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
36 #include <sys/times.h>
42 #include <sys/ioctl.h>
43 #include <sys/socket.h>
45 #include <linux/if_tun.h>
48 #if defined(CONFIG_SLIRP)
53 #include <sys/timeb.h>
55 #define getopt_long_only getopt_long
56 #define memalign(align, size) malloc(size)
60 /* SDL use the pthreads and they modify sigaction. We don't
62 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
63 extern void __libc_sigaction();
64 #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
66 extern void __sigaction();
67 #define sigaction(sig, act, oact) __sigaction(sig, act, oact)
69 #endif /* CONFIG_SDL */
77 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
79 //#define DEBUG_UNUSED_IOPORT
81 #if !defined(CONFIG_SOFTMMU)
82 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
84 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
88 #define GUI_REFRESH_INTERVAL 30
90 /* XXX: use a two level table to limit memory usage */
91 #define MAX_IOPORTS 65536
93 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
94 char phys_ram_file[1024];
96 CPUState *cpu_single_env;
97 void *ioport_opaque[MAX_IOPORTS];
98 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
99 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
100 BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
102 static DisplayState display_state;
104 int64_t ticks_per_sec;
105 int boot_device = 'c';
107 static char network_script[1024];
108 int pit_min_timer_count = 0;
110 NetDriverState nd_table[MAX_NICS];
111 SerialState *serial_console;
112 QEMUTimer *gui_timer;
115 /***********************************************************/
118 uint32_t default_ioport_readb(void *opaque, uint32_t address)
120 #ifdef DEBUG_UNUSED_IOPORT
121 fprintf(stderr, "inb: port=0x%04x\n", address);
126 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
128 #ifdef DEBUG_UNUSED_IOPORT
129 fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
133 /* default is to make two byte accesses */
134 uint32_t default_ioport_readw(void *opaque, uint32_t address)
137 data = ioport_read_table[0][address & (MAX_IOPORTS - 1)](opaque, address);
138 data |= ioport_read_table[0][(address + 1) & (MAX_IOPORTS - 1)](opaque, address + 1) << 8;
142 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
144 ioport_write_table[0][address & (MAX_IOPORTS - 1)](opaque, address, data & 0xff);
145 ioport_write_table[0][(address + 1) & (MAX_IOPORTS - 1)](opaque, address + 1, (data >> 8) & 0xff);
148 uint32_t default_ioport_readl(void *opaque, uint32_t address)
150 #ifdef DEBUG_UNUSED_IOPORT
151 fprintf(stderr, "inl: port=0x%04x\n", address);
156 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
158 #ifdef DEBUG_UNUSED_IOPORT
159 fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
163 void init_ioports(void)
167 for(i = 0; i < MAX_IOPORTS; i++) {
168 ioport_read_table[0][i] = default_ioport_readb;
169 ioport_write_table[0][i] = default_ioport_writeb;
170 ioport_read_table[1][i] = default_ioport_readw;
171 ioport_write_table[1][i] = default_ioport_writew;
172 ioport_read_table[2][i] = default_ioport_readl;
173 ioport_write_table[2][i] = default_ioport_writel;
177 /* size is the word size in byte */
178 int register_ioport_read(int start, int length, int size,
179 IOPortReadFunc *func, void *opaque)
185 } else if (size == 2) {
187 } else if (size == 4) {
190 hw_error("register_ioport_read: invalid size");
193 for(i = start; i < start + length; i += size) {
194 ioport_read_table[bsize][i] = func;
195 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
196 hw_error("register_ioport_read: invalid opaque");
197 ioport_opaque[i] = opaque;
202 /* size is the word size in byte */
203 int register_ioport_write(int start, int length, int size,
204 IOPortWriteFunc *func, void *opaque)
210 } else if (size == 2) {
212 } else if (size == 4) {
215 hw_error("register_ioport_write: invalid size");
218 for(i = start; i < start + length; i += size) {
219 ioport_write_table[bsize][i] = func;
220 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
221 hw_error("register_ioport_read: invalid opaque");
222 ioport_opaque[i] = opaque;
227 void pstrcpy(char *buf, int buf_size, const char *str)
237 if (c == 0 || q >= buf + buf_size - 1)
244 /* strcat and truncate. */
245 char *pstrcat(char *buf, int buf_size, const char *s)
250 pstrcpy(buf + len, buf_size - len, s);
254 /* return the size or -1 if error */
255 int load_image(const char *filename, uint8_t *addr)
258 fd = open(filename, O_RDONLY | O_BINARY);
261 size = lseek(fd, 0, SEEK_END);
262 lseek(fd, 0, SEEK_SET);
263 if (read(fd, addr, size) != size) {
271 void cpu_outb(CPUState *env, int addr, int val)
273 addr &= (MAX_IOPORTS - 1);
274 ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
277 void cpu_outw(CPUState *env, int addr, int val)
279 addr &= (MAX_IOPORTS - 1);
280 ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
283 void cpu_outl(CPUState *env, int addr, int val)
285 addr &= (MAX_IOPORTS - 1);
286 ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
289 int cpu_inb(CPUState *env, int addr)
291 addr &= (MAX_IOPORTS - 1);
292 return ioport_read_table[0][addr](ioport_opaque[addr], addr);
295 int cpu_inw(CPUState *env, int addr)
297 addr &= (MAX_IOPORTS - 1);
298 return ioport_read_table[1][addr](ioport_opaque[addr], addr);
301 int cpu_inl(CPUState *env, int addr)
303 addr &= (MAX_IOPORTS - 1);
304 return ioport_read_table[2][addr](ioport_opaque[addr], addr);
307 /***********************************************************/
308 void hw_error(const char *fmt, ...)
