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;
134 /***********************************************************/
135 /* x86 ISA bus support */
137 target_phys_addr_t isa_mem_base = 0;
139 uint32_t default_ioport_readb(void *opaque, uint32_t address)
141 #ifdef DEBUG_UNUSED_IOPORT
142 fprintf(stderr, "inb: port=0x%04x\n", address);
147 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
149 #ifdef DEBUG_UNUSED_IOPORT
150 fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
154 /* default is to make two byte accesses */
155 uint32_t default_ioport_readw(void *opaque, uint32_t address)
158 data = ioport_read_table[0][address](ioport_opaque[address], address);
159 address = (address + 1) & (MAX_IOPORTS - 1);
160 data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
164 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
166 ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
167 address = (address + 1) & (MAX_IOPORTS - 1);
168 ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
171 uint32_t default_ioport_readl(void *opaque, uint32_t address)
173 #ifdef DEBUG_UNUSED_IOPORT
174 fprintf(stderr, "inl: port=0x%04x\n", address);
179 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
181 #ifdef DEBUG_UNUSED_IOPORT
182 fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
186 void init_ioports(void)
190 for(i = 0; i < MAX_IOPORTS; i++) {
191 ioport_read_table[0][i] = default_ioport_readb;
192 ioport_write_table[0][i] = default_ioport_writeb;
193 ioport_read_table[1][i] = default_ioport_readw;
194 ioport_write_table[1][i] = default_ioport_writew;
195 ioport_read_table[2][i] = default_ioport_readl;
196 ioport_write_table[2][i] = default_ioport_writel;
200 /* size is the word size in byte */
201 int register_ioport_read(int start, int length, int size,
202 IOPortReadFunc *func, void *opaque)
208 } else if (size == 2) {
210 } else if (size == 4) {
213 hw_error("register_ioport_read: invalid size");
216 for(i = start; i < start + length; i += size) {
217 ioport_read_table[bsize][i] = func;
218 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
219 hw_error("register_ioport_read: invalid opaque");
220 ioport_opaque[i] = opaque;
225 /* size is the word size in byte */
226 int register_ioport_write(int start, int length, int size,
227 IOPortWriteFunc *func, void *opaque)
233 } else if (size == 2) {
235 } else if (size == 4) {
238 hw_error("register_ioport_write: invalid size");
241 for(i = start; i < start + length; i += size) {
242 ioport_write_table[bsize][i] = func;
243 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
244 hw_error("register_ioport_read: invalid opaque");
245 ioport_opaque[i] = opaque;
250 void isa_unassign_ioport(int start, int length)
254 for(i = start; i < start + length; i++) {
255 ioport_read_table[0][i] = default_ioport_readb;
256 ioport_read_table[1][i] = default_ioport_readw;
257 ioport_read_table[2][i] = default_ioport_readl;
259 ioport_write_table[0][i] = default_ioport_writeb;
260 ioport_write_table[1][i] = default_ioport_writew;
261 ioport_write_table[2][i] = default_ioport_writel;
265 void pstrcpy(char *buf, int buf_size, const char *str)
275 if (c == 0 || q >= buf + buf_size - 1)
282 /* strcat and truncate. */
283 char *pstrcat(char *buf, int buf_size, const char *s)
288 pstrcpy(buf + len, buf_size - len, s);
292 /* return the size or -1 if error */
293 int load_image(const char *filename, uint8_t *addr)
296 fd = open(filename, O_RDONLY | O_BINARY);
299 size = lseek(fd, 0, SEEK_END);
300 lseek(fd, 0, SEEK_SET);
301 if (read(fd, addr, size) != size) {
309 void cpu_outb(CPUState *env, int addr, int val)
312 if (loglevel & CPU_LOG_IOPORT)
313 fprintf(logfile, "outb: %04x %02x\n", addr, val);
315 ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
318 void cpu_outw(CPUState *env, int addr, int val)
321 if (loglevel & CPU_LOG_IOPORT)
322 fprintf(logfile, "outw: %04x %04x\n", addr, val);
324 ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
327 void cpu_outl(CPUState *env, int addr, int val)
330 if (loglevel & CPU_LOG_IOPORT)
331 fprintf(logfile, "outl: %04x %08x\n", addr, val);
333 ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
336 int cpu_inb(CPUState *env, int addr)
339 val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
341 if (loglevel & CPU_LOG_IOPORT)
342 fprintf(logfile, "inb : %04x %02x\n", addr, val);
347 int cpu_inw(CPUState *env, int addr)
350 val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
352 if (loglevel & CPU_LOG_IOPORT)
353 fprintf(logfile, "inw : %04x %04x\n", addr, val);
358 int cpu_inl(CPUState *env, int addr)
361 val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
363 if (loglevel & CPU_LOG_IOPORT)
364 fprintf(logfile, "inl : %04x %08x\n", addr, val);
369 /***********************************************************/
370 void hw_error(const char *fmt, ...)
