPTION_user_net },
2173 { "dummy-net", 0, QEMU_OPTION_dummy_net },
2175 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
2176 { "append", HAS_ARG, QEMU_OPTION_append },
2177 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
2179 { "S", 0, QEMU_OPTION_S },
2180 { "s", 0, QEMU_OPTION_s },
2181 { "p", HAS_ARG, QEMU_OPTION_p },
2182 { "d", HAS_ARG, QEMU_OPTION_d },
2183 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
2184 { "L", HAS_ARG, QEMU_OPTION_L },
2185 { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
2187 { "prep", 0, QEMU_OPTION_prep },
2188 { "g", 1, QEMU_OPTION_g },
2190 { "localtime", 0, QEMU_OPTION_localtime },
2191 { "isa", 0, QEMU_OPTION_isa },
2193 /* temporary options */
2194 { "pci", 0, QEMU_OPTION_pci },
2195 { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
2199 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2201 /* this stack is only used during signal handling */
2202 #define SIGNAL_STACK_SIZE 32768
2204 static uint8_t *signal_stack;
2208 #define NET_IF_TUN 0
2209 #define NET_IF_USER 1
2210 #define NET_IF_DUMMY 2
2212 int main(int argc, char **argv)
2214 #ifdef CONFIG_GDBSTUB
2215 int use_gdbstub, gdbstub_port;
2218 int snapshot, linux_boot;
2220 const char *initrd_filename;
2221 const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
2222 const char *kernel_filename, *kernel_cmdline;
2223 DisplayState *ds = &display_state;
2224 int cyls, heads, secs;
2225 int start_emulation = 1;
2227 int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
2229 const char *r, *optarg;
2231 #if !defined(CONFIG_SOFTMMU)
2232 /* we never want that malloc() uses mmap() */
2233 mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
2235 initrd_filename = NULL;
2236 for(i = 0; i < MAX_FD; i++)
2237 fd_filename[i] = NULL;
2238 for(i = 0; i < MAX_DISKS; i++)
2239 hd_filename[i] = NULL;
2240 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
2241 vga_ram_size = VGA_RAM_SIZE;
2242 bios_size = BIOS_SIZE;
2243 pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
2244 #ifdef CONFIG_GDBSTUB
2246 gdbstub_port = DEFAULT_GDBSTUB_PORT;
2250 kernel_filename = NULL;
2251 kernel_cmdline = "";
2253 cyls = heads = secs = 0;
2258 /* default mac address of the first network interface */
2272 hd_filename[0] = argv[optind++];
2274 const QEMUOption *popt;
2277 popt = qemu_options;
2280 fprintf(stderr, "%s: invalid option -- '%s'\n",
2284 if (!strcmp(popt->name, r + 1))
2288 if (popt->flags & HAS_ARG) {
2289 if (optind >= argc) {
2290 fprintf(stderr, "%s: option '%s' requires an argument\n",
2294 optarg = argv[optind++];
2299 switch(popt->index) {
2300 case QEMU_OPTION_initrd:
2301 initrd_filename = optarg;
2303 case QEMU_OPTION_hda:
2304 hd_filename[0] = optarg;
2306 case QEMU_OPTION_hdb:
2307 hd_filename[1] = optarg;
2309 case QEMU_OPTION_snapshot:
2312 case QEMU_OPTION_hdachs:
2316 cyls = strtol(p, (char **)&p, 0);
2320 heads = strtol(p, (char **)&p, 0);
2324 secs = strtol(p, (char **)&p, 0);
2331 case QEMU_OPTION_nographic:
2334 case QEMU_OPTION_kernel:
2335 kernel_filename = optarg;
2337 case QEMU_OPTION_append:
2338 kernel_cmdline = optarg;
2340 case QEMU_OPTION_tun_fd:
2344 net_if_type = NET_IF_TUN;
2345 if (nb_tun_fds < MAX_NICS) {
2346 fd = strtol(optarg, (char **)&p, 0);
2348 fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
2351 tun_fds[nb_tun_fds++] = fd;
2355 case QEMU_OPTION_hdc:
2356 hd_filename[2] = optarg;
2359 case QEMU_OPTION_hdd:
2360 hd_filename[3] = optarg;
2362 case QEMU_OPTION_cdrom:
2363 hd_filename[2] = optarg;
2366 case QEMU_OPTION_boot:
2367 boot_device = optarg[0];
2368 if (boot_device != 'a' && boot_device != 'b' &&