313 fprintf(stderr, "qemu: hardware error: ");
314 vfprintf(stderr, fmt, ap);
315 fprintf(stderr, "\n");
317 cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
319 cpu_dump_state(global_env, stderr, 0);
325 /***********************************************************/
328 #if defined(__powerpc__)
330 static inline uint32_t get_tbl(void)
333 asm volatile("mftb %0" : "=r" (tbl));
337 static inline uint32_t get_tbu(void)
340 asm volatile("mftbu %0" : "=r" (tbl));
344 int64_t cpu_get_real_ticks(void)
347 /* NOTE: we test if wrapping has occurred */
353 return ((int64_t)h << 32) | l;
356 #elif defined(__i386__)
358 int64_t cpu_get_real_ticks(void)
361 asm volatile ("rdtsc" : "=A" (val));
365 #elif defined(__x86_64__)
367 int64_t cpu_get_real_ticks(void)
371 asm volatile("rdtsc" : "=a" (low), "=d" (high));
379 #error unsupported CPU
382 static int64_t cpu_ticks_offset;
383 static int cpu_ticks_enabled;
385 static inline int64_t cpu_get_ticks(void)
387 if (!cpu_ticks_enabled) {
388 return cpu_ticks_offset;
390 return cpu_get_real_ticks() + cpu_ticks_offset;
394 /* enable cpu_get_ticks() */
395 void cpu_enable_ticks(void)
397 if (!cpu_ticks_enabled) {
398 cpu_ticks_offset -= cpu_get_real_ticks();
399 cpu_ticks_enabled = 1;
403 /* disable cpu_get_ticks() : the clock is stopped. You must not call
404 cpu_get_ticks() after that. */
405 void cpu_disable_ticks(void)
407 if (cpu_ticks_enabled) {
408 cpu_ticks_offset = cpu_get_ticks();
409 cpu_ticks_enabled = 0;
413 static int64_t get_clock(void)
418 return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
421 gettimeofday(&tv, NULL);
422 return tv.tv_sec * 1000000LL + tv.tv_usec;
426 void cpu_calibrate_ticks(void)
431 ticks = cpu_get_real_ticks();
437 usec = get_clock() - usec;
438 ticks = cpu_get_real_ticks() - ticks;
439 ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
442 /* compute with 96 bit intermediate result: (a*b)/c */
443 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
448 #ifdef WORDS_BIGENDIAN
458 rl = (uint64_t)u.l.low * (uint64_t)b;
459 rh = (uint64_t)u.l.high * (uint64_t)b;
462 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
466 #define QEMU_TIMER_REALTIME 0
467 #define QEMU_TIMER_VIRTUAL 1
471 /* XXX: add frequency */
479 struct QEMUTimer *next;
485 static QEMUTimer *active_timers[2];
487 static MMRESULT timerID;
489 /* frequency of the times() clock tick */
490 static int timer_freq;
493 QEMUClock *qemu_new_clock(int type)
496 clock = qemu_mallocz(sizeof(QEMUClock));
503 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
507 ts = qemu_mallocz(sizeof(QEMUTimer));
514 void qemu_free_timer(QEMUTimer *ts)
519 /* stop a timer, but do not dealloc it */
520 void qemu_del_timer(QEMUTimer *ts)
524 /* NOTE: this code must be signal safe because
525 qemu_timer_expired() can be called from a signal. */
526 pt = &active_timers[ts->clock->type];
539 /* modify the current timer so that it will be fired when current_time
540 >= expire_time. The corresponding callback will be called. */
541 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
547 /* add the timer in the sorted list */
548 /* NOTE: this code must be signal safe because
549 qemu_timer_expired() can be called from a signal. */
550 pt = &active_timers[ts->clock->type];
555 if (t->expire_time > expire_time)
559 ts->expire_time = expire_time;
564 int qemu_timer_pending(QEMUTimer *ts)
567 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
574 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
578 return (timer_head->expire_time <= current_time);
581 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
587 if (ts->expire_time > current_time)
589 /* remove timer from the list before calling the callback */
590 *ptimer_head = ts->next;
593 /* run the callback (the timer list can be modified) */
598 int64_t qemu_get_clock(QEMUClock *clock)
600 switch(clock->type) {
601 case QEMU_TIMER_REALTIME:
603 return GetTickCount();
605 /* XXX: portability among Linux hosts */
606 if (timer_freq == 100) {
607 return times(NULL) * 10;
609 return ((int64_t)times(NULL) * 1000) / timer_freq;
613 case QEMU_TIMER_VIRTUAL:
614 return cpu_get_ticks();
619 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
621 uint64_t expire_time;
623 if (qemu_timer_pending(ts)) {
624 expire_time = ts->expire_time;
628 qemu_put_be64(f, expire_time);
631 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
633 uint64_t expire_time;
635 expire_time = qemu_get_be64(f);
636 if (expire_time != -1) {
637 qemu_mod_timer(ts, expire_time);
643 static void timer_save(QEMUFile *f, void *opaque)
645 if (cpu_ticks_enabled) {
646 hw_error("cannot save state if virtual timers are running");
648 qemu_put_be64s(f, &cpu_ticks_offset);
649 qemu_put_be64s(f, &ticks_per_sec);
652 static int timer_load(QEMUFile *f, void *opaque, int version_id)
656 if (cpu_ticks_enabled) {
659 qemu_get_be64s(f, &cpu_ticks_offset);
660 qemu_get_be64s(f, &ticks_per_sec);
665 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