375 fprintf(stderr, "qemu: hardware error: ");
376 vfprintf(stderr, fmt, ap);
377 fprintf(stderr, "\n");
379 cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
381 cpu_dump_state(global_env, stderr, 0);
387 /***********************************************************/
390 static QEMUPutKBDEvent *qemu_put_kbd_event;
391 static void *qemu_put_kbd_event_opaque;
392 static QEMUPutMouseEvent *qemu_put_mouse_event;
393 static void *qemu_put_mouse_event_opaque;
395 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
397 qemu_put_kbd_event_opaque = opaque;
398 qemu_put_kbd_event = func;
401 void qemu_add_mouse_event_handler(QEMUPutMouseEvent *func, void *opaque)
403 qemu_put_mouse_event_opaque = opaque;
404 qemu_put_mouse_event = func;
407 void kbd_put_keycode(int keycode)
409 if (qemu_put_kbd_event) {
410 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
414 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
416 if (qemu_put_mouse_event) {
417 qemu_put_mouse_event(qemu_put_mouse_event_opaque,
418 dx, dy, dz, buttons_state);
422 /***********************************************************/
425 #if defined(__powerpc__)
427 static inline uint32_t get_tbl(void)
430 asm volatile("mftb %0" : "=r" (tbl));
434 static inline uint32_t get_tbu(void)
437 asm volatile("mftbu %0" : "=r" (tbl));
441 int64_t cpu_get_real_ticks(void)
444 /* NOTE: we test if wrapping has occurred */
450 return ((int64_t)h << 32) | l;
453 #elif defined(__i386__)
455 int64_t cpu_get_real_ticks(void)
458 asm volatile ("rdtsc" : "=A" (val));
462 #elif defined(__x86_64__)
464 int64_t cpu_get_real_ticks(void)
468 asm volatile("rdtsc" : "=a" (low), "=d" (high));
476 #error unsupported CPU
479 static int64_t cpu_ticks_offset;
480 static int cpu_ticks_enabled;
482 static inline int64_t cpu_get_ticks(void)
484 if (!cpu_ticks_enabled) {
485 return cpu_ticks_offset;
487 return cpu_get_real_ticks() + cpu_ticks_offset;
491 /* enable cpu_get_ticks() */
492 void cpu_enable_ticks(void)
494 if (!cpu_ticks_enabled) {
495 cpu_ticks_offset -= cpu_get_real_ticks();
496 cpu_ticks_enabled = 1;
500 /* disable cpu_get_ticks() : the clock is stopped. You must not call
501 cpu_get_ticks() after that. */
502 void cpu_disable_ticks(void)
504 if (cpu_ticks_enabled) {
505 cpu_ticks_offset = cpu_get_ticks();
506 cpu_ticks_enabled = 0;
510 static int64_t get_clock(void)
515 return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
518 gettimeofday(&tv, NULL);
519 return tv.tv_sec * 1000000LL + tv.tv_usec;
523 void cpu_calibrate_ticks(void)
528 ticks = cpu_get_real_ticks();
534 usec = get_clock() - usec;
535 ticks = cpu_get_real_ticks() - ticks;
536 ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
539 /* compute with 96 bit intermediate result: (a*b)/c */
540 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
545 #ifdef WORDS_BIGENDIAN
555 rl = (uint64_t)u.l.low * (uint64_t)b;
556 rh = (uint64_t)u.l.high * (uint64_t)b;
559 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
563 #define QEMU_TIMER_REALTIME 0
564 #define QEMU_TIMER_VIRTUAL 1
568 /* XXX: add frequency */
576 struct QEMUTimer *next;
582 static QEMUTimer *active_timers[2];
584 static MMRESULT timerID;
586 /* frequency of the times() clock tick */
587 static int timer_freq;
590 QEMUClock *qemu_new_clock(int type)
593 clock = qemu_mallocz(sizeof(QEMUClock));
600 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
604 ts = qemu_mallocz(sizeof(QEMUTimer));
611 void qemu_free_timer(QEMUTimer *ts)
616 /* stop a timer, but do not dealloc it */
617 void qemu_del_timer(QEMUTimer *ts)
621 /* NOTE: this code must be signal safe because
622 qemu_timer_expired() can be called from a signal. */
623 pt = &active_timers[ts->clock->type];
636 /* modify the current timer so that it will be fired when current_time
637 >= expire_time. The corresponding callback will be called. */
638 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
644 /* add the timer in the sorted list */
645 /* NOTE: this code must be signal safe because
646 qemu_timer_expired() can be called from a signal. */
647 pt = &active_timers[ts->clock->type];
652 if (t->expire_time > expire_time)
656 ts->expire_time = expire_time;
661 int qemu_timer_pending(QEMUTimer *ts)
664 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
671 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
675 return (timer_head->expire_time <= current_time);
678 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
684 if (ts->expire_time > current_time)
686 /* remove timer from the list before calling the callback */
687 *ptimer_head = ts->next;
690 /* run the callback (the timer list can be modified) */
695 int64_t qemu_get_clock(QEMUClock *clock)
697 switch(clock->type) {
698 case QEMU_TIMER_REALTIME:
700 return GetTickCount();
705 /* Note that using gettimeofday() is not a good solution
706 for timers because its value change when the date is
708 if (timer_freq == 100) {
709 return times(&tp) * 10;
711 return ((int64_t)times(&tp) * 1000) / timer_freq;
716 case QEMU_TIMER_VIRTUAL:
717 return cpu_get_ticks();
722 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
724 uint64_t expire_time;
726 if (qemu_timer_pending(ts)) {
727 expire_time = ts->expire_time;
731 qemu_put_be64(f, expire_time);
734 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
736 uint64_t expire_time;
738 expire_time = qemu_get_be64(f);
739 if (expire_time != -1) {
740 qemu_mod_timer(ts, expire_time);
746 static void timer_save(QEMUFile *f, void *opaque)
748 if (cpu_ticks_enabled) {
749 hw_error("cannot save state if virtual timers are running");
751 qemu_put_be64s(f, &cpu_ticks_offset);
752 qemu_put_be64s(f, &ticks_per_sec);
