4 * Copyright (c) 2003-2004 Fabrice Bellard
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
34 #include <sys/times.h>
39 #include <sys/ioctl.h>
40 #include <sys/socket.h>
48 #include <linux/if_tun.h>
51 #include <linux/rtc.h>
55 #if defined(CONFIG_SLIRP)
61 #include <sys/timeb.h>
63 #define getopt_long_only getopt_long
64 #define memalign(align, size) malloc(size)
69 #if defined(__linux__)
70 /* SDL use the pthreads and they modify sigaction. We don't
72 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2))
73 extern void __libc_sigaction();
74 #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
76 extern void __sigaction();
77 #define sigaction(sig, act, oact) __sigaction(sig, act, oact)
79 #endif /* __linux__ */
80 #endif /* CONFIG_SDL */
88 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
90 //#define DEBUG_UNUSED_IOPORT
91 //#define DEBUG_IOPORT
93 #if !defined(CONFIG_SOFTMMU)
94 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
96 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
100 #define DEFAULT_RAM_SIZE 144
102 #define DEFAULT_RAM_SIZE 32
105 #define GUI_REFRESH_INTERVAL 30
107 /* XXX: use a two level table to limit memory usage */
108 #define MAX_IOPORTS 65536
110 const char *bios_dir
= CONFIG_QEMU_SHAREDIR
;
111 char phys_ram_file
[1024];
112 CPUState
*global_env
;
113 CPUState
*cpu_single_env
;
114 void *ioport_opaque
[MAX_IOPORTS
];
115 IOPortReadFunc
*ioport_read_table
[3][MAX_IOPORTS
];
116 IOPortWriteFunc
*ioport_write_table
[3][MAX_IOPORTS
];
117 BlockDriverState
*bs_table
[MAX_DISKS
], *fd_table
[MAX_FD
];
120 static DisplayState display_state
;
122 int64_t ticks_per_sec
;
123 int boot_device
= 'c';
125 static char network_script
[1024];
126 int pit_min_timer_count
= 0;
128 NetDriverState nd_table
[MAX_NICS
];
129 SerialState
*serial_console
;
130 QEMUTimer
*gui_timer
;
132 int audio_enabled
= 0;
134 int prep_enabled
= 0;
136 int cirrus_vga_enabled
= 0;
137 int graphic_width
= 640;
138 int graphic_height
= 480;
139 int graphic_depth
= 15;
141 /***********************************************************/
142 /* x86 ISA bus support */
144 target_phys_addr_t isa_mem_base
= 0;
146 uint32_t default_ioport_readb(void *opaque
, uint32_t address
)
148 #ifdef DEBUG_UNUSED_IOPORT
149 fprintf(stderr
, "inb: port=0x%04x\n", address
);
154 void default_ioport_writeb(void *opaque
, uint32_t address
, uint32_t data
)
156 #ifdef DEBUG_UNUSED_IOPORT
157 fprintf(stderr
, "outb: port=0x%04x data=0x%02x\n", address
, data
);
161 /* default is to make two byte accesses */
162 uint32_t default_ioport_readw(void *opaque
, uint32_t address
)
165 data
= ioport_read_table
[0][address
](ioport_opaque
[address
], address
);
166 address
= (address
+ 1) & (MAX_IOPORTS
- 1);
167 data
|= ioport_read_table
[0][address
](ioport_opaque
[address
], address
) << 8;
171 void default_ioport_writew(void *opaque
, uint32_t address
, uint32_t data
)
173 ioport_write_table
[0][address
](ioport_opaque
[address
], address
, data
& 0xff);
174 address
= (address
+ 1) & (MAX_IOPORTS
- 1);
175 ioport_write_table
[0][address
](ioport_opaque
[address
], address
, (data
>> 8) & 0xff);
178 uint32_t default_ioport_readl(void *opaque
, uint32_t address
)
180 #ifdef DEBUG_UNUSED_IOPORT
181 fprintf(stderr
, "inl: port=0x%04x\n", address
);
186 void default_ioport_writel(void *opaque
, uint32_t address
, uint32_t data
)
188 #ifdef DEBUG_UNUSED_IOPORT
189 fprintf(stderr
, "outl: port=0x%04x data=0x%02x\n", address
, data
);
193 void init_ioports(void)
197 for(i
= 0; i
< MAX_IOPORTS
; i
++) {
198 ioport_read_table
[0][i
] = default_ioport_readb
;
199 ioport_write_table
[0][i
] = default_ioport_writeb
;
200 ioport_read_table
[1][i