666 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
668 static void host_alarm_handler(int host_signum)
671 if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
672 qemu_get_clock(vm_clock)) ||
673 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
674 qemu_get_clock(rt_clock))) {
675 /* stop the cpu because a timer occured */
676 cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
680 static void init_timers(void)
682 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
683 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
688 timerID = timeSetEvent(10, // interval (ms)
690 host_alarm_handler, // function
691 (DWORD)&count, // user parameter
692 TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
694 perror("failed timer alarm");
698 pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
701 struct sigaction act;
702 struct itimerval itv;
704 /* get times() syscall frequency */
705 timer_freq = sysconf(_SC_CLK_TCK);
708 sigfillset(&act.sa_mask);
710 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
711 act.sa_flags |= SA_ONSTACK;
713 act.sa_handler = host_alarm_handler;
714 sigaction(SIGALRM, &act, NULL);
716 itv.it_interval.tv_sec = 0;
717 itv.it_interval.tv_usec = 1000;
718 itv.it_value.tv_sec = 0;
719 itv.it_value.tv_usec = 10 * 1000;
720 setitimer(ITIMER_REAL, &itv, NULL);
721 /* we probe the tick duration of the kernel to inform the user if
722 the emulated kernel requested a too high timer frequency */
723 getitimer(ITIMER_REAL, &itv);
724 pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec * PIT_FREQ) /
730 void quit_timers(void)
733 timeKillEvent(timerID);
737 /***********************************************************/
742 int serial_open_device(void)
749 int serial_open_device(void)
751 char slave_name[1024];
752 int master_fd, slave_fd;
754 if (serial_console == NULL && nographic) {
755 /* use console for serial port */
758 if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
759 fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
762 fprintf(stderr, "Serial port redirected to %s\n", slave_name);
769 /***********************************************************/
770 /* Linux network device redirectors */
772 void hex_dump(FILE *f, const uint8_t *buf, int size)
776 for(i=0;i<size;i+=16) {
780 fprintf(f, "%08x ", i);
783 fprintf(f, " %02x", buf[i+j]);
790 if (c < ' ' || c > '~')
798 void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
800 nd->send_packet(nd, buf, size);
803 void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
804 IOReadHandler *fd_read, void *opaque)
806 nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
809 /* dummy network adapter */
811 static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
815 static void dummy_add_read_packet(NetDriverState *nd,
816 IOCanRWHandler *fd_can_read,
817 IOReadHandler *fd_read, void *opaque)
821 static int net_dummy_init(NetDriverState *nd)
823 nd->send_packet = dummy_send_packet;
824 nd->add_read_packet = dummy_add_read_packet;
825 pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
829 #if defined(CONFIG_SLIRP)
831 /* slirp network adapter */
833 static void *slirp_fd_opaque;
834 static IOCanRWHandler *slirp_fd_can_read;
835 static IOReadHandler *slirp_fd_read;
836 static int slirp_inited;
838 int slirp_can_output(void)
840 return slirp_fd_can_read(slirp_fd_opaque);
843 void slirp_output(const uint8_t *pkt, int pkt_len)
847 hex_dump(stdout, pkt, pkt_len);
849 slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
852 static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
856 hex_dump(stdout, buf, size);
858 slirp_input(buf, size);
861 static void slirp_add_read_packet(NetDriverState *nd,
862 IOCanRWHandler *fd_can_read,
863 IOReadHandler *fd_read, void *opaque)
865 slirp_fd_opaque = opaque;
866 slirp_fd_can_read = fd_can_read;
867 slirp_fd_read = fd_read;
870 static int net_slirp_init(NetDriverState *nd)
876 nd->send_packet = slirp_send_packet;
877 nd->add_read_packet = slirp_add_read_packet;
878 pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
882 #endif /* CONFIG_SLIRP */
886 static int tun_open(char *ifname, int ifname_size)
891 fd = open("/dev/net/tun", O_RDWR);
893 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
896 memset(&ifr, 0, sizeof(ifr));
897 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
898 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
899 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
901 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
905 printf("Connected to host network interface: %s\n", ifr.ifr_name);
906 pstrcpy(ifname, ifname_size, ifr.ifr_name);
907 fcntl(fd, F_SETFL, O_NONBLOCK);
911 static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
913 write(nd->fd, buf, size);
916 static void tun_add_read_packet(NetDriverState *nd,
917 IOCanRWHandler *fd_can_read,
918 IOReadHandler *fd_read, void *opaque)
920 qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