755 static int timer_load(QEMUFile *f, void *opaque, int version_id)
759 if (cpu_ticks_enabled) {
762 qemu_get_be64s(f, &cpu_ticks_offset);
763 qemu_get_be64s(f, &ticks_per_sec);
768 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
769 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
771 static void host_alarm_handler(int host_signum)
774 if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
775 qemu_get_clock(vm_clock)) ||
776 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
777 qemu_get_clock(rt_clock))) {
778 /* stop the cpu because a timer occured */
779 cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
785 #if defined(__linux__)
787 #define RTC_FREQ 1024
791 static int start_rtc_timer(void)
793 rtc_fd = open("/dev/rtc", O_RDONLY);
796 if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
797 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
798 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
799 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
802 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
807 pit_min_timer_count = PIT_FREQ / RTC_FREQ;
813 static int start_rtc_timer(void)
818 #endif /* !defined(__linux__) */
820 #endif /* !defined(_WIN32) */
822 static void init_timers(void)
824 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
825 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
830 timerID = timeSetEvent(10, // interval (ms)
832 host_alarm_handler, // function
833 (DWORD)&count, // user parameter
834 TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
836 perror("failed timer alarm");
840 pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
843 struct sigaction act;
844 struct itimerval itv;
846 /* get times() syscall frequency */
847 timer_freq = sysconf(_SC_CLK_TCK);
850 sigfillset(&act.sa_mask);
852 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
853 act.sa_flags |= SA_ONSTACK;
855 act.sa_handler = host_alarm_handler;
856 sigaction(SIGALRM, &act, NULL);
858 itv.it_interval.tv_sec = 0;
859 itv.it_interval.tv_usec = 1000;
860 itv.it_value.tv_sec = 0;
861 itv.it_value.tv_usec = 10 * 1000;
862 setitimer(ITIMER_REAL, &itv, NULL);
863 /* we probe the tick duration of the kernel to inform the user if
864 the emulated kernel requested a too high timer frequency */
865 getitimer(ITIMER_REAL, &itv);
867 if (itv.it_interval.tv_usec > 1000) {
868 /* try to use /dev/rtc to have a faster timer */
869 if (start_rtc_timer() < 0)
872 itv.it_interval.tv_sec = 0;
873 itv.it_interval.tv_usec = 0;
874 itv.it_value.tv_sec = 0;
875 itv.it_value.tv_usec = 0;
876 setitimer(ITIMER_REAL, &itv, NULL);
879 sigaction(SIGIO, &act, NULL);
880 fcntl(rtc_fd, F_SETFL, O_ASYNC);
881 fcntl(rtc_fd, F_SETOWN, getpid());
884 pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
891 void quit_timers(void)
894 timeKillEvent(timerID);
898 /***********************************************************/
903 int serial_open_device(void)
910 int serial_open_device(void)
912 char slave_name[1024];
913 int master_fd, slave_fd;
915 if (serial_console == NULL && nographic) {
916 /* use console for serial port */
921 if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
922 fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
925 fprintf(stderr, "Serial port redirected to %s\n", slave_name);
935 /***********************************************************/
936 /* Linux network device redirectors */
938 void hex_dump(FILE *f, const uint8_t *buf, int size)
942 for(i=0;i<size;i+=16) {
946 fprintf(f, "%08x ", i);
949 fprintf(f, " %02x", buf[i+j]);
956 if (c < ' ' || c > '~')
964 void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
966 nd->send_packet(nd, buf, size);
969 void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
970 IOReadHandler *fd_read, void *opaque)
972 nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
975 /* dummy network adapter */
977 static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
981 static void dummy_add_read_packet(NetDriverState *nd,
982 IOCanRWHandler *fd_can_read,
983 IOReadHandler *fd_read, void *opaque)
987 static int net_dummy_init(NetDriverState *nd)
989 nd->send_packet = dummy_send_packet;
990 nd->add_read_packet = dummy_add_read_packet;
991 pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
995 #if defined(CONFIG_SLIRP)
997 /* slirp network adapter */
999 static void *slirp_fd_opaque;
1000 static IOCanRWHandler *slirp_fd_can_read;
1001 static IOReadHandler *slirp_fd_read;
1002 static int slirp_inited;
1004 int slirp_can_output(void)
1006 return slirp_fd_can_read(slirp_fd_opaque);
1009 void slirp_output(const uint8_t *pkt, int pkt_len)
1012 printf("output:\n");
1013 hex_dump(stdout, pkt, pkt_len);
1015 slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
1018 static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1022 hex_dump(stdout, buf, size);
1024 slirp_input(buf, size);
1027 static void slirp_add_read_packet(NetDriverState *nd,
1028 IOCanRWHandler *fd_can_read,
1029 IOReadHandler *fd_read, void *opaque)
1031 slirp_fd_opaque = opaque;
1032 slirp_fd_can_read = fd_can_read;
1033 slirp_fd_read = fd_read;
1036 static int net_slirp_init(NetDriverState *nd)
1038 if (!slirp_inited) {
1042 nd->send_packet = slirp_send_packet;
1043 nd->add_read_packet = slirp_add_read_packet;
1044 pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
1048 #endif /* CONFIG_SLIRP */
1050 #if !defined(_WIN32)
1052 static int tun_open(char *ifname, int ifname_size)
1058 fd = open("/dev/tap", O_RDWR);
1060 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1065 dev = devname(s.st_rdev, S_IFCHR);
1066 pstrcpy(ifname, ifname_size, dev);
1068 fcntl(fd, F_SETFL, O_NONBLOCK);