] = default_ioport_readw
;
201 ioport_write_table
[1][i
] = default_ioport_writew
;
202 ioport_read_table
[2][i
] = default_ioport_readl
;
203 ioport_write_table
[2][i
] = default_ioport_writel
;
207 /* size is the word size in byte */
208 int register_ioport_read(int start
, int length
, int size
,
209 IOPortReadFunc
*func
, void *opaque
)
215 } else if (size
== 2) {
217 } else if (size
== 4) {
220 hw_error("register_ioport_read: invalid size");
223 for(i
= start
; i
< start
+ length
; i
+= size
) {
224 ioport_read_table
[bsize
][i
] = func
;
225 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
226 hw_error("register_ioport_read: invalid opaque");
227 ioport_opaque
[i
] = opaque
;
232 /* size is the word size in byte */
233 int register_ioport_write(int start
, int length
, int size
,
234 IOPortWriteFunc
*func
, void *opaque
)
240 } else if (size
== 2) {
242 } else if (size
== 4) {
245 hw_error("register_ioport_write: invalid size");
248 for(i
= start
; i
< start
+ length
; i
+= size
) {
249 ioport_write_table
[bsize
][i
] = func
;
250 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
251 hw_error("register_ioport_read: invalid opaque");
252 ioport_opaque
[i
] = opaque
;
257 void isa_unassign_ioport(int start
, int length
)
261 for(i
= start
; i
< start
+ length
; i
++) {
262 ioport_read_table
[0][i
] = default_ioport_readb
;
263 ioport_read_table
[1][i
] = default_ioport_readw
;
264 ioport_read_table
[2][i
] = default_ioport_readl
;
266 ioport_write_table
[0][i
] = default_ioport_writeb
;
267 ioport_write_table
[1][i
] = default_ioport_writew
;
268 ioport_write_table
[2][i
] = default_ioport_writel
;
272 void pstrcpy(char *buf
, int buf_size
, const char *str
)
282 if (c
== 0 || q
>= buf
+ buf_size
- 1)
289 /* strcat and truncate. */
290 char *pstrcat(char *buf
, int buf_size
, const char *s
)
295 pstrcpy(buf
+ len
, buf_size
- len
, s
);
299 /* return the size or -1 if error */
300 int get_image_size(const char *filename
)
303 fd
= open(filename
, O_RDONLY
| O_BINARY
);
306 size
= lseek(fd
, 0, SEEK_END
);
311 /* return the size or -1 if error */
312 int load_image(const char *filename
, uint8_t *addr
)
315 fd
= open(filename
, O_RDONLY
| O_BINARY
);
318 size
= lseek(fd
, 0, SEEK_END
);
319 lseek(fd
, 0, SEEK_SET
);
320 if (read(fd
, addr
, size
) != size
) {
328 void cpu_outb(CPUState
*env
, int addr
, int val
)
331 if (loglevel
& CPU_LOG_IOPORT
)
332 fprintf(logfile
, "outb: %04x %02x\n", addr
, val
);
334 ioport_write_table
[0][addr
](ioport_opaque
[addr
], addr
, val
);
337 void cpu_outw(CPUState
*env
, int addr
, int val
)
340 if (loglevel
& CPU_LOG_IOPORT
)
341 fprintf(logfile
, "outw: %04x %04x\n", addr
, val
);
343 ioport_write_table
[1][addr
](ioport_opaque
[addr
], addr
, val
);
346 void cpu_outl(CPUState
*env
, int addr
, int val
)
349 if (loglevel
& CPU_LOG_IOPORT
)
350 fprintf(logfile
, "outl: %04x %08x\n", addr
, val
);
352 ioport_write_table
[2][addr
](ioport_opaque
[addr
], addr
, val
);
355 int cpu_inb(CPUState
*env
, int addr
)
358 val
= ioport_read_table
[0][addr
](ioport_opaque
[addr
], addr
);
360 if (loglevel
& CPU_LOG_IOPORT
)
361 fprintf(logfile
, "inb : %04x %02x\n", addr
, val
);
366 int cpu_inw(CPUState
*env
, int addr
)
369 val
= ioport_read_table
[1][addr
](ioport_opaque
[addr
], addr
);
371 if (loglevel
& CPU_LOG_IOPORT
)
372 fprintf(logfile
, "inw : %04x %04x\n", addr
, val
);
377 int cpu_inl(CPUState
*env
, int addr
)
380 val
= ioport_read_table
[2][addr
](ioport_opaque
[addr
], addr
);
382 if (loglevel
& CPU_LOG_IOPORT
)
383 fprintf(logfile
, "inl : %04x %08x\n", addr
, val
);
388 /***********************************************************/
389 void hw_error(const char *fmt
, ...)