923 static int net_tun_init(NetDriverState *nd)
929 nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
933 /* try to launch network init script */
938 *parg++ = network_script;
939 *parg++ = nd->ifname;
941 execv(network_script, args);
944 while (waitpid(pid, &status, 0) != pid);
945 if (!WIFEXITED(status) ||
946 WEXITSTATUS(status) != 0) {
947 fprintf(stderr, "%s: could not launch network script\n",
951 nd->send_packet = tun_send_packet;
952 nd->add_read_packet = tun_add_read_packet;
956 static int net_fd_init(NetDriverState *nd, int fd)
959 nd->send_packet = tun_send_packet;
960 nd->add_read_packet = tun_add_read_packet;
961 pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
967 /***********************************************************/
972 static void term_exit(void)
976 static void term_init(void)
982 /* init terminal so that we can grab keys */
983 static struct termios oldtty;
985 static void term_exit(void)
987 tcsetattr (0, TCSANOW, &oldtty);
990 static void term_init(void)
997 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
998 |INLCR|IGNCR|ICRNL|IXON);
999 tty.c_oflag |= OPOST;
1000 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1001 /* if graphical mode, we allow Ctrl-C handling */
1003 tty.c_lflag &= ~ISIG;
1004 tty.c_cflag &= ~(CSIZE|PARENB);
1007 tty.c_cc[VTIME] = 0;
1009 tcsetattr (0, TCSANOW, &tty);
1013 fcntl(0, F_SETFL, O_NONBLOCK);
1018 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
1022 static void dumb_resize(DisplayState *ds, int w, int h)
1026 static void dumb_refresh(DisplayState *ds)
1028 vga_update_display();
1031 void dumb_display_init(DisplayState *ds)
1036 ds->dpy_update = dumb_update;
1037 ds->dpy_resize = dumb_resize;
1038 ds->dpy_refresh = dumb_refresh;
1041 #if !defined(CONFIG_SOFTMMU)
1042 /***********************************************************/
1043 /* cpu signal handler */
1044 static void host_segv_handler(int host_signum, siginfo_t *info,
1047 if (cpu_signal_handler(host_signum, info, puc))
1054 /***********************************************************/
1057 #define MAX_IO_HANDLERS 64
1059 typedef struct IOHandlerRecord {
1061 IOCanRWHandler *fd_can_read;
1062 IOReadHandler *fd_read;
1064 /* temporary data */
1067 struct IOHandlerRecord *next;
1070 static IOHandlerRecord *first_io_handler;
1072 int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
1073 IOReadHandler *fd_read, void *opaque)
1075 IOHandlerRecord *ioh;
1077 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1081 ioh->fd_can_read = fd_can_read;
1082 ioh->fd_read = fd_read;
1083 ioh->opaque = opaque;
1084 ioh->next = first_io_handler;
1085 first_io_handler = ioh;
1089 void qemu_del_fd_read_handler(int fd)
1091 IOHandlerRecord **pioh, *ioh;
1093 pioh = &first_io_handler;
1098 if (ioh->fd == fd) {
1106 /***********************************************************/
1107 /* savevm/loadvm support */
1109 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
1111 fwrite(buf, 1, size, f);
1114 void qemu_put_byte(QEMUFile *f, int v)
1119 void qemu_put_be16(QEMUFile *f, unsigned int v)
1121 qemu_put_byte(f, v >> 8);
1122 qemu_put_byte(f, v);
1125 void qemu_put_be32(QEMUFile *f, unsigned int v)
1127 qemu_put_byte(f, v >> 24);
1128 qemu_put_byte(f, v >> 16);
1129 qemu_put_byte(f, v >> 8);
1130 qemu_put_byte(f, v);
1133 void qemu_put_be64(QEMUFile *f, uint64_t v)
1135 qemu_put_be32(f, v >> 32);
1136 qemu_put_be32(f, v);
1139 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
1141 return fread(buf, 1, size, f);
1144 int qemu_get_byte(QEMUFile *f)
1154 unsigned int qemu_get_be16(QEMUFile *f)
1157 v = qemu_get_byte(f) << 8;
1158 v |= qemu_get_byte(f);
1162 unsigned int qemu_get_be32(QEMUFile *f)
1165 v = qemu_get_byte(f) << 24;
1166 v |= qemu_get_byte(f) << 16;
1167 v |= qemu_get_byte(f) << 8;
1168 v |= qemu_get_byte(f);
1172 uint64_t qemu_get_be64(QEMUFile *f)
1175 v = (uint64_t)qemu_get_be32(f) << 32;
1176 v |= qemu_get_be32(f);
1180 int64_t qemu_ftell(QEMUFile *f)
1185 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
1187 if (fseek(f, pos, whence) < 0)
1192 typedef struct SaveStateEntry {
1196 SaveStateHandler *save_state;
1197 LoadStateHandler *load_state;
1199 struct SaveStateEntry *next;
1202 static SaveStateEntry *first_se;
1204 int register_savevm(const char *idstr,
1207 SaveStateHandler *save_state,
1208 LoadStateHandler *load_state,
1211 SaveStateEntry *se, **pse;
1213 se = qemu_malloc(sizeof(SaveStateEntry));
1216 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
1217 se->instance_id = instance_id;
1218 se->version_id = version_id;
1219 se->save_state = save_state;
1220 se->load_state = load_state;
1221 se->opaque = opaque;
1224 /* add at the end of list */
1226 while (*pse != NULL)
1227 pse = &(*pse)->next;
1232 #define QEMU_VM_FILE_MAGIC 0x5145564d
1233 #define QEMU_VM_FILE_VERSION 0x00000001
1235 int qemu_savevm(const char *filename)
1239 int len, len_pos, cur_pos, saved_vm_running, ret;
1241 saved_vm_running = vm_running;