1072 static int tun_open(char *ifname, int ifname_size)
1077 fd = open("/dev/net/tun", O_RDWR);
1079 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1082 memset(&ifr, 0, sizeof(ifr));
1083 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1084 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
1085 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1087 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1091 printf("Connected to host network interface: %s\n", ifr.ifr_name);
1092 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1093 fcntl(fd, F_SETFL, O_NONBLOCK);
1098 static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1100 write(nd->fd, buf, size);
1103 static void tun_add_read_packet(NetDriverState *nd,
1104 IOCanRWHandler *fd_can_read,
1105 IOReadHandler *fd_read, void *opaque)
1107 qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
1110 static int net_tun_init(NetDriverState *nd)
1116 nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
1120 /* try to launch network init script */
1125 *parg++ = network_script;
1126 *parg++ = nd->ifname;
1128 execv(network_script, args);
1131 while (waitpid(pid, &status, 0) != pid);
1132 if (!WIFEXITED(status) ||
1133 WEXITSTATUS(status) != 0) {
1134 fprintf(stderr, "%s: could not launch network script\n",
1138 nd->send_packet = tun_send_packet;
1139 nd->add_read_packet = tun_add_read_packet;
1143 static int net_fd_init(NetDriverState *nd, int fd)
1146 nd->send_packet = tun_send_packet;
1147 nd->add_read_packet = tun_add_read_packet;
1148 pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
1152 #endif /* !_WIN32 */
1154 /***********************************************************/
1159 static void term_exit(void)
1163 static void term_init(void)
1169 /* init terminal so that we can grab keys */
1170 static struct termios oldtty;
1172 static void term_exit(void)
1174 tcsetattr (0, TCSANOW, &oldtty);
1177 static void term_init(void)
1181 tcgetattr (0, &tty);
1184 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1185 |INLCR|IGNCR|ICRNL|IXON);
1186 tty.c_oflag |= OPOST;
1187 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1188 /* if graphical mode, we allow Ctrl-C handling */
1190 tty.c_lflag &= ~ISIG;
1191 tty.c_cflag &= ~(CSIZE|PARENB);
1194 tty.c_cc[VTIME] = 0;
1196 tcsetattr (0, TCSANOW, &tty);
1200 fcntl(0, F_SETFL, O_NONBLOCK);
1205 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
1209 static void dumb_resize(DisplayState *ds, int w, int h)
1213 static void dumb_refresh(DisplayState *ds)
1215 vga_update_display();
1218 void dumb_display_init(DisplayState *ds)
1223 ds->dpy_update = dumb_update;
1224 ds->dpy_resize = dumb_resize;
1225 ds->dpy_refresh = dumb_refresh;
1228 #if !defined(CONFIG_SOFTMMU)
1229 /***********************************************************/
1230 /* cpu signal handler */
1231 static void host_segv_handler(int host_signum, siginfo_t *info,
1234 if (cpu_signal_handler(host_signum, info, puc))
1241 /***********************************************************/
1244 #define MAX_IO_HANDLERS 64
1246 typedef struct IOHandlerRecord {
1248 IOCanRWHandler *fd_can_read;
1249 IOReadHandler *fd_read;
1251 /* temporary data */
1254 struct IOHandlerRecord *next;
1257 static IOHandlerRecord *first_io_handler;
1259 int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
1260 IOReadHandler *fd_read, void *opaque)
1262 IOHandlerRecord *ioh;
1264 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1268 ioh->fd_can_read = fd_can_read;
1269 ioh->fd_read = fd_read;
1270 ioh->opaque = opaque;
1271 ioh->next = first_io_handler;
1272 first_io_handler = ioh;
1276 void qemu_del_fd_read_handler(int fd)
1278 IOHandlerRecord **pioh, *ioh;
1280 pioh = &first_io_handler;
1285 if (ioh->fd == fd) {
1293 /***********************************************************/
1294 /* savevm/loadvm support */
1296 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
1298 fwrite(buf, 1, size, f);
1301 void qemu_put_byte(QEMUFile *f, int v)
1306 void qemu_put_be16(QEMUFile *f, unsigned int v)
1308 qemu_put_byte(f, v >> 8);
1309 qemu_put_byte(f, v);
1312 void qemu_put_be32(QEMUFile *f, unsigned int v)
1314 qemu_put_byte(f, v >> 24);
1315 qemu_put_byte(f, v >> 16);
1316 qemu_put_byte(f, v >> 8);
1317 qemu_put_byte(f, v);
1320 void qemu_put_be64(QEMUFile *f, uint64_t v)
1322 qemu_put_be32(f, v >> 32);
1323 qemu_put_be32(f, v);
1326 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
1328 return fread(buf, 1, size, f);
1331 int qemu_get_byte(QEMUFile *f)
1341 unsigned int qemu_get_be16(QEMUFile *f)
1344 v = qemu_get_byte(f) << 8;
1345 v |= qemu_get_byte(f);
1349 unsigned int qemu_get_be32(QEMUFile *f)
1352 v = qemu_get_byte(f) << 24;
1353 v |= qemu_get_byte(f) << 16;
1354 v |= qemu_get_byte(f) << 8;
1355 v |= qemu_get_byte(f);
1359 uint64_t qemu_get_be64(QEMUFile *f)
1362 v = (uint64_t)qemu_get_be32(f) << 32;
1363 v |= qemu_get_be32(f);
1367 int64_t qemu_ftell(QEMUFile *f)
1372 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
1374 if (fseek(f, pos, whence) < 0)
1379 typedef struct SaveStateEntry {
1383 SaveStateHandler *save_state;
1384 LoadStateHandler *load_state;
1386 struct SaveStateEntry *next;
1389 static SaveStateEntry *first_se;
1391 int register_savevm(const char *idstr,
1394 SaveStateHandler *save_state,
1395 LoadStateHandler *load_state,
1398 SaveStateEntry *se, **pse;
1400 se = qemu_malloc(sizeof(SaveStateEntry));
1403 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
1404 se->instance_id = instance_id;
1405 se->version_id = version_id;
1406 se->save_state = save_state;
1407 se->load_state = load_state;
1408 se->opaque = opaque;
1411 /* add at the end of list */
