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 GUI_REFRESH_INTERVAL 30
99 /* XXX: use a two level table to limit memory usage */
100 #define MAX_IOPORTS 65536
102 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
103 char phys_ram_file[1024];
104 CPUState *global_env;
105 CPUState *cpu_single_env;
106 void *ioport_opaque[MAX_IOPORTS];
107 IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
108 IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
109 BlockDriverState *bs_table[MAX_DISKS], *fd_table[MAX_FD];
111 static DisplayState display_state;
113 int64_t ticks_per_sec;
114 int boot_device = 'c';
116 static char network_script[1024];
117 int pit_min_timer_count = 0;
119 NetDriverState nd_table[MAX_NICS];
120 SerialState *serial_console;
121 QEMUTimer *gui_timer;
123 int audio_enabled = 0;
126 /***********************************************************/
127 /* x86 ISA bus support */
129 target_phys_addr_t isa_mem_base = 0;
131 uint32_t default_ioport_readb(void *opaque, uint32_t address)
133 #ifdef DEBUG_UNUSED_IOPORT
134 fprintf(stderr, "inb: port=0x%04x\n", address);
139 void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
141 #ifdef DEBUG_UNUSED_IOPORT
142 fprintf(stderr, "outb: port=0x%04x data=0x%02x\n", address, data);
146 /* default is to make two byte accesses */
147 uint32_t default_ioport_readw(void *opaque, uint32_t address)
150 data = ioport_read_table[0][address](ioport_opaque[address], address);
151 address = (address + 1) & (MAX_IOPORTS - 1);
152 data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
156 void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
158 ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
159 address = (address + 1) & (MAX_IOPORTS - 1);
160 ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
163 uint32_t default_ioport_readl(void *opaque, uint32_t address)
165 #ifdef DEBUG_UNUSED_IOPORT
166 fprintf(stderr, "inl: port=0x%04x\n", address);
171 void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
173 #ifdef DEBUG_UNUSED_IOPORT
174 fprintf(stderr, "outl: port=0x%04x data=0x%02x\n", address, data);
178 void init_ioports(void)
182 for(i = 0; i < MAX_IOPORTS; i++) {
183 ioport_read_table[0][i] = default_ioport_readb;
184 ioport_write_table[0][i] = default_ioport_writeb;
185 ioport_read_table[1][i] = default_ioport_readw;
186 ioport_write_table[1][i] = default_ioport_writew;
187 ioport_read_table[2][i] = default_ioport_readl;
188 ioport_write_table[2][i] = default_ioport_writel;
192 /* size is the word size in byte */
193 int register_ioport_read(int start, int length, int size,
194 IOPortReadFunc *func, void *opaque)
200 } else if (size == 2) {
202 } else if (size == 4) {
205 hw_error("register_ioport_read: invalid size");
208 for(i = start; i < start + length; i += size) {
209 ioport_read_table[bsize][i] = func;
210 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
211 hw_error("register_ioport_read: invalid opaque");
212 ioport_opaque[i] = opaque;
217 /* size is the word size in byte */
218 int register_ioport_write(int start, int length, int size,
219 IOPortWriteFunc *func, void *opaque)
225 } else if (size == 2) {
227 } else if (size == 4) {
230 hw_error("register_ioport_write: invalid size");
233 for(i = start; i < start + length; i += size) {
234 ioport_write_table[bsize][i] = func;
235 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
236 hw_error("register_ioport_read: invalid opaque");
237 ioport_opaque[i] = opaque;
242 void isa_unassign_ioport(int start, int length)
246 for(i = start; i < start + length; i++) {
247 ioport_read_table[0][i] = default_ioport_readb;
248 ioport_read_table[1][i] = default_ioport_readw;
249 ioport_read_table[2][i] = default_ioport_readl;
251 ioport_write_table[0][i] = default_ioport_writeb;
252 ioport_write_table[1][i] = default_ioport_writew;
253 ioport_write_table[2][i] = default_ioport_writel;
257 void pstrcpy(char *buf, int buf_size, const char *str)
267 if (c == 0 || q >= buf + buf_size - 1)
274 /* strcat and truncate. */
275 char *pstrcat(char *buf, int buf_size, const char *s)
280 pstrcpy(buf + len, buf_size - len, s);
284 /* return the size or -1 if error */
285 int load_image(const char *filename, uint8_t *addr)
288 fd = open(filename, O_RDONLY | O_BINARY);
291 size = lseek(fd, 0, SEEK_END);
292 lseek(fd, 0, SEEK_SET);
293 if (read(fd, addr, size) != size) {
301 void cpu_outb(CPUState *env, int addr, int val)
304 if (loglevel & CPU_LOG_IOPORT)
305 fprintf(logfile, "outb: %04x %02x\n", addr, val);
307 ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
310 void cpu_outw(CPUState *env, int addr, int val)
313 if (loglevel & CPU_LOG_IOPORT)
314 fprintf(logfile, "outw: %04x %04x\n", addr, val);
316 ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
319 void cpu_outl(CPUState *env, int addr, int val)
322 if (loglevel & CPU_LOG_IOPORT)
323 fprintf(logfile, "outl: %04x %08x\n", addr, val);
325 ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
328 int cpu_inb(CPUState *env, int addr)
331 val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
333 if (loglevel & CPU_LOG_IOPORT)
334 fprintf(logfile, "inb : %04x %02x\n", addr, val);
339 int cpu_inw(CPUState *env, int addr)
342 val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
344 if (loglevel & CPU_LOG_IOPORT)
345 fprintf(logfile, "inw : %04x %04x\n", addr, val);
350 int cpu_inl(CPUState *env, int addr)
353 val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
355 if (loglevel & CPU_LOG_IOPORT)
356 fprintf(logfile, "inl : %04x %08x\n", addr, val);
361 /***********************************************************/
362 void hw_error(const char *fmt, ...)