1244 f = fopen(filename, "wb");
1250 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
1251 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
1253 for(se = first_se; se != NULL; se = se->next) {
1255 len = strlen(se->idstr);
1256 qemu_put_byte(f, len);
1257 qemu_put_buffer(f, se->idstr, len);
1259 qemu_put_be32(f, se->instance_id);
1260 qemu_put_be32(f, se->version_id);
1262 /* record size: filled later */
1264 qemu_put_be32(f, 0);
1266 se->save_state(f, se->opaque);
1268 /* fill record size */
1270 len = ftell(f) - len_pos - 4;
1271 fseek(f, len_pos, SEEK_SET);
1272 qemu_put_be32(f, len);
1273 fseek(f, cur_pos, SEEK_SET);
1279 if (saved_vm_running)
1284 static SaveStateEntry *find_se(const char *idstr, int instance_id)
1288 for(se = first_se; se != NULL; se = se->next) {
1289 if (!strcmp(se->idstr, idstr) &&
1290 instance_id == se->instance_id)
1296 int qemu_loadvm(const char *filename)
1300 int len, cur_pos, ret, instance_id, record_len, version_id;
1301 int saved_vm_running;
1305 saved_vm_running = vm_running;
1308 f = fopen(filename, "rb");
1314 v = qemu_get_be32(f);
1315 if (v != QEMU_VM_FILE_MAGIC)
1317 v = qemu_get_be32(f);
1318 if (v != QEMU_VM_FILE_VERSION) {
1325 #if defined (DO_TB_FLUSH)
1328 len = qemu_get_byte(f);
1331 qemu_get_buffer(f, idstr, len);
1333 instance_id = qemu_get_be32(f);
1334 version_id = qemu_get_be32(f);
1335 record_len = qemu_get_be32(f);
1337 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1338 idstr, instance_id, version_id, record_len);
1341 se = find_se(idstr, instance_id);
1343 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1344 instance_id, idstr);
1346 ret = se->load_state(f, se->opaque, version_id);
1348 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1349 instance_id, idstr);
1352 /* always seek to exact end of record */
1353 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
1358 if (saved_vm_running)
1363 /***********************************************************/
1364 /* cpu save/restore */
1366 #if defined(TARGET_I386)
1368 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
1370 qemu_put_be32(f, (uint32_t)dt->base);
1371 qemu_put_be32(f, dt->limit);
1372 qemu_put_be32(f, dt->flags);
1375 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
1377 dt->base = (uint8_t *)qemu_get_be32(f);
1378 dt->limit = qemu_get_be32(f);
1379 dt->flags = qemu_get_be32(f);
1382 void cpu_save(QEMUFile *f, void *opaque)
1384 CPUState *env = opaque;
1385 uint16_t fptag, fpus, fpuc;
1389 for(i = 0; i < 8; i++)
1390 qemu_put_be32s(f, &env->regs[i]);
1391 qemu_put_be32s(f, &env->eip);
1392 qemu_put_be32s(f, &env->eflags);
1393 qemu_put_be32s(f, &env->eflags);
1394 hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
1395 qemu_put_be32s(f, &hflags);
1399 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1401 for (i=7; i>=0; i--) {
1403 if (env->fptags[i]) {
1408 qemu_put_be16s(f, &fpuc);
1409 qemu_put_be16s(f, &fpus);
1410 qemu_put_be16s(f, &fptag);
1412 for(i = 0; i < 8; i++) {
1415 cpu_get_fp80(&mant, &exp, env->fpregs[i]);
1416 qemu_put_be64(f, mant);
1417 qemu_put_be16(f, exp);
1420 for(i = 0; i < 6; i++)
1421 cpu_put_seg(f, &env->segs[i]);
1422 cpu_put_seg(f, &env->ldt);
1423 cpu_put_seg(f, &env->tr);
1424 cpu_put_seg(f, &env->gdt);
1425 cpu_put_seg(f, &env->idt);
1427 qemu_put_be32s(f, &env->sysenter_cs);
1428 qemu_put_be32s(f, &env->sysenter_esp);
1429 qemu_put_be32s(f, &env->sysenter_eip);
1431 qemu_put_be32s(f, &env->cr[0]);
1432 qemu_put_be32s(f, &env->cr[2]);
1433 qemu_put_be32s(f, &env->cr[3]);
1434 qemu_put_be32s(f, &env->cr[4]);
1436 for(i = 0; i < 8; i++)
1437 qemu_put_be32s(f, &env->dr[i]);
1440 qemu_put_be32s(f, &env->a20_mask);
1443 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1445 CPUState *env = opaque;
1448 uint16_t fpus, fpuc, fptag;
1450 if (version_id != 1)
1452 for(i = 0; i < 8; i++)
1453 qemu_get_be32s(f, &env->regs[i]);
1454 qemu_get_be32s(f, &env->eip);
1455 qemu_get_be32s(f, &env->eflags);
1456 qemu_get_be32s(f, &env->eflags);
1457 qemu_get_be32s(f, &hflags);
1459 qemu_get_be16s(f, &fpuc);
1460 qemu_get_be16s(f, &fpus);
1461 qemu_get_be16s(f, &fptag);
1463 for(i = 0; i < 8; i++) {
1466 mant = qemu_get_be64(f);
1467 exp = qemu_get_be16(f);
1468 env->fpregs[i] = cpu_set_fp80(mant, exp);
1472 env->fpstt = (fpus >> 11) & 7;
1473 env->fpus = fpus & ~0x3800;
1474 for(i = 0; i < 8; i++) {
1475 env->fptags[i] = ((fptag & 3) == 3);
1479 for(i = 0; i < 6; i++)
1480 cpu_get_seg(f, &env->segs[i]);
1481 cpu_get_seg(f, &env->ldt);
1482 cpu_get_seg(f, &env->tr);
1483 cpu_get_seg(f, &env->gdt);
1484 cpu_get_seg(f, &env->idt);
1486 qemu_get_be32s(f, &env->sysenter_cs);
1487 qemu_get_be32s(f, &env->sysenter_esp);
1488 qemu_get_be32s(f, &env->sysenter_eip);
1490 qemu_get_be32s(f, &env->cr[0]);
1491 qemu_get_be32s(f, &env->cr[2]);
1492 qemu_get_be32s(f, &env->cr[3]);
1493 qemu_get_be32s(f, &env->cr[4]);
1495 for(i = 0; i < 8; i++)
1496 qemu_get_be32s(f, &env->dr[i]);