1413 while (*pse != NULL)
1414 pse = &(*pse)->next;
1419 #define QEMU_VM_FILE_MAGIC 0x5145564d
1420 #define QEMU_VM_FILE_VERSION 0x00000001
1422 int qemu_savevm(const char *filename)
1426 int len, len_pos, cur_pos, saved_vm_running, ret;
1428 saved_vm_running = vm_running;
1431 f = fopen(filename, "wb");
1437 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
1438 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
1440 for(se = first_se; se != NULL; se = se->next) {
1442 len = strlen(se->idstr);
1443 qemu_put_byte(f, len);
1444 qemu_put_buffer(f, se->idstr, len);
1446 qemu_put_be32(f, se->instance_id);
1447 qemu_put_be32(f, se->version_id);
1449 /* record size: filled later */
1451 qemu_put_be32(f, 0);
1453 se->save_state(f, se->opaque);
1455 /* fill record size */
1457 len = ftell(f) - len_pos - 4;
1458 fseek(f, len_pos, SEEK_SET);
1459 qemu_put_be32(f, len);
1460 fseek(f, cur_pos, SEEK_SET);
1466 if (saved_vm_running)
1471 static SaveStateEntry *find_se(const char *idstr, int instance_id)
1475 for(se = first_se; se != NULL; se = se->next) {
1476 if (!strcmp(se->idstr, idstr) &&
1477 instance_id == se->instance_id)
1483 int qemu_loadvm(const char *filename)
1487 int len, cur_pos, ret, instance_id, record_len, version_id;
1488 int saved_vm_running;
1492 saved_vm_running = vm_running;
1495 f = fopen(filename, "rb");
1501 v = qemu_get_be32(f);
1502 if (v != QEMU_VM_FILE_MAGIC)
1504 v = qemu_get_be32(f);
1505 if (v != QEMU_VM_FILE_VERSION) {
1512 #if defined (DO_TB_FLUSH)
1513 tb_flush(global_env);
1515 len = qemu_get_byte(f);
1518 qemu_get_buffer(f, idstr, len);
1520 instance_id = qemu_get_be32(f);
1521 version_id = qemu_get_be32(f);
1522 record_len = qemu_get_be32(f);
1524 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1525 idstr, instance_id, version_id, record_len);
1528 se = find_se(idstr, instance_id);
1530 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1531 instance_id, idstr);
1533 ret = se->load_state(f, se->opaque, version_id);
1535 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1536 instance_id, idstr);
1539 /* always seek to exact end of record */
1540 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
1545 if (saved_vm_running)
1550 /***********************************************************/
1551 /* cpu save/restore */
1553 #if defined(TARGET_I386)
1555 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
1557 qemu_put_be32(f, (uint32_t)dt->base);
1558 qemu_put_be32(f, dt->limit);
1559 qemu_put_be32(f, dt->flags);
1562 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
1564 dt->base = (uint8_t *)qemu_get_be32(f);
1565 dt->limit = qemu_get_be32(f);
1566 dt->flags = qemu_get_be32(f);
1569 void cpu_save(QEMUFile *f, void *opaque)
1571 CPUState *env = opaque;
1572 uint16_t fptag, fpus, fpuc;
1576 for(i = 0; i < 8; i++)
1577 qemu_put_be32s(f, &env->regs[i]);
1578 qemu_put_be32s(f, &env->eip);
1579 qemu_put_be32s(f, &env->eflags);
1580 qemu_put_be32s(f, &env->eflags);
1581 hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
1582 qemu_put_be32s(f, &hflags);
1586 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1588 for (i=7; i>=0; i--) {
1590 if (env->fptags[i]) {
1595 qemu_put_be16s(f, &fpuc);
1596 qemu_put_be16s(f, &fpus);
1597 qemu_put_be16s(f, &fptag);
1599 for(i = 0; i < 8; i++) {
1602 cpu_get_fp80(&mant, &exp, env->fpregs[i]);
1603 qemu_put_be64(f, mant);
1604 qemu_put_be16(f, exp);
1607 for(i = 0; i < 6; i++)
1608 cpu_put_seg(f, &env->segs[i]);
1609 cpu_put_seg(f, &env->ldt);
1610 cpu_put_seg(f, &env->tr);
1611 cpu_put_seg(f, &env->gdt);
1612 cpu_put_seg(f, &env->idt);
1614 qemu_put_be32s(f, &env->sysenter_cs);
1615 qemu_put_be32s(f, &env->sysenter_esp);
1616 qemu_put_be32s(f, &env->sysenter_eip);
1618 qemu_put_be32s(f, &env->cr[0]);
1619 qemu_put_be32s(f, &env->cr[2]);
1620 qemu_put_be32s(f, &env->cr[3]);
1621 qemu_put_be32s(f, &env->cr[4]);
1623 for(i = 0; i < 8; i++)
1624 qemu_put_be32s(f, &env->dr[i]);
1627 qemu_put_be32s(f, &env->a20_mask);
1630 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1632 CPUState *env = opaque;
1635 uint16_t fpus, fpuc, fptag;
1637 if (version_id != 1)
1639 for(i = 0; i < 8; i++)
1640 qemu_get_be32s(f, &env->regs[i]);
1641 qemu_get_be32s(f, &env->eip);
1642 qemu_get_be32s(f, &env->eflags);
1643 qemu_get_be32s(f, &env->eflags);
1644 qemu_get_be32s(f, &hflags);
1646 qemu_get_be16s(f, &fpuc);
1647 qemu_get_be16s(f, &fpus);
1648 qemu_get_be16s(f, &fptag);
1650 for(i = 0; i < 8; i++) {
1653 mant = qemu_get_be64(f);
1654 exp = qemu_get_be16(f);
1655 env->fpregs[i] = cpu_set_fp80(mant, exp);
1659 env->fpstt = (fpus >> 11) & 7;
1660 env->fpus = fpus & ~0x3800;
1661 for(i = 0; i < 8; i++) {
1662 env->fptags[i] = ((fptag & 3) == 3);
1666 for(i = 0; i < 6; i++)
1667 cpu_get_seg(f, &env->segs[i]);
1668 cpu_get_seg(f, &env->ldt);
1669 cpu_get_seg(f, &env->tr);
1670 cpu_get_seg(f, &env->gdt);
1671 cpu_get_seg(f, &env->idt);
1673 qemu_get_be32s(f, &env->sysenter_cs);
1674 qemu_get_be32s(f, &env->sysenter_esp);
1675 qemu_get_be32s(f, &env->sysenter_eip);
1677 qemu_get_be32s(f, &env->cr[0]);
1678 qemu_get_be32s(f, &env->cr[2]);
1679 qemu_get_be32s(f, &env->cr[3]);
1680 qemu_get_be32s(f, &env->cr[4]);
1682 for(i = 0; i < 8; i++)
1683 qemu_get_be32s(f, &env->dr[i]);
1686 qemu_get_be32s(f, &env->a20_mask);
1688 /* XXX: compute hflags from scratch, except for CPL and IIF */
1689 env->hflags = hflags;
1694 #elif defined(TARGET_PPC)
1695 void cpu_save(QEMUFile *f, void *opaque)
1699 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1705 #warning No CPU save/restore functions
1709 /***********************************************************/
1710 /* ram save/restore */