367 fprintf(stderr, "qemu: hardware error: ");
368 vfprintf(stderr, fmt, ap);
369 fprintf(stderr, "\n");
371 cpu_x86_dump_state(global_env, stderr, X86_DUMP_FPU | X86_DUMP_CCOP);
373 cpu_dump_state(global_env, stderr, 0);
379 /***********************************************************/
382 #if defined(__powerpc__)
384 static inline uint32_t get_tbl(void)
387 asm volatile("mftb %0" : "=r" (tbl));
391 static inline uint32_t get_tbu(void)
394 asm volatile("mftbu %0" : "=r" (tbl));
398 int64_t cpu_get_real_ticks(void)
401 /* NOTE: we test if wrapping has occurred */
407 return ((int64_t)h << 32) | l;
410 #elif defined(__i386__)
412 int64_t cpu_get_real_ticks(void)
415 asm volatile ("rdtsc" : "=A" (val));
419 #elif defined(__x86_64__)
421 int64_t cpu_get_real_ticks(void)
425 asm volatile("rdtsc" : "=a" (low), "=d" (high));
433 #error unsupported CPU
436 static int64_t cpu_ticks_offset;
437 static int cpu_ticks_enabled;
439 static inline int64_t cpu_get_ticks(void)
441 if (!cpu_ticks_enabled) {
442 return cpu_ticks_offset;
444 return cpu_get_real_ticks() + cpu_ticks_offset;
448 /* enable cpu_get_ticks() */
449 void cpu_enable_ticks(void)
451 if (!cpu_ticks_enabled) {
452 cpu_ticks_offset -= cpu_get_real_ticks();
453 cpu_ticks_enabled = 1;
457 /* disable cpu_get_ticks() : the clock is stopped. You must not call
458 cpu_get_ticks() after that. */
459 void cpu_disable_ticks(void)
461 if (cpu_ticks_enabled) {
462 cpu_ticks_offset = cpu_get_ticks();
463 cpu_ticks_enabled = 0;
467 static int64_t get_clock(void)
472 return ((int64_t)tb.time * 1000 + (int64_t)tb.millitm) * 1000;
475 gettimeofday(&tv, NULL);
476 return tv.tv_sec * 1000000LL + tv.tv_usec;
480 void cpu_calibrate_ticks(void)
485 ticks = cpu_get_real_ticks();
491 usec = get_clock() - usec;
492 ticks = cpu_get_real_ticks() - ticks;
493 ticks_per_sec = (ticks * 1000000LL + (usec >> 1)) / usec;
496 /* compute with 96 bit intermediate result: (a*b)/c */
497 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
502 #ifdef WORDS_BIGENDIAN
512 rl = (uint64_t)u.l.low * (uint64_t)b;
513 rh = (uint64_t)u.l.high * (uint64_t)b;
516 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
520 #define QEMU_TIMER_REALTIME 0
521 #define QEMU_TIMER_VIRTUAL 1
525 /* XXX: add frequency */
533 struct QEMUTimer *next;
539 static QEMUTimer *active_timers[2];
541 static MMRESULT timerID;
543 /* frequency of the times() clock tick */
544 static int timer_freq;
547 QEMUClock *qemu_new_clock(int type)
550 clock = qemu_mallocz(sizeof(QEMUClock));
557 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
561 ts = qemu_mallocz(sizeof(QEMUTimer));
568 void qemu_free_timer(QEMUTimer *ts)
573 /* stop a timer, but do not dealloc it */
574 void qemu_del_timer(QEMUTimer *ts)
578 /* NOTE: this code must be signal safe because
579 qemu_timer_expired() can be called from a signal. */
580 pt = &active_timers[ts->clock->type];
593 /* modify the current timer so that it will be fired when current_time
594 >= expire_time. The corresponding callback will be called. */
595 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
601 /* add the timer in the sorted list */
602 /* NOTE: this code must be signal safe because
603 qemu_timer_expired() can be called from a signal. */
604 pt = &active_timers[ts->clock->type];
609 if (t->expire_time > expire_time)
613 ts->expire_time = expire_time;
618 int qemu_timer_pending(QEMUTimer *ts)
621 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
628 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
632 return (timer_head->expire_time <= current_time);
635 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
641 if (ts->expire_time > current_time)
643 /* remove timer from the list before calling the callback */
644 *ptimer_head = ts->next;
647 /* run the callback (the timer list can be modified) */
652 int64_t qemu_get_clock(QEMUClock *clock)
654 switch(clock->type) {
655 case QEMU_TIMER_REALTIME:
657 return GetTickCount();
662 /* Note that using gettimeofday() is not a good solution
663 for timers because its value change when the date is
665 if (timer_freq == 100) {
666 return times(&tp) * 10;
668 return ((int64_t)times(&tp) * 1000) / timer_freq;
673 case QEMU_TIMER_VIRTUAL:
674 return cpu_get_ticks();
679 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
681 uint64_t expire_time;
683 if (qemu_timer_pending(ts)) {
684 expire_time = ts->expire_time;
688 qemu_put_be64(f, expire_time);
691 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
693 uint64_t expire_time;
695 expire_time = qemu_get_be64(f);
696 if (expire_time != -1) {
697 qemu_mod_timer(ts, expire_time);
703 static void timer_save(QEMUFile *f, void *opaque)
705 if (cpu_ticks_enabled) {
706 hw_error("cannot save state if virtual timers are running");
708 qemu_put_be64s(f, &cpu_ticks_offset);
709 qemu_put_be64s(f, &ticks_per_sec);
712 static int timer_load(QEMUFile *f, void *opaque, int version_id)
716 if (cpu_ticks_enabled) {
719 qemu_get_be64s(f, &cpu_ticks_offset);
720 qemu_get_be64s(f, &ticks_per_sec);
725 void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
726 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
728 static void host_alarm_handler(int host_signum)
731 if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
732 qemu_get_clock(vm_clock)) ||
733 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
734 qemu_get_clock(rt_clock))) {
735 /* stop the cpu because a timer occured */
736 cpu_interrupt(global_env, CPU_INTERRUPT_EXIT);