1499 qemu_get_be32s(f, &env->a20_mask);
1501 /* XXX: compute hflags from scratch, except for CPL and IIF */
1502 env->hflags = hflags;
1507 #elif defined(TARGET_PPC)
1508 void cpu_save(QEMUFile *f, void *opaque)
1512 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1518 #warning No CPU save/restore functions
1522 /***********************************************************/
1523 /* ram save/restore */
1525 /* we just avoid storing empty pages */
1526 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
1531 for(i = 1; i < len; i++) {
1535 qemu_put_byte(f, 1);
1536 qemu_put_byte(f, v);
1539 qemu_put_byte(f, 0);
1540 qemu_put_buffer(f, buf, len);
1543 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
1547 v = qemu_get_byte(f);
1550 if (qemu_get_buffer(f, buf, len) != len)
1554 v = qemu_get_byte(f);
1555 memset(buf, v, len);
1563 static void ram_save(QEMUFile *f, void *opaque)
1566 qemu_put_be32(f, phys_ram_size);
1567 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1568 ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1572 static int ram_load(QEMUFile *f, void *opaque, int version_id)
1576 if (version_id != 1)
1578 if (qemu_get_be32(f) != phys_ram_size)
1580 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1581 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1588 /***********************************************************/
1589 /* main execution loop */
1591 void gui_update(void *opaque)
1593 display_state.dpy_refresh(&display_state);
1594 qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
1597 /* XXX: support several handlers */
1598 VMStopHandler *vm_stop_cb;
1599 VMStopHandler *vm_stop_opaque;
1601 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
1604 vm_stop_opaque = opaque;
1608 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
1621 void vm_stop(int reason)
1624 cpu_disable_ticks();
1628 vm_stop_cb(vm_stop_opaque, reason);
1637 struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
1638 IOHandlerRecord *ioh, *ioh_next;
1643 CPUState *env = global_env;
1647 ret = cpu_exec(env);
1648 if (reset_requested) {
1649 ret = EXCP_INTERRUPT;
1652 if (ret == EXCP_DEBUG) {
1653 vm_stop(EXCP_DEBUG);
1655 /* if hlt instruction, we wait until the next IRQ */
1656 /* XXX: use timeout computed from timers */
1657 if (ret == EXCP_HLT)
1670 /* poll any events */
1671 /* XXX: separate device handlers from system ones */
1673 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
1674 if (!ioh->fd_can_read) {
1677 pf->events = POLLIN;
1681 max_size = ioh->fd_can_read(ioh->opaque);
1683 if (max_size > sizeof(buf))
1684 max_size = sizeof(buf);
1686 pf->events = POLLIN;
1693 ioh->max_size = max_size;
1696 ret = poll(ufds, pf - ufds, timeout);
1698 /* XXX: better handling of removal */
1699 for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
1700 ioh_next = ioh->next;
1703 if (pf->revents & POLLIN) {
1704 if (ioh->max_size == 0) {
1705 /* just a read event */
1706 ioh->fd_read(ioh->opaque, NULL, 0);
1708 n = read(ioh->fd, buf, ioh->max_size);
1710 ioh->fd_read(ioh->opaque, buf, n);
1711 } else if (errno != -EAGAIN) {
1712 ioh->fd_read(ioh->opaque, NULL, -errno);
1720 #if defined(CONFIG_SLIRP)
1721 /* XXX: merge with poll() */
1723 fd_set rfds, wfds, xfds;
1731 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1734 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1736 slirp_select_poll(&rfds, &wfds, &xfds);
1744 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
1745 qemu_get_clock(vm_clock));
1747 /* XXX: add explicit timer */
1750 /* run dma transfers, if any */
1754 /* real time timers */
1755 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
1756 qemu_get_clock(rt_clock));
1758 cpu_disable_ticks();
1764 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003 Fabrice Bellard\n"
1765 "usage: %s [options] [disk_image]\n"
1767 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
1769 "Standard options:\n"
1770 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
1771 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
1772 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
1773 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
1774 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
1775 "-snapshot write to temporary files instead of disk image files\n"
1776 "-m megs set virtual RAM size to megs MB\n"
1777 "-nographic disable graphical output and redirect serial I/Os to console\n"
1779 "Network options:\n"
1780 "-nics n simulate 'n' network cards [default=1]\n"
1781 "-macaddr addr set the mac address of the first interface\n"
1782 "-n script set tap/tun network init script [default=%s]\n"
1783 "-tun-fd fd use this fd as already opened tap/tun interface\n"
1785 "-user-net use user mode network stack [default if no tap/tun script]\n"
1787 "-dummy-net use dummy network stack\n"
1789 "Linux boot specific:\n"
1790 "-kernel bzImage use 'bzImage' as kernel image\n"
1791 "-append cmdline use 'cmdline' as kernel command line\n"