1712 /* we just avoid storing empty pages */
1713 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
1718 for(i = 1; i < len; i++) {
1722 qemu_put_byte(f, 1);
1723 qemu_put_byte(f, v);
1726 qemu_put_byte(f, 0);
1727 qemu_put_buffer(f, buf, len);
1730 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
1734 v = qemu_get_byte(f);
1737 if (qemu_get_buffer(f, buf, len) != len)
1741 v = qemu_get_byte(f);
1742 memset(buf, v, len);
1750 static void ram_save(QEMUFile *f, void *opaque)
1753 qemu_put_be32(f, phys_ram_size);
1754 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1755 ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1759 static int ram_load(QEMUFile *f, void *opaque, int version_id)
1763 if (version_id != 1)
1765 if (qemu_get_be32(f) != phys_ram_size)
1767 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1768 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1775 /***********************************************************/
1776 /* main execution loop */
1778 void gui_update(void *opaque)
1780 display_state.dpy_refresh(&display_state);
1781 qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
1784 /* XXX: support several handlers */
1785 VMStopHandler *vm_stop_cb;
1786 VMStopHandler *vm_stop_opaque;
1788 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
1791 vm_stop_opaque = opaque;
1795 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
1808 void vm_stop(int reason)
1811 cpu_disable_ticks();
1815 vm_stop_cb(vm_stop_opaque, reason);
1824 struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
1825 IOHandlerRecord *ioh, *ioh_next;
1830 CPUState *env = global_env;
1834 ret = cpu_exec(env);
1835 if (reset_requested) {
1836 ret = EXCP_INTERRUPT;
1839 if (ret == EXCP_DEBUG) {
1840 vm_stop(EXCP_DEBUG);
1842 /* if hlt instruction, we wait until the next IRQ */
1843 /* XXX: use timeout computed from timers */
1844 if (ret == EXCP_HLT)
1857 /* poll any events */
1858 /* XXX: separate device handlers from system ones */
1860 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
1861 if (!ioh->fd_can_read) {
1864 pf->events = POLLIN;
1868 max_size = ioh->fd_can_read(ioh->opaque);
1870 if (max_size > sizeof(buf))
1871 max_size = sizeof(buf);
1873 pf->events = POLLIN;
1880 ioh->max_size = max_size;
1883 ret = poll(ufds, pf - ufds, timeout);
1885 /* XXX: better handling of removal */
1886 for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
1887 ioh_next = ioh->next;
1890 if (pf->revents & POLLIN) {
1891 if (ioh->max_size == 0) {
1892 /* just a read event */
1893 ioh->fd_read(ioh->opaque, NULL, 0);
1895 n = read(ioh->fd, buf, ioh->max_size);
1897 ioh->fd_read(ioh->opaque, buf, n);
1898 } else if (errno != EAGAIN) {
1899 ioh->fd_read(ioh->opaque, NULL, -errno);
1907 #if defined(CONFIG_SLIRP)
1908 /* XXX: merge with poll() */
1910 fd_set rfds, wfds, xfds;
1918 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1921 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1923 slirp_select_poll(&rfds, &wfds, &xfds);
1931 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
1932 qemu_get_clock(vm_clock));
1934 if (audio_enabled) {
1935 /* XXX: add explicit timer */
1939 /* run dma transfers, if any */
1943 /* real time timers */
1944 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
1945 qemu_get_clock(rt_clock));
1947 cpu_disable_ticks();
1953 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
1954 "usage: %s [options] [disk_image]\n"
1956 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
1958 "Standard options:\n"
1959 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
1960 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
1961 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
1962 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
1963 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
1964 "-snapshot write to temporary files instead of disk image files\n"
1965 "-m megs set virtual RAM size to megs MB [default=%d]\n"
1966 "-nographic disable graphical output and redirect serial I/Os to console\n"
1967 "-enable-audio enable audio support\n"
1968 "-localtime set the real time clock to local time [default=utc]\n"
1970 "Network options:\n"
1971 "-nics n simulate 'n' network cards [default=1]\n"
1972 "-macaddr addr set the mac address of the first interface\n"
1973 "-n script set tap/tun network init script [default=%s]\n"
1974 "-tun-fd fd use this fd as already opened tap/tun interface\n"
1976 "-user-net use user mode network stack [default if no tap/tun script]\n"
1978 "-dummy-net use dummy network stack\n"
1980 "Linux boot specific:\n"
1981 "-kernel bzImage use 'bzImage' as kernel image\n"
1982 "-append cmdline use 'cmdline' as kernel command line\n"
1983 "-initrd file use 'file' as initial ram disk\n"
1985 "Debug/Expert options:\n"
1986 "-S freeze CPU at startup (use 'c' to start execution)\n"
1987 "-s wait gdb connection to port %d\n"
1988 "-p port change gdb connection port\n"
1989 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
1990 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
1991 "-L path set the directory for the BIOS and VGA BIOS\n"
1992 #ifdef USE_CODE_COPY
1993 "-no-code-copy disable code copy acceleration\n"
1997 "During emulation, use C-a h to get terminal commands:\n",
1998 #ifdef CONFIG_SOFTMMU
2004 DEFAULT_NETWORK_SCRIPT,
2005 DEFAULT_GDBSTUB_PORT,
2008 #ifndef CONFIG_SOFTMMU
2010 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
2011 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
2017 #define HAS_ARG 0x0001
2030 QEMU_OPTION_snapshot,
2032 QEMU_OPTION_nographic,
2033 QEMU_OPTION_enable_audio,
2036 QEMU_OPTION_macaddr,
2039 QEMU_OPTION_user_net,
2040 QEMU_OPTION_dummy_net,