394 fprintf(stderr
, "qemu: hardware error: ");
395 vfprintf(stderr
, fmt
, ap
);
396 fprintf(stderr
, "\n");
398 cpu_x86_dump_state(global_env
, stderr
, X86_DUMP_FPU
| X86_DUMP_CCOP
);
400 cpu_dump_state(global_env
, stderr
, 0);
406 /***********************************************************/
409 static QEMUPutKBDEvent
*qemu_put_kbd_event
;
410 static void *qemu_put_kbd_event_opaque
;
411 static QEMUPutMouseEvent
*qemu_put_mouse_event
;
412 static void *qemu_put_mouse_event_opaque
;
414 void qemu_add_kbd_event_handler(QEMUPutKBDEvent
*func
, void *opaque
)
416 qemu_put_kbd_event_opaque
= opaque
;
417 qemu_put_kbd_event
= func
;
420 void qemu_add_mouse_event_handler(QEMUPutMouseEvent
*func
, void *opaque
)
422 qemu_put_mouse_event_opaque
= opaque
;
423 qemu_put_mouse_event
= func
;
426 void kbd_put_keycode(int keycode
)
428 if (qemu_put_kbd_event
) {
429 qemu_put_kbd_event(qemu_put_kbd_event_opaque
, keycode
);
433 void kbd_mouse_event(int dx
, int dy
, int dz
, int buttons_state
)
435 if (qemu_put_mouse_event
) {
436 qemu_put_mouse_event(qemu_put_mouse_event_opaque
,
437 dx
, dy
, dz
, buttons_state
);
441 /***********************************************************/
444 #if defined(__powerpc__)
446 static inline uint32_t get_tbl(void)
449 asm volatile("mftb %0" : "=r" (tbl
));
453 static inline uint32_t get_tbu(void)
456 asm volatile("mftbu %0" : "=r" (tbl
));
460 int64_t cpu_get_real_ticks(void)
463 /* NOTE: we test if wrapping has occurred */
469 return ((int64_t)h
<< 32) | l
;
472 #elif defined(__i386__)
474 int64_t cpu_get_real_ticks(void)
477 asm volatile ("rdtsc" : "=A" (val
));
481 #elif defined(__x86_64__)
483 int64_t cpu_get_real_ticks(void)
487 asm volatile("rdtsc" : "=a" (low
), "=d" (high
));
495 #error unsupported CPU
498 static int64_t cpu_ticks_offset
;
499 static int cpu_ticks_enabled
;
501 static inline int64_t cpu_get_ticks(void)
503 if (!cpu_ticks_enabled
) {
504 return cpu_ticks_offset
;
506 return cpu_get_real_ticks() + cpu_ticks_offset
;
510 /* enable cpu_get_ticks() */
511 void cpu_enable_ticks(void)
513 if (!cpu_ticks_enabled
) {
514 cpu_ticks_offset
-= cpu_get_real_ticks();
515 cpu_ticks_enabled
= 1;
519 /* disable cpu_get_ticks() : the clock is stopped. You must not call
520 cpu_get_ticks() after that. */
521 void cpu_disable_ticks(void)
523 if (cpu_ticks_enabled
) {
524 cpu_ticks_offset
= cpu_get_ticks();
525 cpu_ticks_enabled
= 0;
529 static int64_t get_clock(void)
534 return ((int64_t)tb
.time
* 1000 + (int64_t)tb
.millitm
) * 1000;
537 gettimeofday(&tv
, NULL
);
538 return tv
.tv_sec
* 1000000LL + tv
.tv_usec
;
542 void cpu_calibrate_ticks(void)
547 ticks
= cpu_get_real_ticks();
553 usec
= get_clock() - usec
;
554 ticks
= cpu_get_real_ticks() - ticks
;
555 ticks_per_sec
= (ticks
* 1000000LL + (usec
>> 1)) / usec
;
558 /* compute with 96 bit intermediate result: (a*b)/c */
559 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
564 #ifdef WORDS_BIGENDIAN
574 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
575 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
578 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
582 #define QEMU_TIMER_REALTIME 0
583 #define QEMU_TIMER_VIRTUAL 1
587 /* XXX: add frequency */
595 struct QEMUTimer
*next
;
601 static QEMUTimer
*active_timers
[2];
603 static MMRESULT timerID
;
605 /* frequency of the times() clock tick */
606 static int timer_freq
;
609 QEMUClock
*qemu_new_clock(int type
)
612 clock
= qemu_mallocz(sizeof(QEMUClock
));
619 QEMUTimer