742 #define RTC_FREQ 1024
746 static int start_rtc_timer(void)
748 rtc_fd = open("/dev/rtc", O_RDONLY);
751 if (ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
752 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
753 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
754 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
757 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
762 pit_min_timer_count = PIT_FREQ / RTC_FREQ;
768 static void init_timers(void)
770 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
771 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
776 timerID = timeSetEvent(10, // interval (ms)
778 host_alarm_handler, // function
779 (DWORD)&count, // user parameter
780 TIME_PERIODIC | TIME_CALLBACK_FUNCTION);
782 perror("failed timer alarm");
786 pit_min_timer_count = ((uint64_t)10000 * PIT_FREQ) / 1000000;
789 struct sigaction act;
790 struct itimerval itv;
792 /* get times() syscall frequency */
793 timer_freq = sysconf(_SC_CLK_TCK);
796 sigfillset(&act.sa_mask);
798 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
799 act.sa_flags |= SA_ONSTACK;
801 act.sa_handler = host_alarm_handler;
802 sigaction(SIGALRM, &act, NULL);
804 itv.it_interval.tv_sec = 0;
805 itv.it_interval.tv_usec = 1000;
806 itv.it_value.tv_sec = 0;
807 itv.it_value.tv_usec = 10 * 1000;
808 setitimer(ITIMER_REAL, &itv, NULL);
809 /* we probe the tick duration of the kernel to inform the user if
810 the emulated kernel requested a too high timer frequency */
811 getitimer(ITIMER_REAL, &itv);
813 if (itv.it_interval.tv_usec > 1000) {
814 /* try to use /dev/rtc to have a faster timer */
815 if (start_rtc_timer() < 0)
818 itv.it_interval.tv_sec = 0;
819 itv.it_interval.tv_usec = 0;
820 itv.it_value.tv_sec = 0;
821 itv.it_value.tv_usec = 0;
822 setitimer(ITIMER_REAL, &itv, NULL);
825 sigaction(SIGIO, &act, NULL);
826 fcntl(rtc_fd, F_SETFL, O_ASYNC);
827 fcntl(rtc_fd, F_SETOWN, getpid());
830 pit_min_timer_count = ((uint64_t)itv.it_interval.tv_usec *
837 void quit_timers(void)
840 timeKillEvent(timerID);
844 /***********************************************************/
849 int serial_open_device(void)
856 int serial_open_device(void)
858 char slave_name[1024];
859 int master_fd, slave_fd;
861 if (serial_console == NULL && nographic) {
862 /* use console for serial port */
865 if (openpty(&master_fd, &slave_fd, slave_name, NULL, NULL) < 0) {
866 fprintf(stderr, "warning: could not create pseudo terminal for serial port\n");
869 fprintf(stderr, "Serial port redirected to %s\n", slave_name);
876 /***********************************************************/
877 /* Linux network device redirectors */
879 void hex_dump(FILE *f, const uint8_t *buf, int size)
883 for(i=0;i<size;i+=16) {
887 fprintf(f, "%08x ", i);
890 fprintf(f, " %02x", buf[i+j]);
897 if (c < ' ' || c > '~')
905 void qemu_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
907 nd->send_packet(nd, buf, size);
910 void qemu_add_read_packet(NetDriverState *nd, IOCanRWHandler *fd_can_read,
911 IOReadHandler *fd_read, void *opaque)
913 nd->add_read_packet(nd, fd_can_read, fd_read, opaque);
916 /* dummy network adapter */
918 static void dummy_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
922 static void dummy_add_read_packet(NetDriverState *nd,
923 IOCanRWHandler *fd_can_read,
924 IOReadHandler *fd_read, void *opaque)
928 static int net_dummy_init(NetDriverState *nd)
930 nd->send_packet = dummy_send_packet;
931 nd->add_read_packet = dummy_add_read_packet;
932 pstrcpy(nd->ifname, sizeof(nd->ifname), "dummy");
936 #if defined(CONFIG_SLIRP)
938 /* slirp network adapter */
940 static void *slirp_fd_opaque;
941 static IOCanRWHandler *slirp_fd_can_read;
942 static IOReadHandler *slirp_fd_read;
943 static int slirp_inited;
945 int slirp_can_output(void)
947 return slirp_fd_can_read(slirp_fd_opaque);
950 void slirp_output(const uint8_t *pkt, int pkt_len)
954 hex_dump(stdout, pkt, pkt_len);
956 slirp_fd_read(slirp_fd_opaque, pkt, pkt_len);
959 static void slirp_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
963 hex_dump(stdout, buf, size);
965 slirp_input(buf, size);
968 static void slirp_add_read_packet(NetDriverState *nd,
969 IOCanRWHandler *fd_can_read,
970 IOReadHandler *fd_read, void *opaque)
972 slirp_fd_opaque = opaque;
973 slirp_fd_can_read = fd_can_read;
974 slirp_fd_read = fd_read;
977 static int net_slirp_init(NetDriverState *nd)
983 nd->send_packet = slirp_send_packet;
984 nd->add_read_packet = slirp_add_read_packet;
985 pstrcpy(nd->ifname, sizeof(nd->ifname), "slirp");
989 #endif /* CONFIG_SLIRP */
993 static int tun_open(char *ifname, int ifname_size)
999 fd = open("/dev/tap", O_RDWR);
1001 fprintf(stderr, "warning: could not open /dev/tap: no virtual network emulation\n");
1006 dev = devname(s.st_rdev, S_IFCHR);
1007 pstrcpy(ifname, ifname_size, dev);
1009 fcntl(fd, F_SETFL, O_NONBLOCK);
1013 static int tun_open(char *ifname, int ifname_size)
1018 fd = open("/dev/net/tun", O_RDWR);
1020 fprintf(stderr, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1023 memset(&ifr, 0, sizeof(ifr));
1024 ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
1025 pstrcpy(ifr.ifr_name, IFNAMSIZ, "tun%d");
1026 ret = ioctl(fd, TUNSETIFF, (void *) &ifr);
1028 fprintf(stderr, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1032 printf("Connected to host network interface: %s\n", ifr.ifr_name);
1033 pstrcpy(ifname, ifname_size, ifr.ifr_name);
1034 fcntl(fd, F_SETFL, O_NONBLOCK);