2052 QEMU_OPTION_no_code_copy,
2055 QEMU_OPTION_localtime,
2058 typedef struct QEMUOption {
2064 const QEMUOption qemu_options[] = {
2065 { "h", 0, QEMU_OPTION_h },
2067 { "fda", HAS_ARG, QEMU_OPTION_fda },
2068 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
2069 { "hda", HAS_ARG, QEMU_OPTION_hda },
2070 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
2071 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
2072 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
2073 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
2074 { "boot", HAS_ARG, QEMU_OPTION_boot },
2075 { "snapshot", 0, QEMU_OPTION_snapshot },
2076 { "m", HAS_ARG, QEMU_OPTION_m },
2077 { "nographic", 0, QEMU_OPTION_nographic },
2078 { "enable-audio", 0, QEMU_OPTION_enable_audio },
2080 { "nics", HAS_ARG, QEMU_OPTION_nics},
2081 { "macaddr", HAS_ARG, QEMU_OPTION_macaddr},
2082 { "n", HAS_ARG, QEMU_OPTION_n },
2083 { "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd },
2085 { "user-net", 0, QEMU_OPTION_user_net },
2087 { "dummy-net", 0, QEMU_OPTION_dummy_net },
2089 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
2090 { "append", HAS_ARG, QEMU_OPTION_append },
2091 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
2093 { "S", 0, QEMU_OPTION_S },
2094 { "s", 0, QEMU_OPTION_s },
2095 { "p", HAS_ARG, QEMU_OPTION_p },
2096 { "d", HAS_ARG, QEMU_OPTION_d },
2097 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
2098 { "L", HAS_ARG, QEMU_OPTION_L },
2099 { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
2101 /* temporary options */
2102 { "pci", 0, QEMU_OPTION_pci },
2104 { "prep", 0, QEMU_OPTION_prep },
2106 { "localtime", 0, QEMU_OPTION_localtime },
2110 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2112 /* this stack is only used during signal handling */
2113 #define SIGNAL_STACK_SIZE 32768
2115 static uint8_t *signal_stack;
2119 #define NET_IF_TUN 0
2120 #define NET_IF_USER 1
2121 #define NET_IF_DUMMY 2
2123 int main(int argc, char **argv)
2125 #ifdef CONFIG_GDBSTUB
2126 int use_gdbstub, gdbstub_port;
2129 int snapshot, linux_boot;
2131 const char *initrd_filename;
2132 const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
2133 const char *kernel_filename, *kernel_cmdline;
2134 DisplayState *ds = &display_state;
2135 int cyls, heads, secs;
2136 int start_emulation = 1;
2138 int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
2140 const char *r, *optarg;
2142 #if !defined(CONFIG_SOFTMMU)
2143 /* we never want that malloc() uses mmap() */
2144 mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
2146 initrd_filename = NULL;
2147 for(i = 0; i < MAX_FD; i++)
2148 fd_filename[i] = NULL;
2149 for(i = 0; i < MAX_DISKS; i++)
2150 hd_filename[i] = NULL;
2151 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
2152 vga_ram_size = VGA_RAM_SIZE;
2153 bios_size = BIOS_SIZE;
2154 pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
2155 #ifdef CONFIG_GDBSTUB
2157 gdbstub_port = DEFAULT_GDBSTUB_PORT;
2161 kernel_filename = NULL;
2162 kernel_cmdline = "";
2164 cyls = heads = secs = 0;
2169 /* default mac address of the first network interface */
2183 hd_filename[0] = argv[optind++];
2185 const QEMUOption *popt;
2188 popt = qemu_options;
2191 fprintf(stderr, "%s: invalid option -- '%s'\n",
2195 if (!strcmp(popt->name, r + 1))
2199 if (popt->flags & HAS_ARG) {
2200 if (optind >= argc) {
2201 fprintf(stderr, "%s: option '%s' requires an argument\n",
2205 optarg = argv[optind++];
2210 switch(popt->index) {
2211 case QEMU_OPTION_initrd:
2212 initrd_filename = optarg;
2214 case QEMU_OPTION_hda:
2215 hd_filename[0] = optarg;
2217 case QEMU_OPTION_hdb:
2218 hd_filename[1] = optarg;
2220 case QEMU_OPTION_snapshot:
2223 case QEMU_OPTION_hdachs:
2227 cyls = strtol(p, (char **)&p, 0);
2231 heads = strtol(p, (char **)&p, 0);
2235 secs = strtol(p, (char **)&p, 0);
2242 case QEMU_OPTION_nographic:
2245 case QEMU_OPTION_kernel:
2246 kernel_filename = optarg;
2248 case QEMU_OPTION_append:
2249 kernel_cmdline = optarg;
2251 case QEMU_OPTION_tun_fd:
2255 net_if_type = NET_IF_TUN;
2256 if (nb_tun_fds < MAX_NICS) {
2257 fd = strtol(optarg, (char **)&p, 0);
2259 fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
2262 tun_fds[nb_tun_fds++] = fd;
2266 case QEMU_OPTION_hdc:
2267 hd_filename[2] = optarg;
2270 case QEMU_OPTION_hdd:
2271 hd_filename[3] = optarg;
2273 case QEMU_OPTION_cdrom:
2274 hd_filename[2] = optarg;
2277 case QEMU_OPTION_boot:
2278 boot_device = optarg[0];
2279 if (boot_device != 'a' && boot_device != 'b' &&
2280 boot_device != 'c' && boot_device != 'd') {
2281 fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
2285 case QEMU_OPTION_fda:
2286 fd_filename[0] = optarg;
2288 case QEMU_OPTION_fdb:
2289 fd_filename[1] = optarg;
2291 case QEMU_OPTION_no_code_copy:
2292 code_copy_enabled = 0;
2294 case QEMU_OPTION_nics:
2295 nb_nics = atoi(optarg);
2296 if (nb_nics < 0 || nb_nics > MAX_NICS) {
2297 fprintf(stderr, "qemu: invalid number of network interfaces\n");
2301 case QEMU_OPTION_macaddr:
2306 for(i = 0; i < 6; i++) {
2307 macaddr[i] = strtol(p, (char **)&p, 16);
2314 fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
2322 case QEMU_OPTION_user_net:
2323 net_if_type = NET_IF_USER;
2325 case QEMU_OPTION_dummy_net:
2326 net_if_type = NET_IF_DUMMY;
2328 case QEMU_OPTION_enable_audio:
2335 ram_size = atoi(optarg) * 1024 * 1024;
2338 if (ram_size > PHYS_RAM_MAX_SIZE) {
2339 fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
2340 PHYS_RAM_MAX_SIZE / (1024 * 1024));
2349 mask = cpu_str_to_log_mask(optarg);
2351 printf("Log items (comma separated):\n");
2352 for(item = cpu_log_items; item->mask != 0; item++) {