*qemu_new_timer(QEMUClock
*clock
, QEMUTimerCB
*cb
, void *opaque
)
623 ts
= qemu_mallocz(sizeof(QEMUTimer
));
630 void qemu_free_timer(QEMUTimer
*ts
)
635 /* stop a timer, but do not dealloc it */
636 void qemu_del_timer(QEMUTimer
*ts
)
640 /* NOTE: this code must be signal safe because
641 qemu_timer_expired() can be called from a signal. */
642 pt
= &active_timers
[ts
->clock
->type
];
655 /* modify the current timer so that it will be fired when current_time
656 >= expire_time. The corresponding callback will be called. */
657 void qemu_mod_timer(QEMUTimer
*ts
, int64_t expire_time
)
663 /* add the timer in the sorted list */
664 /* NOTE: this code must be signal safe because
665 qemu_timer_expired() can be called from a signal. */
666 pt
= &active_timers
[ts
->clock
->type
];
671 if (t
->expire_time
> expire_time
)
675 ts
->expire_time
= expire_time
;
680 int qemu_timer_pending(QEMUTimer
*ts
)
683 for(t
= active_timers
[ts
->clock
->type
]; t
!= NULL
; t
= t
->next
) {
690 static inline int qemu_timer_expired(QEMUTimer
*timer_head
, int64_t current_time
)
694 return (timer_head
->expire_time
<= current_time
);
697 static void qemu_run_timers(QEMUTimer
**ptimer_head
, int64_t current_time
)
703 if (ts
->expire_time
> current_time
)
705 /* remove timer from the list before calling the callback */
706 *ptimer_head
= ts
->next
;
709 /* run the callback (the timer list can be modified) */
714 int64_t qemu_get_clock(QEMUClock
*clock
)
716 switch(clock
->type
) {
717 case QEMU_TIMER_REALTIME
:
719 return GetTickCount();
724 /* Note that using gettimeofday() is not a good solution
725 for timers because its value change when the date is
727 if (timer_freq
== 100) {
728 return times(&tp
) * 10;
730 return ((int64_t)times(&tp
) * 1000) / timer_freq
;
735 case QEMU_TIMER_VIRTUAL
:
736 return cpu_get_ticks();
741 void qemu_put_timer(QEMUFile
*f
, QEMUTimer
*ts
)
743 uint64_t expire_time
;
745 if (qemu_timer_pending(ts
)) {
746 expire_time
= ts
->expire_time
;
750 qemu_put_be64(f
, expire_time
);
753 void qemu_get_timer(QEMUFile
*f
, QEMUTimer
*ts
)
755 uint64_t expire_time
;
757 expire_time
= qemu_get_be64(f
);
758 if (expire_time
!= -1) {
759 qemu_mod_timer(ts
, expire_time
);
765 static void timer_save(QEMUFile
*f
, void *opaque
)
767 if (cpu_ticks_enabled
) {
768 hw_error("cannot save state if virtual timers are running");
770 qemu_put_be64s(f
, &cpu_ticks_offset
);
771 qemu_put_be64s(f
, &ticks_per_sec
);
774 static int timer_load(QEMUFile
*f
, void *opaque
, int version_id
)
778 if (cpu_ticks_enabled
) {
781 qemu_get_be64s(f
, &cpu_ticks_offset
);
782 qemu_get_be64s(f
, &ticks_per_sec
);
787 void CALLBACK
host_alarm_handler(UINT uTimerID
, UINT uMsg
,
788 DWORD_PTR dwUser
, DWORD_PTR dw1
, DWORD_PTR dw2
)
790 static void host_alarm_handler(int host_signum
)
794 #define DISP_FREQ 1000
796 static int64_t delta_min
= INT64_MAX
;
797 static int64_t delta_max
, delta_cum
, last_clock
, delta
, ti
;
799 ti
= qemu_get_clock(vm_clock
);
800 if (last_clock
!= 0) {
801 delta
= ti
- last_clock
;
802 if (delta
< delta_min
)
804 if (delta
> delta_max
)
807 if (++count
== DISP_FREQ
) {
808 printf("timer: min=%lld us max=%lld us avg=%lld us avg_freq=%0.3f Hz\n",
809 muldiv64(delta_min
, 1000000, ticks_per_sec
),
810 muldiv64(delta_max
, 1000000, ticks_per_sec
),
811 muldiv64(delta_cum
, 1000000 / DISP_FREQ
, ticks_per_sec
),
812 (double)ticks_per_sec
/ ((double)delta_cum
/ DISP_FREQ
));
814 delta_min
= INT64_MAX
;
822 if (qemu_timer_expired(active_timers