1039 static void tun_send_packet(NetDriverState *nd, const uint8_t *buf, int size)
1041 write(nd->fd, buf, size);
1044 static void tun_add_read_packet(NetDriverState *nd,
1045 IOCanRWHandler *fd_can_read,
1046 IOReadHandler *fd_read, void *opaque)
1048 qemu_add_fd_read_handler(nd->fd, fd_can_read, fd_read, opaque);
1051 static int net_tun_init(NetDriverState *nd)
1057 nd->fd = tun_open(nd->ifname, sizeof(nd->ifname));
1061 /* try to launch network init script */
1066 *parg++ = network_script;
1067 *parg++ = nd->ifname;
1069 execv(network_script, args);
1072 while (waitpid(pid, &status, 0) != pid);
1073 if (!WIFEXITED(status) ||
1074 WEXITSTATUS(status) != 0) {
1075 fprintf(stderr, "%s: could not launch network script\n",
1079 nd->send_packet = tun_send_packet;
1080 nd->add_read_packet = tun_add_read_packet;
1084 static int net_fd_init(NetDriverState *nd, int fd)
1087 nd->send_packet = tun_send_packet;
1088 nd->add_read_packet = tun_add_read_packet;
1089 pstrcpy(nd->ifname, sizeof(nd->ifname), "tunfd");
1093 #endif /* !_WIN32 */
1095 /***********************************************************/
1100 static void term_exit(void)
1104 static void term_init(void)
1110 /* init terminal so that we can grab keys */
1111 static struct termios oldtty;
1113 static void term_exit(void)
1115 tcsetattr (0, TCSANOW, &oldtty);
1118 static void term_init(void)
1122 tcgetattr (0, &tty);
1125 tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
1126 |INLCR|IGNCR|ICRNL|IXON);
1127 tty.c_oflag |= OPOST;
1128 tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
1129 /* if graphical mode, we allow Ctrl-C handling */
1131 tty.c_lflag &= ~ISIG;
1132 tty.c_cflag &= ~(CSIZE|PARENB);
1135 tty.c_cc[VTIME] = 0;
1137 tcsetattr (0, TCSANOW, &tty);
1141 fcntl(0, F_SETFL, O_NONBLOCK);
1146 static void dumb_update(DisplayState *ds, int x, int y, int w, int h)
1150 static void dumb_resize(DisplayState *ds, int w, int h)
1154 static void dumb_refresh(DisplayState *ds)
1156 vga_update_display();
1159 void dumb_display_init(DisplayState *ds)
1164 ds->dpy_update = dumb_update;
1165 ds->dpy_resize = dumb_resize;
1166 ds->dpy_refresh = dumb_refresh;
1169 #if !defined(CONFIG_SOFTMMU)
1170 /***********************************************************/
1171 /* cpu signal handler */
1172 static void host_segv_handler(int host_signum, siginfo_t *info,
1175 if (cpu_signal_handler(host_signum, info, puc))
1182 /***********************************************************/
1185 #define MAX_IO_HANDLERS 64
1187 typedef struct IOHandlerRecord {
1189 IOCanRWHandler *fd_can_read;
1190 IOReadHandler *fd_read;
1192 /* temporary data */
1195 struct IOHandlerRecord *next;
1198 static IOHandlerRecord *first_io_handler;
1200 int qemu_add_fd_read_handler(int fd, IOCanRWHandler *fd_can_read,
1201 IOReadHandler *fd_read, void *opaque)
1203 IOHandlerRecord *ioh;
1205 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
1209 ioh->fd_can_read = fd_can_read;
1210 ioh->fd_read = fd_read;
1211 ioh->opaque = opaque;
1212 ioh->next = first_io_handler;
1213 first_io_handler = ioh;
1217 void qemu_del_fd_read_handler(int fd)
1219 IOHandlerRecord **pioh, *ioh;
1221 pioh = &first_io_handler;
1226 if (ioh->fd == fd) {
1234 /***********************************************************/
1235 /* savevm/loadvm support */
1237 void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size)
1239 fwrite(buf, 1, size, f);
1242 void qemu_put_byte(QEMUFile *f, int v)
1247 void qemu_put_be16(QEMUFile *f, unsigned int v)
1249 qemu_put_byte(f, v >> 8);
1250 qemu_put_byte(f, v);
1253 void qemu_put_be32(QEMUFile *f, unsigned int v)
1255 qemu_put_byte(f, v >> 24);
1256 qemu_put_byte(f, v >> 16);
1257 qemu_put_byte(f, v >> 8);
1258 qemu_put_byte(f, v);
1261 void qemu_put_be64(QEMUFile *f, uint64_t v)
1263 qemu_put_be32(f, v >> 32);
1264 qemu_put_be32(f, v);
1267 int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size)
1269 return fread(buf, 1, size, f);
1272 int qemu_get_byte(QEMUFile *f)
1282 unsigned int qemu_get_be16(QEMUFile *f)
1285 v = qemu_get_byte(f) << 8;
1286 v |= qemu_get_byte(f);
1290 unsigned int qemu_get_be32(QEMUFile *f)
1293 v = qemu_get_byte(f) << 24;
1294 v |= qemu_get_byte(f) << 16;
1295 v |= qemu_get_byte(f) << 8;
1296 v |= qemu_get_byte(f);
1300 uint64_t qemu_get_be64(QEMUFile *f)
1303 v = (uint64_t)qemu_get_be32(f) << 32;
1304 v |= qemu_get_be32(f);
1308 int64_t qemu_ftell(QEMUFile *f)
1313 int64_t qemu_fseek(QEMUFile *f, int64_t pos, int whence)
1315 if (fseek(f, pos, whence) < 0)
1320 typedef struct SaveStateEntry {
1324 SaveStateHandler *save_state;
1325 LoadStateHandler *load_state;
1327 struct SaveStateEntry *next;
1330 static SaveStateEntry *first_se;
1332 int register_savevm(const char *idstr,
1335 SaveStateHandler *save_state,
1336 LoadStateHandler *load_state,
1339 SaveStateEntry *se, **pse;
1341 se = qemu_malloc(sizeof(SaveStateEntry));
1344 pstrcpy(se->idstr, sizeof(se->idstr), idstr);
1345 se->instance_id = instance_id;
1346 se->version_id = version_id;
1347 se->save_state = save_state;
1348 se->load_state = load_state;
1349 se->opaque = opaque;
1352 /* add at the end of list */
1354 while (*pse != NULL)
1355 pse = &(*pse)->next;
1360 #define QEMU_VM_FILE_MAGIC 0x5145564d
1361 #define QEMU_VM_FILE_VERSION 0x00000001
1363 int qemu_savevm(const char *filename)
1367 int len, len_pos, cur_pos, saved_vm_running, ret;
1369 saved_vm_running = vm_running;
1372 f = fopen(filename, "wb");
1378 qemu_put_be32(f, QEMU_VM_FILE_MAGIC);
1379 qemu_put_be32(f, QEMU_VM_FILE_VERSION);