2353 printf("%-10s %s\n", item->name, item->help);
2361 pstrcpy(network_script, sizeof(network_script), optarg);
2363 #ifdef CONFIG_GDBSTUB
2368 gdbstub_port = atoi(optarg);
2375 start_emulation = 0;
2377 case QEMU_OPTION_pci:
2380 case QEMU_OPTION_prep:
2383 case QEMU_OPTION_localtime:
2390 linux_boot = (kernel_filename != NULL);
2392 if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
2393 fd_filename[0] == '\0')
2396 /* boot to cd by default if no hard disk */
2397 if (hd_filename[0] == '\0' && boot_device == 'c') {
2398 if (fd_filename[0] != '\0')
2404 #if !defined(CONFIG_SOFTMMU)
2405 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2407 static uint8_t stdout_buf[4096];
2408 setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
2411 setvbuf(stdout, NULL, _IOLBF, 0);
2414 /* init host network redirectors */
2415 if (net_if_type == -1) {
2416 net_if_type = NET_IF_TUN;
2417 #if defined(CONFIG_SLIRP)
2418 if (access(network_script, R_OK) < 0) {
2419 net_if_type = NET_IF_USER;
2424 for(i = 0; i < nb_nics; i++) {
2425 NetDriverState *nd = &nd_table[i];
2427 /* init virtual mac address */
2428 nd->macaddr[0] = macaddr[0];
2429 nd->macaddr[1] = macaddr[1];
2430 nd->macaddr[2] = macaddr[2];
2431 nd->macaddr[3] = macaddr[3];
2432 nd->macaddr[4] = macaddr[4];
2433 nd->macaddr[5] = macaddr[5] + i;
2434 switch(net_if_type) {
2435 #if defined(CONFIG_SLIRP)
2440 #if !defined(_WIN32)
2442 if (i < nb_tun_fds) {
2443 net_fd_init(nd, tun_fds[i]);
2445 if (net_tun_init(nd) < 0)
2457 /* init the memory */
2458 phys_ram_size = ram_size + vga_ram_size + bios_size;
2460 #ifdef CONFIG_SOFTMMU
2462 /* mallocs are always aligned on BSD. */
2463 phys_ram_base = malloc(phys_ram_size);
2465 phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
2467 if (!phys_ram_base) {
2468 fprintf(stderr, "Could not allocate physical memory\n");
2472 /* as we must map the same page at several addresses, we must use
2477 tmpdir = getenv("QEMU_TMPDIR");
2480 snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
2481 if (mkstemp(phys_ram_file) < 0) {
2482 fprintf(stderr, "Could not create temporary memory file '%s'\n",
2486 phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
2487 if (phys_ram_fd < 0) {
2488 fprintf(stderr, "Could not open temporary memory file '%s'\n",
2492 ftruncate(phys_ram_fd, phys_ram_size);
2493 unlink(phys_ram_file);
2494 phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
2496 PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
2498 if (phys_ram_base == MAP_FAILED) {
2499 fprintf(stderr, "Could not map physical memory\n");
2505 /* we always create the cdrom drive, even if no disk is there */
2507 bs_table[2] = bdrv_new("cdrom");
2508 bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
2511 /* open the virtual block devices */
2512 for(i = 0; i < MAX_DISKS; i++) {
2513 if (hd_filename[i]) {
2516 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
2517 bs_table[i] = bdrv_new(buf);
2519 if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
2520 fprintf(stderr, "qemu: could not open hard disk image '%s\n",
2524 if (i == 0 && cyls != 0)
2525 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
2529 /* we always create at least one floppy disk */
2530 fd_table[0] = bdrv_new("fda");
2531 bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
2533 for(i = 0; i < MAX_FD; i++) {
2534 if (fd_filename[i]) {
2537 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
2538 fd_table[i] = bdrv_new(buf);
2539 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
2541 if (fd_filename[i] != '\0') {
2542 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
2543 fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
2551 /* init CPU state */
2554 cpu_single_env = env;
2556 register_savevm("timer", 0, 1, timer_save, timer_load, env);
2557 register_savevm("cpu", 0, 1, cpu_save, cpu_load, env);
2558 register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
2561 cpu_calibrate_ticks();
2565 dumb_display_init(ds);
2568 sdl_display_init(ds);
2570 dumb_display_init(ds);
2574 /* setup cpu signal handlers for MMU / self modifying code handling */
2575 #if !defined(CONFIG_SOFTMMU)
2577 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2580 signal_stack = memalign(16, SIGNAL_STACK_SIZE);
2581 stk.ss_sp = signal_stack;
2582 stk.ss_size = SIGNAL_STACK_SIZE;
2585 if (sigaltstack(&stk, NULL) < 0) {
2586 perror("sigaltstack");
2592 struct sigaction act;
2594 sigfillset(&act.sa_mask);
2595 act.sa_flags = SA_SIGINFO;
2596 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2597 act.sa_flags |= SA_ONSTACK;
2599 act.sa_sigaction = host_segv_handler;
2600 sigaction(SIGSEGV, &act, NULL);
2601 sigaction(SIGBUS, &act, NULL);
2602 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2603 sigaction(SIGFPE, &act, NULL);
2610 struct sigaction act;
2611 sigfillset(&act.sa_mask);
2613 act.sa_handler = SIG_IGN;
2614 sigaction(SIGPIPE, &act, NULL);
2619 #if defined(TARGET_I386)
2620 pc_init(ram_size, vga_ram_size, boot_device,
2621 ds, fd_filename, snapshot,
2622 kernel_filename, kernel_cmdline, initrd_filename);
2623 #elif defined(TARGET_PPC)
2624 ppc_init(ram_size, vga_ram_size, boot_device,
2625 ds, fd_filename, snapshot,
2626 kernel_filename, kernel_cmdline, initrd_filename);
2629 /* launched after the device init so that it can display or not a
2633 gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
2634 qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
2636 #ifdef CONFIG_GDBSTUB
2638 if (gdbserver_start(gdbstub_port) < 0) {
2639 fprintf(stderr, "Could not open gdbserver socket on port %d\n",
2643 printf("Waiting gdb connection on port %d\n", gdbstub_port);
2647 if (start_emulation)