[QEMU_TIMER_VIRTUAL
],
823 qemu_get_clock(vm_clock
)) ||
824 qemu_timer_expired(active_timers
[QEMU_TIMER_REALTIME
],
825 qemu_get_clock(rt_clock
))) {
826 /* stop the cpu because a timer occured */
827 cpu_interrupt(global_env
, CPU_INTERRUPT_EXIT
);
833 #if defined(__linux__)
835 #define RTC_FREQ 1024
839 static int start_rtc_timer(void)
841 rtc_fd
= open("/dev/rtc", O_RDONLY
);
844 if (ioctl(rtc_fd
, RTC_IRQP_SET
, RTC_FREQ
) < 0) {
845 fprintf(stderr
, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
846 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
847 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
850 if (ioctl(rtc_fd
, RTC_PIE_ON
, 0) < 0) {
855 pit_min_timer_count
= PIT_FREQ
/ RTC_FREQ
;
861 static int start_rtc_timer(void)
866 #endif /* !defined(__linux__) */
868 #endif /* !defined(_WIN32) */
870 static void init_timers(void)
872 rt_clock
= qemu_new_clock(QEMU_TIMER_REALTIME
);
873 vm_clock
= qemu_new_clock(QEMU_TIMER_VIRTUAL
);
878 timerID
= timeSetEvent(10, // interval (ms)
880 host_alarm_handler
, // function
881 (DWORD
)&count
, // user parameter
882 TIME_PERIODIC
| TIME_CALLBACK_FUNCTION
);
884 perror("failed timer alarm");
888 pit_min_timer_count
= ((uint64_t)10000 * PIT_FREQ
) / 1000000;
891 struct sigaction act
;
892 struct itimerval itv
;
894 /* get times() syscall frequency */
895 timer_freq
= sysconf(_SC_CLK_TCK
);
898 sigfillset(&act
.sa_mask
);
900 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
901 act
.sa_flags
|= SA_ONSTACK
;
903 act
.sa_handler
= host_alarm_handler
;
904 sigaction(SIGALRM
, &act
, NULL
);
906 itv
.it_interval
.tv_sec
= 0;
907 itv
.it_interval
.tv_usec
= 1000;
908 itv
.it_value
.tv_sec
= 0;
909 itv
.it_value
.tv_usec
= 10 * 1000;
910 setitimer(ITIMER_REAL
, &itv
, NULL
);
911 /* we probe the tick duration of the kernel to inform the user if
912 the emulated kernel requested a too high timer frequency */
913 getitimer(ITIMER_REAL
, &itv
);
915 #if defined(__linux__)
916 if (itv
.it_interval
.tv_usec
> 1000) {
917 /* try to use /dev/rtc to have a faster timer */
918 if (start_rtc_timer() < 0)
921 itv
.it_interval
.tv_sec
= 0;
922 itv
.it_interval
.tv_usec
= 0;
923 itv
.it_value
.tv_sec
= 0;
924 itv
.it_value
.tv_usec
= 0;
925 setitimer(ITIMER_REAL
, &itv
, NULL
);
928 sigaction(SIGIO
, &act
, NULL
);
929 fcntl(rtc_fd
, F_SETFL
, O_ASYNC
);
930 fcntl(rtc_fd
, F_SETOWN
, getpid());
932 #endif /* defined(__linux__) */
935 pit_min_timer_count
= ((uint64_t)itv
.it_interval
.tv_usec
*
942 void quit_timers(void)
945 timeKillEvent(timerID
);
949 /***********************************************************/
954 int serial_open_device(void)
961 int serial_open_device(void)
963 char slave_name
[1024];
964 int master_fd
, slave_fd
;
966 if (serial_console
== NULL
&& nographic
) {
967 /* use console for serial port */
972 if (openpty(&master_fd
, &slave_fd
, slave_name
, NULL
, NULL
) < 0) {
973 fprintf(stderr
, "warning: could not create pseudo terminal for serial port\n");
976 fprintf(stderr
, "Serial port redirected to %s\n", slave_name
);
986 /***********************************************************/
987 /* Linux network device redirectors */
989 void hex_dump(FILE *f
, const uint8_t *buf
, int size
)
993 for(i
=0;i
<size
;i
+=16) {
997 fprintf(f
, "%08x ", i
);
1000 fprintf(f
, " %02x", buf
[i
+j
]);
1005 for(j
=0;j
<len
;j
++) {
1007 if (c
< ' ' || c
> '~')
1009 fprintf(f
, "%c", c
);
1015 void qemu_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