1381 for(se = first_se; se != NULL; se = se->next) {
1383 len = strlen(se->idstr);
1384 qemu_put_byte(f, len);
1385 qemu_put_buffer(f, se->idstr, len);
1387 qemu_put_be32(f, se->instance_id);
1388 qemu_put_be32(f, se->version_id);
1390 /* record size: filled later */
1392 qemu_put_be32(f, 0);
1394 se->save_state(f, se->opaque);
1396 /* fill record size */
1398 len = ftell(f) - len_pos - 4;
1399 fseek(f, len_pos, SEEK_SET);
1400 qemu_put_be32(f, len);
1401 fseek(f, cur_pos, SEEK_SET);
1407 if (saved_vm_running)
1412 static SaveStateEntry *find_se(const char *idstr, int instance_id)
1416 for(se = first_se; se != NULL; se = se->next) {
1417 if (!strcmp(se->idstr, idstr) &&
1418 instance_id == se->instance_id)
1424 int qemu_loadvm(const char *filename)
1428 int len, cur_pos, ret, instance_id, record_len, version_id;
1429 int saved_vm_running;
1433 saved_vm_running = vm_running;
1436 f = fopen(filename, "rb");
1442 v = qemu_get_be32(f);
1443 if (v != QEMU_VM_FILE_MAGIC)
1445 v = qemu_get_be32(f);
1446 if (v != QEMU_VM_FILE_VERSION) {
1453 #if defined (DO_TB_FLUSH)
1454 tb_flush(global_env);
1456 len = qemu_get_byte(f);
1459 qemu_get_buffer(f, idstr, len);
1461 instance_id = qemu_get_be32(f);
1462 version_id = qemu_get_be32(f);
1463 record_len = qemu_get_be32(f);
1465 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1466 idstr, instance_id, version_id, record_len);
1469 se = find_se(idstr, instance_id);
1471 fprintf(stderr, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1472 instance_id, idstr);
1474 ret = se->load_state(f, se->opaque, version_id);
1476 fprintf(stderr, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1477 instance_id, idstr);
1480 /* always seek to exact end of record */
1481 qemu_fseek(f, cur_pos + record_len, SEEK_SET);
1486 if (saved_vm_running)
1491 /***********************************************************/
1492 /* cpu save/restore */
1494 #if defined(TARGET_I386)
1496 static void cpu_put_seg(QEMUFile *f, SegmentCache *dt)
1498 qemu_put_be32(f, (uint32_t)dt->base);
1499 qemu_put_be32(f, dt->limit);
1500 qemu_put_be32(f, dt->flags);
1503 static void cpu_get_seg(QEMUFile *f, SegmentCache *dt)
1505 dt->base = (uint8_t *)qemu_get_be32(f);
1506 dt->limit = qemu_get_be32(f);
1507 dt->flags = qemu_get_be32(f);
1510 void cpu_save(QEMUFile *f, void *opaque)
1512 CPUState *env = opaque;
1513 uint16_t fptag, fpus, fpuc;
1517 for(i = 0; i < 8; i++)
1518 qemu_put_be32s(f, &env->regs[i]);
1519 qemu_put_be32s(f, &env->eip);
1520 qemu_put_be32s(f, &env->eflags);
1521 qemu_put_be32s(f, &env->eflags);
1522 hflags = env->hflags; /* XXX: suppress most of the redundant hflags */
1523 qemu_put_be32s(f, &hflags);
1527 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1529 for (i=7; i>=0; i--) {
1531 if (env->fptags[i]) {
1536 qemu_put_be16s(f, &fpuc);
1537 qemu_put_be16s(f, &fpus);
1538 qemu_put_be16s(f, &fptag);
1540 for(i = 0; i < 8; i++) {
1543 cpu_get_fp80(&mant, &exp, env->fpregs[i]);
1544 qemu_put_be64(f, mant);
1545 qemu_put_be16(f, exp);
1548 for(i = 0; i < 6; i++)
1549 cpu_put_seg(f, &env->segs[i]);
1550 cpu_put_seg(f, &env->ldt);
1551 cpu_put_seg(f, &env->tr);
1552 cpu_put_seg(f, &env->gdt);
1553 cpu_put_seg(f, &env->idt);
1555 qemu_put_be32s(f, &env->sysenter_cs);
1556 qemu_put_be32s(f, &env->sysenter_esp);
1557 qemu_put_be32s(f, &env->sysenter_eip);
1559 qemu_put_be32s(f, &env->cr[0]);
1560 qemu_put_be32s(f, &env->cr[2]);
1561 qemu_put_be32s(f, &env->cr[3]);
1562 qemu_put_be32s(f, &env->cr[4]);
1564 for(i = 0; i < 8; i++)
1565 qemu_put_be32s(f, &env->dr[i]);
1568 qemu_put_be32s(f, &env->a20_mask);
1571 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1573 CPUState *env = opaque;
1576 uint16_t fpus, fpuc, fptag;
1578 if (version_id != 1)
1580 for(i = 0; i < 8; i++)
1581 qemu_get_be32s(f, &env->regs[i]);
1582 qemu_get_be32s(f, &env->eip);
1583 qemu_get_be32s(f, &env->eflags);
1584 qemu_get_be32s(f, &env->eflags);
1585 qemu_get_be32s(f, &hflags);
1587 qemu_get_be16s(f, &fpuc);
1588 qemu_get_be16s(f, &fpus);
1589 qemu_get_be16s(f, &fptag);
1591 for(i = 0; i < 8; i++) {
1594 mant = qemu_get_be64(f);
1595 exp = qemu_get_be16(f);
1596 env->fpregs[i] = cpu_set_fp80(mant, exp);
1600 env->fpstt = (fpus >> 11) & 7;
1601 env->fpus = fpus & ~0x3800;
1602 for(i = 0; i < 8; i++) {
1603 env->fptags[i] = ((fptag & 3) == 3);
1607 for(i = 0; i < 6; i++)
1608 cpu_get_seg(f, &env->segs[i]);
1609 cpu_get_seg(f, &env->ldt);
1610 cpu_get_seg(f, &env->tr);
1611 cpu_get_seg(f, &env->gdt);
1612 cpu_get_seg(f, &env->idt);
1614 qemu_get_be32s(f, &env->sysenter_cs);
1615 qemu_get_be32s(f, &env->sysenter_esp);
1616 qemu_get_be32s(f, &env->sysenter_eip);
1618 qemu_get_be32s(f, &env->cr[0]);
1619 qemu_get_be32s(f, &env->cr[2]);
1620 qemu_get_be32s(f, &env->cr[3]);
1621 qemu_get_be32s(f, &env->cr[4]);
1623 for(i = 0; i < 8; i++)
1624 qemu_get_be32s(f, &env->dr[i]);
1627 qemu_get_be32s(f, &env->a20_mask);
1629 /* XXX: compute hflags from scratch, except for CPL and IIF */
1630 env->hflags = hflags;
1635 #elif defined(TARGET_PPC)
1636 void cpu_save(QEMUFile *f, void *opaque)
1640 int cpu_load(QEMUFile *f, void *opaque, int version_id)
1646 #warning No CPU save/restore functions
1650 /***********************************************************/
1651 /* ram save/restore */
1653 /* we just avoid storing empty pages */
1654 static void ram_put_page(QEMUFile *f, const uint8_t *buf, int len)
1659 for(i = 1; i < len; i++) {
1663 qemu_put_byte(f, 1);
1664 qemu_put_byte(f, v);