2369 boot_device != 'c' && boot_device != 'd') {
2370 fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
2374 case QEMU_OPTION_fda:
2375 fd_filename[0] = optarg;
2377 case QEMU_OPTION_fdb:
2378 fd_filename[1] = optarg;
2380 case QEMU_OPTION_no_code_copy:
2381 code_copy_enabled = 0;
2383 case QEMU_OPTION_nics:
2384 nb_nics = atoi(optarg);
2385 if (nb_nics < 0 || nb_nics > MAX_NICS) {
2386 fprintf(stderr, "qemu: invalid number of network interfaces\n");
2390 case QEMU_OPTION_macaddr:
2395 for(i = 0; i < 6; i++) {
2396 macaddr[i] = strtol(p, (char **)&p, 16);
2403 fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
2411 case QEMU_OPTION_user_net:
2412 net_if_type = NET_IF_USER;
2414 case QEMU_OPTION_dummy_net:
2415 net_if_type = NET_IF_DUMMY;
2417 case QEMU_OPTION_enable_audio:
2424 ram_size = atoi(optarg) * 1024 * 1024;
2427 if (ram_size > PHYS_RAM_MAX_SIZE) {
2428 fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
2429 PHYS_RAM_MAX_SIZE / (1024 * 1024));
2438 mask = cpu_str_to_log_mask(optarg);
2440 printf("Log items (comma separated):\n");
2441 for(item = cpu_log_items; item->mask != 0; item++) {
2442 printf("%-10s %s\n", item->name, item->help);
2450 pstrcpy(network_script, sizeof(network_script), optarg);
2452 #ifdef CONFIG_GDBSTUB
2457 gdbstub_port = atoi(optarg);
2464 start_emulation = 0;
2466 case QEMU_OPTION_pci:
2469 case QEMU_OPTION_isa:
2472 case QEMU_OPTION_prep:
2475 case QEMU_OPTION_localtime:
2478 case QEMU_OPTION_cirrusvga:
2479 cirrus_vga_enabled = 1;
2486 w = strtol(p, (char **)&p, 10);
2489 fprintf(stderr, "qemu: invalid resolution or depth\n");
2495 h = strtol(p, (char **)&p, 10);
2500 depth = strtol(p, (char **)&p, 10);
2501 if (depth != 8 && depth != 15 && depth != 16 &&
2502 depth != 24 && depth != 32)
2504 } else if (*p == '\0') {
2505 depth = graphic_depth;
2512 graphic_depth = depth;
2519 linux_boot = (kernel_filename != NULL);
2521 if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
2522 fd_filename[0] == '\0')
2525 /* boot to cd by default if no hard disk */
2526 if (hd_filename[0] == '\0' && boot_device == 'c') {
2527 if (fd_filename[0] != '\0')
2533 #if !defined(CONFIG_SOFTMMU)
2534 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2536 static uint8_t stdout_buf[4096];
2537 setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
2540 setvbuf(stdout, NULL, _IOLBF, 0);
2543 /* init host network redirectors */
2544 if (net_if_type == -1) {
2545 net_if_type = NET_IF_TUN;
2546 #if defined(CONFIG_SLIRP)
2547 if (access(network_script, R_OK) < 0) {
2548 net_if_type = NET_IF_USER;
2553 for(i = 0; i < nb_nics; i++) {
2554 NetDriverState *nd = &nd_table[i];
2556 /* init virtual mac address */
2557 nd->macaddr[0] = macaddr[0];
2558 nd->macaddr[1] = macaddr[1];
2559 nd->macaddr[2] = macaddr[2];
2560 nd->macaddr[3] = macaddr[3];
2561 nd->macaddr[4] = macaddr[4];
2562 nd->macaddr[5] = macaddr[5] + i;
2563 switch(net_if_type) {
2564 #if defined(CONFIG_SLIRP)
2569 #if !defined(_WIN32)
2571 if (i < nb_tun_fds) {
2572 net_fd_init(nd, tun_fds[i]);
2574 if (net_tun_init(nd) < 0)
2586 /* init the memory */
2587 phys_ram_size = ram_size + vga_ram_size + bios_size;
2589 #ifdef CONFIG_SOFTMMU
2591 /* mallocs are always aligned on BSD. */
2592 phys_ram_base = malloc(phys_ram_size);
2594 phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
2596 if (!phys_ram_base) {
2597 fprintf(stderr, "Could not allocate physical memory\n");
2601 /* as we must map the same page at several addresses, we must use
2606 tmpdir = getenv("QEMU_TMPDIR");
2609 snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
2610 if (mkstemp(phys_ram_file) < 0) {