1017 nd
->send_packet(nd
, buf
, size
);
1020 void qemu_add_read_packet(NetDriverState
*nd
, IOCanRWHandler
*fd_can_read
,
1021 IOReadHandler
*fd_read
, void *opaque
)
1023 nd
->add_read_packet(nd
, fd_can_read
, fd_read
, opaque
);
1026 /* dummy network adapter */
1028 static void dummy_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
1032 static void dummy_add_read_packet(NetDriverState
*nd
,
1033 IOCanRWHandler
*fd_can_read
,
1034 IOReadHandler
*fd_read
, void *opaque
)
1038 static int net_dummy_init(NetDriverState
*nd
)
1040 nd
->send_packet
= dummy_send_packet
;
1041 nd
->add_read_packet
= dummy_add_read_packet
;
1042 pstrcpy(nd
->ifname
, sizeof(nd
->ifname
), "dummy");
1046 #if defined(CONFIG_SLIRP)
1048 /* slirp network adapter */
1050 static void *slirp_fd_opaque
;
1051 static IOCanRWHandler
*slirp_fd_can_read
;
1052 static IOReadHandler
*slirp_fd_read
;
1053 static int slirp_inited
;
1055 int slirp_can_output(void)
1057 return slirp_fd_can_read(slirp_fd_opaque
);
1060 void slirp_output(const uint8_t *pkt
, int pkt_len
)
1063 printf("output:\n");
1064 hex_dump(stdout
, pkt
, pkt_len
);
1066 slirp_fd_read(slirp_fd_opaque
, pkt
, pkt_len
);
1069 static void slirp_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
1073 hex_dump(stdout
, buf
, size
);
1075 slirp_input(buf
, size
);
1078 static void slirp_add_read_packet(NetDriverState
*nd
,
1079 IOCanRWHandler
*fd_can_read
,
1080 IOReadHandler
*fd_read
, void *opaque
)
1082 slirp_fd_opaque
= opaque
;
1083 slirp_fd_can_read
= fd_can_read
;
1084 slirp_fd_read
= fd_read
;
1087 static int net_slirp_init(NetDriverState
*nd
)
1089 if (!slirp_inited
) {
1093 nd
->send_packet
= slirp_send_packet
;
1094 nd
->add_read_packet
= slirp_add_read_packet
;
1095 pstrcpy(nd
->ifname
, sizeof(nd
->ifname
), "slirp");
1099 #endif /* CONFIG_SLIRP */
1101 #if !defined(_WIN32)
1103 static int tun_open(char *ifname
, int ifname_size
)
1109 fd
= open("/dev/tap", O_RDWR
);
1111 fprintf(stderr
, "warning: could not open /dev/tap: no virtual network emulation\n");
1116 dev
= devname(s
.st_rdev
, S_IFCHR
);
1117 pstrcpy(ifname
, ifname_size
, dev
);
1119 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1123 static int tun_open(char *ifname
, int ifname_size
)
1128 fd
= open("/dev/net/tun", O_RDWR
);
1130 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
1133 memset(&ifr
, 0, sizeof(ifr
));
1134 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
1135 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tun%d");
1136 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
1138 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
1142 printf("Connected to host network interface: %s\n", ifr
.ifr_name
);
1143 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
1144 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
1149 static void tun_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
1151 write(nd
->fd
, buf
, size
);
1154 static void tun_add_read_packet(NetDriverState
*nd
,
1155 IOCanRWHandler
*fd_can_read
,
1156 IOReadHandler
*fd_read
, void *opaque
)
1158 qemu_add_fd_read_handler(nd
->fd
, fd_can_read
, fd_read
, opaque
);
1161 static int net_tun_init(NetDriverState
*nd
)
1167 nd
->fd
= tun_open(nd
->ifname
, sizeof(nd
->ifname
));
1171 /* try to launch network init script */
1176 *parg
++ = network_script
;
1177 *parg
++ = nd
->ifname
;
1179 execv(network_script
, args
);
1182 while (waitpid(pid
, &status
, 0) != pid
);
1183 if (!WIFEXITED(status
) ||
1184 WEXITSTATUS(status