1667 qemu_put_byte(f, 0);
1668 qemu_put_buffer(f, buf, len);
1671 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
1675 v = qemu_get_byte(f);
1678 if (qemu_get_buffer(f, buf, len) != len)
1682 v = qemu_get_byte(f);
1683 memset(buf, v, len);
1691 static void ram_save(QEMUFile *f, void *opaque)
1694 qemu_put_be32(f, phys_ram_size);
1695 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1696 ram_put_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1700 static int ram_load(QEMUFile *f, void *opaque, int version_id)
1704 if (version_id != 1)
1706 if (qemu_get_be32(f) != phys_ram_size)
1708 for(i = 0; i < phys_ram_size; i+= TARGET_PAGE_SIZE) {
1709 ret = ram_get_page(f, phys_ram_base + i, TARGET_PAGE_SIZE);
1716 /***********************************************************/
1717 /* main execution loop */
1719 void gui_update(void *opaque)
1721 display_state.dpy_refresh(&display_state);
1722 qemu_mod_timer(gui_timer, GUI_REFRESH_INTERVAL + qemu_get_clock(rt_clock));
1725 /* XXX: support several handlers */
1726 VMStopHandler *vm_stop_cb;
1727 VMStopHandler *vm_stop_opaque;
1729 int qemu_add_vm_stop_handler(VMStopHandler *cb, void *opaque)
1732 vm_stop_opaque = opaque;
1736 void qemu_del_vm_stop_handler(VMStopHandler *cb, void *opaque)
1749 void vm_stop(int reason)
1752 cpu_disable_ticks();
1756 vm_stop_cb(vm_stop_opaque, reason);
1765 struct pollfd ufds[MAX_IO_HANDLERS + 1], *pf;
1766 IOHandlerRecord *ioh, *ioh_next;
1771 CPUState *env = global_env;
1775 ret = cpu_exec(env);
1776 if (reset_requested) {
1777 ret = EXCP_INTERRUPT;
1780 if (ret == EXCP_DEBUG) {
1781 vm_stop(EXCP_DEBUG);
1783 /* if hlt instruction, we wait until the next IRQ */
1784 /* XXX: use timeout computed from timers */
1785 if (ret == EXCP_HLT)
1798 /* poll any events */
1799 /* XXX: separate device handlers from system ones */
1801 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
1802 if (!ioh->fd_can_read) {
1805 pf->events = POLLIN;
1809 max_size = ioh->fd_can_read(ioh->opaque);
1811 if (max_size > sizeof(buf))
1812 max_size = sizeof(buf);
1814 pf->events = POLLIN;
1821 ioh->max_size = max_size;
1824 ret = poll(ufds, pf - ufds, timeout);
1826 /* XXX: better handling of removal */
1827 for(ioh = first_io_handler; ioh != NULL; ioh = ioh_next) {
1828 ioh_next = ioh->next;
1831 if (pf->revents & POLLIN) {
1832 if (ioh->max_size == 0) {
1833 /* just a read event */
1834 ioh->fd_read(ioh->opaque, NULL, 0);
1836 n = read(ioh->fd, buf, ioh->max_size);
1838 ioh->fd_read(ioh->opaque, buf, n);
1839 } else if (errno != EAGAIN) {
1840 ioh->fd_read(ioh->opaque, NULL, -errno);
1848 #if defined(CONFIG_SLIRP)
1849 /* XXX: merge with poll() */
1851 fd_set rfds, wfds, xfds;
1859 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
1862 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
1864 slirp_select_poll(&rfds, &wfds, &xfds);
1872 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
1873 qemu_get_clock(vm_clock));
1875 if (audio_enabled) {
1876 /* XXX: add explicit timer */
1880 /* run dma transfers, if any */
1884 /* real time timers */
1885 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
1886 qemu_get_clock(rt_clock));
1888 cpu_disable_ticks();
1894 printf("QEMU PC emulator version " QEMU_VERSION ", Copyright (c) 2003-2004 Fabrice Bellard\n"
1895 "usage: %s [options] [disk_image]\n"
1897 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
1899 "Standard options:\n"
1900 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
1901 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
1902 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
1903 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
1904 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
1905 "-snapshot write to temporary files instead of disk image files\n"
1906 "-m megs set virtual RAM size to megs MB\n"
1907 "-nographic disable graphical output and redirect serial I/Os to console\n"
1908 "-enable-audio enable audio support\n"
1910 "Network options:\n"
1911 "-nics n simulate 'n' network cards [default=1]\n"
1912 "-macaddr addr set the mac address of the first interface\n"
1913 "-n script set tap/tun network init script [default=%s]\n"
1914 "-tun-fd fd use this fd as already opened tap/tun interface\n"
1916 "-user-net use user mode network stack [default if no tap/tun script]\n"
1918 "-dummy-net use dummy network stack\n"
1920 "Linux boot specific:\n"
1921 "-kernel bzImage use 'bzImage' as kernel image\n"
1922 "-append cmdline use 'cmdline' as kernel command line\n"
1923 "-initrd file use 'file' as initial ram disk\n"
1925 "Debug/Expert options:\n"
1926 "-S freeze CPU at startup (use 'c' to start execution)\n"
1927 "-s wait gdb connection to port %d\n"
1928 "-p port change gdb connection port\n"
1929 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
1930 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
1931 "-L path set the directory for the BIOS and VGA BIOS\n"
1932 #ifdef USE_CODE_COPY
1933 "-no-code-copy disable code copy acceleration\n"
1937 "During emulation, use C-a h to get terminal commands:\n",
1938 #ifdef CONFIG_SOFTMMU
1943 DEFAULT_NETWORK_SCRIPT,
1944 DEFAULT_GDBSTUB_PORT,
1947 #ifndef CONFIG_SOFTMMU
1949 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
1950 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
1956 #define HAS_ARG 0x0001
1969 QEMU_OPTION_snapshot,
1971 QEMU_OPTION_nographic,
1972 QEMU_OPTION_enable_audio,
1975 QEMU_OPTION_macaddr,
1978 QEMU_OPTION_user_net,
1979 QEMU_OPTION_dummy_net,