1792 "-initrd file use 'file' as initial ram disk\n"
1794 "Debug/Expert options:\n"
1795 "-s wait gdb connection to port %d\n"
1796 "-p port change gdb connection port\n"
1797 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
1798 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
1799 "-L path set the directory for the BIOS and VGA BIOS\n"
1800 #ifdef USE_CODE_COPY
1801 "-no-code-copy disable code copy acceleration\n"
1805 "During emulation, use C-a h to get terminal commands:\n",
1806 #ifdef CONFIG_SOFTMMU
1811 DEFAULT_NETWORK_SCRIPT,
1812 DEFAULT_GDBSTUB_PORT,
1815 #ifndef CONFIG_SOFTMMU
1817 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
1818 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
1824 struct option long_options[] = {
1825 { "initrd", 1, NULL, 0, },
1826 { "hda", 1, NULL, 0, },
1827 { "hdb", 1, NULL, 0, },
1828 { "snapshot", 0, NULL, 0, },
1829 { "hdachs", 1, NULL, 0, },
1830 { "nographic", 0, NULL, 0, },
1831 { "kernel", 1, NULL, 0, },
1832 { "append", 1, NULL, 0, },
1833 { "tun-fd", 1, NULL, 0, },
1834 { "hdc", 1, NULL, 0, },
1835 { "hdd", 1, NULL, 0, },
1836 { "cdrom", 1, NULL, 0, },
1837 { "boot", 1, NULL, 0, },
1838 { "fda", 1, NULL, 0, },
1839 { "fdb", 1, NULL, 0, },
1840 { "no-code-copy", 0, NULL, 0 },
1841 { "nics", 1, NULL, 0 },
1842 { "macaddr", 1, NULL, 0 },
1843 { "user-net", 0, NULL, 0 },
1844 { "dummy-net", 0, NULL, 0 },
1845 { NULL, 0, NULL, 0 },
1848 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1850 /* this stack is only used during signal handling */
1851 #define SIGNAL_STACK_SIZE 32768
1853 static uint8_t *signal_stack;
1857 #define NET_IF_TUN 0
1858 #define NET_IF_USER 1
1859 #define NET_IF_DUMMY 2
1861 int main(int argc, char **argv)
1863 #ifdef CONFIG_GDBSTUB
1864 int use_gdbstub, gdbstub_port;
1866 int c, i, long_index, has_cdrom;
1867 int snapshot, linux_boot;
1869 const char *initrd_filename;
1870 const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
1871 const char *kernel_filename, *kernel_cmdline;
1872 DisplayState *ds = &display_state;
1873 int cyls, heads, secs;
1874 int start_emulation = 1;
1876 int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
1878 #if !defined(CONFIG_SOFTMMU)
1879 /* we never want that malloc() uses mmap() */
1880 mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
1882 initrd_filename = NULL;
1883 for(i = 0; i < MAX_FD; i++)
1884 fd_filename[i] = NULL;
1885 for(i = 0; i < MAX_DISKS; i++)
1886 hd_filename[i] = NULL;
1887 ram_size = 32 * 1024 * 1024;
1888 vga_ram_size = VGA_RAM_SIZE;
1889 pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
1890 #ifdef CONFIG_GDBSTUB
1892 gdbstub_port = DEFAULT_GDBSTUB_PORT;
1896 kernel_filename = NULL;
1897 kernel_cmdline = "";
1899 cyls = heads = secs = 0;
1904 /* default mac address of the first network interface */
1914 c = getopt_long_only(argc, argv, "hm:d:n:sp:L:S", long_options, &long_index);
1919 switch(long_index) {
1921 initrd_filename = optarg;
1924 hd_filename[0] = optarg;
1927 hd_filename[1] = optarg;
1936 cyls = strtol(p, (char **)&p, 0);
1940 heads = strtol(p, (char **)&p, 0);
1944 secs = strtol(p, (char **)&p, 0);
1955 kernel_filename = optarg;
1958 kernel_cmdline = optarg;
1964 if (nb_tun_fds < MAX_NICS) {
1965 fd = strtol(optarg, (char **)&p, 0);
1967 fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
1970 tun_fds[nb_tun_fds++] = fd;
1975 hd_filename[2] = optarg;
1979 hd_filename[3] = optarg;
1982 hd_filename[2] = optarg;
1986 boot_device = optarg[0];
1987 if (boot_device != 'a' && boot_device != 'b' &&
1988 boot_device != 'c' && boot_device != 'd') {
1989 fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
1994 fd_filename[0] = optarg;
1997 fd_filename[1] = optarg;
2000 code_copy_enabled = 0;
2003 nb_nics = atoi(optarg);
2004 if (nb_nics < 1 || nb_nics > MAX_NICS) {
2005 fprintf(stderr, "qemu: invalid number of network interfaces\n");
2014 for(i = 0; i < 6; i++) {
2015 macaddr[i] = strtol(p, (char **)&p, 16);
2022 fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
2031 net_if_type = NET_IF_USER;
2034 net_if_type = NET_IF_DUMMY;
2042 ram_size = atoi(optarg) * 1024 * 1024;
2045 if (ram_size > PHYS_RAM_MAX_SIZE) {
2046 fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
2047 PHYS_RAM_MAX_SIZE / (1024 * 1024));
2056 mask = cpu_str_to_log_mask(optarg);
2058 printf("Log items (comma separated):\n");
2059 for(item = cpu_log_items; item->mask != 0; item++) {
2060 printf("%-10s %s\n", item->name, item->help);
2068 pstrcpy(network_script, sizeof(network_script), optarg);
2070 #ifdef CONFIG_GDBSTUB
2075 gdbstub_port = atoi(optarg);
2082 start_emulation = 0;
2087 if (optind < argc) {
2088 hd_filename[0] = argv[optind++];
2091 linux_boot = (kernel_filename != NULL);
2093 if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
2094 fd_filename[0] == '\0')
2097 /* boot to cd by default if no hard disk */
2098 if (hd_filename[0] == '\0' && boot_device == 'c') {
2099 if (fd_filename[0] != '\0')
2105 #if !defined(CONFIG_SOFTMMU)