) != 0) {
1185 fprintf(stderr
, "%s: could not launch network script\n",
1189 nd
->send_packet
= tun_send_packet
;
1190 nd
->add_read_packet
= tun_add_read_packet
;
1194 static int net_fd_init(NetDriverState
*nd
, int fd
)
1197 nd
->send_packet
= tun_send_packet
;
1198 nd
->add_read_packet
= tun_add_read_packet
;
1199 pstrcpy(nd
->ifname
, sizeof(nd
->ifname
), "tunfd");
1203 #endif /* !_WIN32 */
1205 /***********************************************************/
1210 static void term_exit(void)
1214 static void term_init(void)
1220 /* init terminal so that we can grab keys */
1221 static struct termios oldtty
;
1222 static int old_fd0_flags
;
1224 static void term_exit(void)
1226 tcsetattr (0, TCSANOW
, &oldtty
);
1227 fcntl(0, F_SETFL
, old_fd0_flags
);
1230 static void term_init(void)
1234 tcgetattr (0, &tty
);
1236 old_fd0_flags
= fcntl(0, F_GETFL
);
1238 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
1239 |INLCR
|IGNCR
|ICRNL
|IXON
);
1240 tty
.c_oflag
|= OPOST
;
1241 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
1242 /* if graphical mode, we allow Ctrl-C handling */
1244 tty
.c_lflag
&= ~ISIG
;
1245 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
1248 tty
.c_cc
[VTIME
] = 0;
1250 tcsetattr (0, TCSANOW
, &tty
);
1254 fcntl(0, F_SETFL
, O_NONBLOCK
);
1259 static void dumb_update(DisplayState
*ds
, int x
, int y
, int w
, int h
)
1263 static void dumb_resize(DisplayState
*ds
, int w
, int h
)
1267 static void dumb_refresh(DisplayState
*ds
)
1269 vga_update_display();
1272 void dumb_display_init(DisplayState
*ds
)
1277 ds
->dpy_update
= dumb_update
;
1278 ds
->dpy_resize
= dumb_resize
;
1279 ds
->dpy_refresh
= dumb_refresh
;
1282 #if !defined(CONFIG_SOFTMMU)
1283 /***********************************************************/
1284 /* cpu signal handler */
1285 static void host_segv_handler(int host_signum
, siginfo_t
*info
,
1288 if (cpu_signal_handler(host_signum
, info
, puc
))
1295 /***********************************************************/
1298 #define MAX_IO_HANDLERS 64
1300 typedef struct IOHandlerRecord
{
1302 IOCanRWHandler
*fd_can_read
;
1303 IOReadHandler
*fd_read
;
1305 /* temporary data */
1308 struct IOHandlerRecord
*next
;
1311 static IOHandlerRecord
*first_io_handler
;
1313 int qemu_add_fd_read_handler(int fd
, IOCanRWHandler
*fd_can_read
,
1314 IOReadHandler
*fd_read
, void *opaque
)
1316 IOHandlerRecord
*ioh
;
1318 ioh
= qemu_mallocz(sizeof(IOHandlerRecord
));
1322 ioh
->fd_can_read
= fd_can_read
;
1323 ioh
->fd_read
= fd_read
;
1324 ioh
->opaque
= opaque
;
1325 ioh
->next
= first_io_handler
;
1326 first_io_handler
= ioh
;
1330 void qemu_del_fd_read_handler(int fd
)
1332 IOHandlerRecord
**pioh
, *ioh
;
1334 pioh
= &first_io_handler
;
1339 if (ioh
->fd
== fd
) {
1347 /***********************************************************/
1348 /* savevm/loadvm support */
1350 void qemu_put_buffer(QEMUFile
*f
, const uint8_t *buf
, int size
)
1352 fwrite(buf
, 1, size
, f
);
1355 void qemu_put_byte(QEMUFile
*f
, int v
)
1360 void qemu_put_be16(QEMUFile
*f
, unsigned int v
)
1362 qemu_put_byte(f
, v
>> 8);
1363 qemu_put_byte(f
, v
);
1366 void qemu_put_be32(QEMUFile
*f
, unsigned int v
)
1368 qemu_put_byte(f
, v
>> 24);
1369 qemu_put_byte(f
, v
>> 16);
1370 qemu_put_byte(f
, v
>> 8);
1371 qemu_put_byte(f
, v
);
1374 void qemu_put_be64(QEMUFile
*f
, uint64_t v
)
1376 qemu_put_be32(f
, v
>> 32);
1377 qemu_put_be32(f
, v
);
1380 int qemu_get_buffer(QEMUFile
*f
, uint8_t *buf
, int size
)