1991 QEMU_OPTION_no_code_copy,
1995 typedef struct QEMUOption {
2001 const QEMUOption qemu_options[] = {
2002 { "h", 0, QEMU_OPTION_h },
2004 { "fda", HAS_ARG, QEMU_OPTION_fda },
2005 { "fdb", HAS_ARG, QEMU_OPTION_fdb },
2006 { "hda", HAS_ARG, QEMU_OPTION_hda },
2007 { "hdb", HAS_ARG, QEMU_OPTION_hdb },
2008 { "hdc", HAS_ARG, QEMU_OPTION_hdc },
2009 { "hdd", HAS_ARG, QEMU_OPTION_hdd },
2010 { "cdrom", HAS_ARG, QEMU_OPTION_cdrom },
2011 { "boot", HAS_ARG, QEMU_OPTION_boot },
2012 { "snapshot", 0, QEMU_OPTION_snapshot },
2013 { "m", HAS_ARG, QEMU_OPTION_m },
2014 { "nographic", 0, QEMU_OPTION_nographic },
2015 { "enable-audio", 0, QEMU_OPTION_enable_audio },
2017 { "nics", HAS_ARG, QEMU_OPTION_nics},
2018 { "macaddr", HAS_ARG, QEMU_OPTION_macaddr},
2019 { "n", HAS_ARG, QEMU_OPTION_n },
2020 { "tun-fd", HAS_ARG, QEMU_OPTION_tun_fd },
2022 { "user-net", 0, QEMU_OPTION_user_net },
2024 { "dummy-net", 0, QEMU_OPTION_dummy_net },
2026 { "kernel", HAS_ARG, QEMU_OPTION_kernel },
2027 { "append", HAS_ARG, QEMU_OPTION_append },
2028 { "initrd", HAS_ARG, QEMU_OPTION_initrd },
2030 { "S", 0, QEMU_OPTION_S },
2031 { "s", 0, QEMU_OPTION_s },
2032 { "p", HAS_ARG, QEMU_OPTION_p },
2033 { "d", HAS_ARG, QEMU_OPTION_d },
2034 { "hdachs", HAS_ARG, QEMU_OPTION_hdachs },
2035 { "L", HAS_ARG, QEMU_OPTION_L },
2036 { "no-code-copy", 0, QEMU_OPTION_no_code_copy },
2037 { "pci", 0, QEMU_OPTION_pci },
2041 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2043 /* this stack is only used during signal handling */
2044 #define SIGNAL_STACK_SIZE 32768
2046 static uint8_t *signal_stack;
2050 #define NET_IF_TUN 0
2051 #define NET_IF_USER 1
2052 #define NET_IF_DUMMY 2
2054 int main(int argc, char **argv)
2056 #ifdef CONFIG_GDBSTUB
2057 int use_gdbstub, gdbstub_port;
2060 int snapshot, linux_boot;
2062 const char *initrd_filename;
2063 const char *hd_filename[MAX_DISKS], *fd_filename[MAX_FD];
2064 const char *kernel_filename, *kernel_cmdline;
2065 DisplayState *ds = &display_state;
2066 int cyls, heads, secs;
2067 int start_emulation = 1;
2069 int net_if_type, nb_tun_fds, tun_fds[MAX_NICS];
2071 const char *r, *optarg;
2073 #if !defined(CONFIG_SOFTMMU)
2074 /* we never want that malloc() uses mmap() */
2075 mallopt(M_MMAP_THRESHOLD, 4096 * 1024);
2077 initrd_filename = NULL;
2078 for(i = 0; i < MAX_FD; i++)
2079 fd_filename[i] = NULL;
2080 for(i = 0; i < MAX_DISKS; i++)
2081 hd_filename[i] = NULL;
2082 ram_size = 32 * 1024 * 1024;
2083 vga_ram_size = VGA_RAM_SIZE;
2084 pstrcpy(network_script, sizeof(network_script), DEFAULT_NETWORK_SCRIPT);
2085 #ifdef CONFIG_GDBSTUB
2087 gdbstub_port = DEFAULT_GDBSTUB_PORT;
2091 kernel_filename = NULL;
2092 kernel_cmdline = "";
2094 cyls = heads = secs = 0;
2099 /* default mac address of the first network interface */
2113 hd_filename[0] = argv[optind++];
2115 const QEMUOption *popt;
2118 popt = qemu_options;
2121 fprintf(stderr, "%s: invalid option -- '%s'\n",
2125 if (!strcmp(popt->name, r + 1))
2129 if (popt->flags & HAS_ARG) {
2130 if (optind >= argc) {
2131 fprintf(stderr, "%s: option '%s' requires an argument\n",
2135 optarg = argv[optind++];
2140 switch(popt->index) {
2141 case QEMU_OPTION_initrd:
2142 initrd_filename = optarg;
2144 case QEMU_OPTION_hda:
2145 hd_filename[0] = optarg;
2147 case QEMU_OPTION_hdb:
2148 hd_filename[1] = optarg;
2150 case QEMU_OPTION_snapshot:
2153 case QEMU_OPTION_hdachs:
2157 cyls = strtol(p, (char **)&p, 0);
2161 heads = strtol(p, (char **)&p, 0);
2165 secs = strtol(p, (char **)&p, 0);
2172 case QEMU_OPTION_nographic:
2175 case QEMU_OPTION_kernel:
2176 kernel_filename = optarg;
2178 case QEMU_OPTION_append:
2179 kernel_cmdline = optarg;
2181 case QEMU_OPTION_tun_fd:
2185 net_if_type = NET_IF_TUN;
2186 if (nb_tun_fds < MAX_NICS) {
2187 fd = strtol(optarg, (char **)&p, 0);
2189 fprintf(stderr, "qemu: invalid fd for network interface %d\n", nb_tun_fds);
2192 tun_fds[nb_tun_fds++] = fd;
2196 case QEMU_OPTION_hdc:
2197 hd_filename[2] = optarg;
2200 case QEMU_OPTION_hdd:
2201 hd_filename[3] = optarg;
2203 case QEMU_OPTION_cdrom:
2204 hd_filename[2] = optarg;
2207 case QEMU_OPTION_boot:
2208 boot_device = optarg[0];
2209 if (boot_device != 'a' && boot_device != 'b' &&
2210 boot_device != 'c' && boot_device != 'd') {
2211 fprintf(stderr, "qemu: invalid boot device '%c'\n", boot_device);
2215 case QEMU_OPTION_fda:
2216 fd_filename[0] = optarg;
2218 case QEMU_OPTION_fdb:
2219 fd_filename[1] = optarg;
2221 case QEMU_OPTION_no_code_copy:
2222 code_copy_enabled = 0;
2224 case QEMU_OPTION_nics:
2225 nb_nics = atoi(optarg);
2226 if (nb_nics < 0 || nb_nics > MAX_NICS) {
2227 fprintf(stderr, "qemu: invalid number of network interfaces\n");
2231 case QEMU_OPTION_macaddr:
2236 for(i = 0; i < 6; i++) {
2237 macaddr[i] = strtol(p, (char **)&p, 16);
2244 fprintf(stderr, "qemu: invalid syntax for ethernet address\n");
2252 case QEMU_OPTION_user_net:
2253 net_if_type = NET_IF_USER;
2255 case QEMU_OPTION_dummy_net:
2256 net_if_type = NET_IF_DUMMY;
2258 case QEMU_OPTION_enable_audio:
2265 ram_size = atoi(optarg) * 1024 * 1024;
2268 if (ram_size > PHYS_RAM_MAX_SIZE) {
2269 fprintf(stderr, "qemu: at most %d MB RAM can be simulated\n",
2270 PHYS_RAM_MAX_SIZE / (1024 * 1024));
2279 mask = cpu_str_to_log_mask(optarg);
2281 printf("Log items (comma separated):\n");
2282 for(item = cpu_log_items; item->mask != 0; item++) {
2283 printf("%-10s %s\n", item->name, item->help);
2291 pstrcpy(network_script, sizeof(network_script), optarg);
2293 #ifdef CONFIG_GDBSTUB