2611 fprintf(stderr, "Could not create temporary memory file '%s'\n",
2615 phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
2616 if (phys_ram_fd < 0) {
2617 fprintf(stderr, "Could not open temporary memory file '%s'\n",
2621 ftruncate(phys_ram_fd, phys_ram_size);
2622 unlink(phys_ram_file);
2623 phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
2625 PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
2627 if (phys_ram_base == MAP_FAILED) {
2628 fprintf(stderr, "Could not map physical memory\n");
2634 /* we always create the cdrom drive, even if no disk is there */
2636 bs_table[2] = bdrv_new("cdrom");
2637 bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
2640 /* open the virtual block devices */
2641 for(i = 0; i < MAX_DISKS; i++) {
2642 if (hd_filename[i]) {
2645 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
2646 bs_table[i] = bdrv_new(buf);
2648 if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
2649 fprintf(stderr, "qemu: could not open hard disk image '%s\n",
2653 if (i == 0 && cyls != 0)
2654 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
2658 /* we always create at least one floppy disk */
2659 fd_table[0] = bdrv_new("fda");
2660 bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
2662 for(i = 0; i < MAX_FD; i++) {
2663 if (fd_filename[i]) {
2666 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
2667 fd_table[i] = bdrv_new(buf);
2668 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
2670 if (fd_filename[i] != '\0') {
2671 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
2672 fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
2680 /* init CPU state */
2683 cpu_single_env = env;
2685 register_savevm("timer", 0, 1, timer_save, timer_load, env);
2686 register_savevm("cpu", 0, 1, cpu_save, cpu_load, env);
2687 register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
2688 qemu_register_reset(main_cpu_reset, global_env);
2691 cpu_calibrate_ticks();
2695 dumb_display_init(ds);
2698 sdl_display_init(ds);
2700 dumb_display_init(ds);
2704 /* setup cpu signal handlers for MMU / self modifying code handling */
2705 #if !defined(CONFIG_SOFTMMU)
2707 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2710 signal_stack = memalign(16, SIGNAL_STACK_SIZE);
2711 stk.ss_sp = signal_stack;
2712 stk.ss_size = SIGNAL_STACK_SIZE;
2715 if (sigaltstack(&stk, NULL) < 0) {
2716 perror("sigaltstack");
2722 struct sigaction act;
2724 sigfillset(&act.sa_mask);
2725 act.sa_flags = SA_SIGINFO;
2726 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2727 act.sa_flags |= SA_ONSTACK;
2729 act.sa_sigaction = host_segv_handler;
2730 sigaction(SIGSEGV, &act, NULL);
2731 sigaction(SIGBUS, &act, NULL);
2732 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2733 sigaction(SIGFPE, &act, NULL);
2740 struct sigaction act;
2741 sigfillset(&act.sa_mask);
2743 act.sa_handler = SIG_IGN;
2744 sigaction(SIGPIPE, &act, NULL);
2749 #if defined(TARGET_I386)
2750 pc_init(ram_size, vga_ram_size, boot_device,
2751 ds, fd_filename, snapshot,
2752 kernel_filename, kernel_cmdline, initrd_filename);
2753 #elif defined(TARGET_PPC)
2754 ppc_init(ram_size, vga_ram_size, boot_device,
2755 ds, fd_filename, snapshot,
2756 kernel_filename, kernel_cmdline, initrd_filename);
2759 /* launched after the device init so that it can display or not a
2763 gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
2764 qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
2766 #ifdef CONFIG_GDBSTUB
2768 if (gdbserver_start(gdbstub_port) < 0) {
2769 fprintf(stderr, "Could not open gdbserver socket on port %d\n",
2773 printf("Waiting gdb connection on port %d\n", gdbstub_port);
2777 if (start_emulation)