2106 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2108 static uint8_t stdout_buf[4096];
2109 setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
2112 setvbuf(stdout, NULL, _IOLBF, 0);
2115 /* init host network redirectors */
2116 if (net_if_type == -1) {
2117 net_if_type = NET_IF_TUN;
2118 #if defined(CONFIG_SLIRP)
2119 if (access(network_script, R_OK) < 0) {
2120 net_if_type = NET_IF_USER;
2125 for(i = 0; i < nb_nics; i++) {
2126 NetDriverState *nd = &nd_table[i];
2128 /* init virtual mac address */
2129 nd->macaddr[0] = macaddr[0];
2130 nd->macaddr[1] = macaddr[1];
2131 nd->macaddr[2] = macaddr[2];
2132 nd->macaddr[3] = macaddr[3];
2133 nd->macaddr[4] = macaddr[4];
2134 nd->macaddr[5] = macaddr[5] + i;
2135 switch(net_if_type) {
2136 #if defined(CONFIG_SLIRP)
2141 #if !defined(_WIN32)
2143 if (i < nb_tun_fds) {
2144 net_fd_init(nd, tun_fds[i]);
2157 /* init the memory */
2158 phys_ram_size = ram_size + vga_ram_size;
2160 #ifdef CONFIG_SOFTMMU
2161 phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
2162 if (!phys_ram_base) {
2163 fprintf(stderr, "Could not allocate physical memory\n");
2167 /* as we must map the same page at several addresses, we must use
2172 tmpdir = getenv("QEMU_TMPDIR");
2175 snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
2176 if (mkstemp(phys_ram_file) < 0) {
2177 fprintf(stderr, "Could not create temporary memory file '%s'\n",
2181 phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
2182 if (phys_ram_fd < 0) {
2183 fprintf(stderr, "Could not open temporary memory file '%s'\n",
2187 ftruncate(phys_ram_fd, phys_ram_size);
2188 unlink(phys_ram_file);
2189 phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
2191 PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
2193 if (phys_ram_base == MAP_FAILED) {
2194 fprintf(stderr, "Could not map physical memory\n");
2200 /* we always create the cdrom drive, even if no disk is there */
2202 bs_table[2] = bdrv_new("cdrom");
2203 bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
2206 /* open the virtual block devices */
2207 for(i = 0; i < MAX_DISKS; i++) {
2208 if (hd_filename[i]) {
2211 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
2212 bs_table[i] = bdrv_new(buf);
2214 if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
2215 fprintf(stderr, "qemu: could not open hard disk image '%s\n",
2219 if (i == 0 && cyls != 0)
2220 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
2224 /* we always create at least one floppy disk */
2225 fd_table[0] = bdrv_new("fda");
2226 bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
2228 for(i = 0; i < MAX_FD; i++) {
2229 if (fd_filename[i]) {
2232 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
2233 fd_table[i] = bdrv_new(buf);
2234 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
2236 if (fd_filename[i] != '\0') {
2237 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
2238 fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
2246 /* init CPU state */
2249 cpu_single_env = env;
2251 register_savevm("timer", 0, 1, timer_save, timer_load, env);
2252 register_savevm("cpu", 0, 1, cpu_save, cpu_load, env);
2253 register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
2256 cpu_calibrate_ticks();
2260 dumb_display_init(ds);
2263 sdl_display_init(ds);
2265 dumb_display_init(ds);
2269 /* setup cpu signal handlers for MMU / self modifying code handling */
2270 #if !defined(CONFIG_SOFTMMU)
2272 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2275 signal_stack = memalign(16, SIGNAL_STACK_SIZE);
2276 stk.ss_sp = signal_stack;
2277 stk.ss_size = SIGNAL_STACK_SIZE;
2280 if (sigaltstack(&stk, NULL) < 0) {
2281 perror("sigaltstack");
2287 struct sigaction act;
2289 sigfillset(&act.sa_mask);
2290 act.sa_flags = SA_SIGINFO;
2291 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2292 act.sa_flags |= SA_ONSTACK;
2294 act.sa_sigaction = host_segv_handler;
2295 sigaction(SIGSEGV, &act, NULL);
2296 sigaction(SIGBUS, &act, NULL);
2297 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2298 sigaction(SIGFPE, &act, NULL);
2305 struct sigaction act;
2306 sigfillset(&act.sa_mask);
2308 act.sa_handler = SIG_IGN;
2309 sigaction(SIGPIPE, &act, NULL);
2314 #if defined(TARGET_I386)
2315 pc_init(ram_size, vga_ram_size, boot_device,
2316 ds, fd_filename, snapshot,
2317 kernel_filename, kernel_cmdline, initrd_filename);
2318 #elif defined(TARGET_PPC)
2319 ppc_init(ram_size, vga_ram_size, boot_device,
2320 ds, fd_filename, snapshot,
2321 kernel_filename, kernel_cmdline, initrd_filename);
2324 /* launched after the device init so that it can display or not a
2328 gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
2329 qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
2331 #ifdef CONFIG_GDBSTUB
2333 if (gdbserver_start(gdbstub_port) < 0) {
2334 fprintf(stderr, "Could not open gdbserver socket on port %d\n",
2338 printf("Waiting gdb connection on port %d\n", gdbstub_port);
2342 if (start_emulation)