2298 gdbstub_port = atoi(optarg);
2305 start_emulation = 0;
2307 case QEMU_OPTION_pci:
2314 linux_boot = (kernel_filename != NULL);
2316 if (!linux_boot && hd_filename[0] == '\0' && hd_filename[2] == '\0' &&
2317 fd_filename[0] == '\0')
2320 /* boot to cd by default if no hard disk */
2321 if (hd_filename[0] == '\0' && boot_device == 'c') {
2322 if (fd_filename[0] != '\0')
2328 #if !defined(CONFIG_SOFTMMU)
2329 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2331 static uint8_t stdout_buf[4096];
2332 setvbuf(stdout, stdout_buf, _IOLBF, sizeof(stdout_buf));
2335 setvbuf(stdout, NULL, _IOLBF, 0);
2338 /* init host network redirectors */
2339 if (net_if_type == -1) {
2340 net_if_type = NET_IF_TUN;
2341 #if defined(CONFIG_SLIRP)
2342 if (access(network_script, R_OK) < 0) {
2343 net_if_type = NET_IF_USER;
2348 for(i = 0; i < nb_nics; i++) {
2349 NetDriverState *nd = &nd_table[i];
2351 /* init virtual mac address */
2352 nd->macaddr[0] = macaddr[0];
2353 nd->macaddr[1] = macaddr[1];
2354 nd->macaddr[2] = macaddr[2];
2355 nd->macaddr[3] = macaddr[3];
2356 nd->macaddr[4] = macaddr[4];
2357 nd->macaddr[5] = macaddr[5] + i;
2358 switch(net_if_type) {
2359 #if defined(CONFIG_SLIRP)
2364 #if !defined(_WIN32)
2366 if (i < nb_tun_fds) {
2367 net_fd_init(nd, tun_fds[i]);
2369 if (net_tun_init(nd) < 0)
2381 /* init the memory */
2382 phys_ram_size = ram_size + vga_ram_size;
2384 #ifdef CONFIG_SOFTMMU
2386 /* mallocs are always aligned on BSD. */
2387 phys_ram_base = malloc(phys_ram_size);
2389 phys_ram_base = memalign(TARGET_PAGE_SIZE, phys_ram_size);
2391 if (!phys_ram_base) {
2392 fprintf(stderr, "Could not allocate physical memory\n");
2396 /* as we must map the same page at several addresses, we must use
2401 tmpdir = getenv("QEMU_TMPDIR");
2404 snprintf(phys_ram_file, sizeof(phys_ram_file), "%s/vlXXXXXX", tmpdir);
2405 if (mkstemp(phys_ram_file) < 0) {
2406 fprintf(stderr, "Could not create temporary memory file '%s'\n",
2410 phys_ram_fd = open(phys_ram_file, O_CREAT | O_TRUNC | O_RDWR, 0600);
2411 if (phys_ram_fd < 0) {
2412 fprintf(stderr, "Could not open temporary memory file '%s'\n",
2416 ftruncate(phys_ram_fd, phys_ram_size);
2417 unlink(phys_ram_file);
2418 phys_ram_base = mmap(get_mmap_addr(phys_ram_size),
2420 PROT_WRITE | PROT_READ, MAP_SHARED | MAP_FIXED,
2422 if (phys_ram_base == MAP_FAILED) {
2423 fprintf(stderr, "Could not map physical memory\n");
2429 /* we always create the cdrom drive, even if no disk is there */
2431 bs_table[2] = bdrv_new("cdrom");
2432 bdrv_set_type_hint(bs_table[2], BDRV_TYPE_CDROM);
2435 /* open the virtual block devices */
2436 for(i = 0; i < MAX_DISKS; i++) {
2437 if (hd_filename[i]) {
2440 snprintf(buf, sizeof(buf), "hd%c", i + 'a');
2441 bs_table[i] = bdrv_new(buf);
2443 if (bdrv_open(bs_table[i], hd_filename[i], snapshot) < 0) {
2444 fprintf(stderr, "qemu: could not open hard disk image '%s\n",
2448 if (i == 0 && cyls != 0)
2449 bdrv_set_geometry_hint(bs_table[i], cyls, heads, secs);
2453 /* we always create at least one floppy disk */
2454 fd_table[0] = bdrv_new("fda");
2455 bdrv_set_type_hint(fd_table[0], BDRV_TYPE_FLOPPY);
2457 for(i = 0; i < MAX_FD; i++) {
2458 if (fd_filename[i]) {
2461 snprintf(buf, sizeof(buf), "fd%c", i + 'a');
2462 fd_table[i] = bdrv_new(buf);
2463 bdrv_set_type_hint(fd_table[i], BDRV_TYPE_FLOPPY);
2465 if (fd_filename[i] != '\0') {
2466 if (bdrv_open(fd_table[i], fd_filename[i], snapshot) < 0) {
2467 fprintf(stderr, "qemu: could not open floppy disk image '%s'\n",
2475 /* init CPU state */
2478 cpu_single_env = env;
2480 register_savevm("timer", 0, 1, timer_save, timer_load, env);
2481 register_savevm("cpu", 0, 1, cpu_save, cpu_load, env);
2482 register_savevm("ram", 0, 1, ram_save, ram_load, NULL);
2485 cpu_calibrate_ticks();
2489 dumb_display_init(ds);
2492 sdl_display_init(ds);
2494 dumb_display_init(ds);
2498 /* setup cpu signal handlers for MMU / self modifying code handling */
2499 #if !defined(CONFIG_SOFTMMU)
2501 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2504 signal_stack = memalign(16, SIGNAL_STACK_SIZE);
2505 stk.ss_sp = signal_stack;
2506 stk.ss_size = SIGNAL_STACK_SIZE;
2509 if (sigaltstack(&stk, NULL) < 0) {
2510 perror("sigaltstack");
2516 struct sigaction act;
2518 sigfillset(&act.sa_mask);
2519 act.sa_flags = SA_SIGINFO;
2520 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2521 act.sa_flags |= SA_ONSTACK;
2523 act.sa_sigaction = host_segv_handler;
2524 sigaction(SIGSEGV, &act, NULL);
2525 sigaction(SIGBUS, &act, NULL);
2526 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2527 sigaction(SIGFPE, &act, NULL);
2534 struct sigaction act;
2535 sigfillset(&act.sa_mask);
2537 act.sa_handler = SIG_IGN;
2538 sigaction(SIGPIPE, &act, NULL);
2543 #if defined(TARGET_I386)
2544 pc_init(ram_size, vga_ram_size, boot_device,
2545 ds, fd_filename, snapshot,
2546 kernel_filename, kernel_cmdline, initrd_filename);
2547 #elif defined(TARGET_PPC)
2548 ppc_init(ram_size, vga_ram_size, boot_device,
2549 ds, fd_filename, snapshot,
2550 kernel_filename, kernel_cmdline, initrd_filename);
2553 /* launched after the device init so that it can display or not a
2557 gui_timer = qemu_new_timer(rt_clock, gui_update, NULL);
2558 qemu_mod_timer(gui_timer, qemu_get_clock(rt_clock));
2560 #ifdef CONFIG_GDBSTUB
2562 if (gdbserver_start(gdbstub_port) < 0) {
2563 fprintf(stderr, "Could not open gdbserver socket on port %d\n",
2567 printf("Waiting gdb connection on port %d\n", gdbstub_port);
2571 if (start_emulation)