1382 return fread(buf
, 1, size
, f
);
1385 int qemu_get_byte(QEMUFile
*f
)
1395 unsigned int qemu_get_be16(QEMUFile
*f
)
1398 v
= qemu_get_byte(f
) << 8;
1399 v
|= qemu_get_byte(f
);
1403 unsigned int qemu_get_be32(QEMUFile
*f
)
1406 v
= qemu_get_byte(f
) << 24;
1407 v
|= qemu_get_byte(f
) << 16;
1408 v
|= qemu_get_byte(f
) << 8;
1409 v
|= qemu_get_byte(f
);
1413 uint64_t qemu_get_be64(QEMUFile
*f
)
1416 v
= (uint64_t)qemu_get_be32(f
) << 32;
1417 v
|= qemu_get_be32(f
);
1421 int64_t qemu_ftell(QEMUFile
*f
)
1426 int64_t qemu_fseek(QEMUFile
*f
, int64_t pos
, int whence
)
1428 if (fseek(f
, pos
, whence
) < 0)
1433 typedef struct SaveStateEntry
{
1437 SaveStateHandler
*save_state
;
1438 LoadStateHandler
*load_state
;
1440 struct SaveStateEntry
*next
;
1443 static SaveStateEntry
*first_se
;
1445 int register_savevm(const char *idstr
,
1448 SaveStateHandler
*save_state
,
1449 LoadStateHandler
*load_state
,
1452 SaveStateEntry
*se
, **pse
;
1454 se
= qemu_malloc(sizeof(SaveStateEntry
));
1457 pstrcpy(se
->idstr
, sizeof(se
->idstr
), idstr
);
1458 se
->instance_id
= instance_id
;
1459 se
->version_id
= version_id
;
1460 se
->save_state
= save_state
;
1461 se
->load_state
= load_state
;
1462 se
->opaque
= opaque
;
1465 /* add at the end of list */
1467 while (*pse
!= NULL
)
1468 pse
= &(*pse
)->next
;
1473 #define QEMU_VM_FILE_MAGIC 0x5145564d
1474 #define QEMU_VM_FILE_VERSION 0x00000001
1476 int qemu_savevm(const char *filename
)
1480 int len
, len_pos
, cur_pos
, saved_vm_running
, ret
;
1482 saved_vm_running
= vm_running
;
1485 f
= fopen(filename
, "wb");
1491 qemu_put_be32(f
, QEMU_VM_FILE_MAGIC
);
1492 qemu_put_be32(f
, QEMU_VM_FILE_VERSION
);
1494 for(se
= first_se
; se
!= NULL
; se
= se
->next
) {
1496 len
= strlen(se
->idstr
);
1497 qemu_put_byte(f
, len
);
1498 qemu_put_buffer(f
, se
->idstr
, len
);
1500 qemu_put_be32(f
, se
->instance_id
);
1501 qemu_put_be32(f
, se
->version_id
);
1503 /* record size: filled later */
1505 qemu_put_be32(f
, 0);
1507 se
->save_state(f
, se
->opaque
);
1509 /* fill record size */
1511 len
= ftell(f
) - len_pos
- 4;
1512 fseek(f
, len_pos
, SEEK_SET
);
1513 qemu_put_be32(f
, len
);
1514 fseek(f
, cur_pos
, SEEK_SET
);
1520 if (saved_vm_running
)
1525 static SaveStateEntry
*find_se(const char *idstr
, int instance_id
)
1529 for(se
= first_se
; se
!= NULL
; se
= se
->next
) {
1530 if (!strcmp(se
->idstr
, idstr
) &&
1531 instance_id
== se
->instance_id
)
1537 int qemu_loadvm(const char *filename
)
1541 int len
, cur_pos
, ret
, instance_id
, record_len
, version_id
;
1542 int saved_vm_running
;
1546 saved_vm_running
= vm_running
;
1549 f
= fopen(filename
, "rb");
1555 v
= qemu_get_be32(f
);
1556 if (v
!= QEMU_VM_FILE_MAGIC
)
1558 v
= qemu_get_be32(f
);
1559 if (v
!= QEMU_VM_FILE_VERSION
) {
1566 #if defined (DO_TB_FLUSH)
1567 tb_flush(global_env
);
1569 len
= qemu_get_byte(f
);
1572 qemu_get_buffer(f
, idstr
, len
);
1574 instance_id
= qemu_get_be32(f
);
1575 version_id
= qemu_get_be32(f
);
1576 record_len
= qemu_get_be32(f
);
1578 printf("idstr=%s instance=0x%x version=%d len=%d\n",
1579 idstr
, instance_id
, version_id
, record_len
);
1582 se
= find_se(idstr
, instance_id
);
1584 fprintf(stderr
, "qemu: warning: instance 0x%x of device '%s' not present in current VM\n",
1585 instance_id
, idstr
);
1587 ret
= se
->load_state(f
, se
->opaque
, version_id
);
1589 fprintf(stderr
, "qemu: warning: error while loading state for instance 0x%x of device '%s'\n",
1590 instance_id
, idstr
);
1593 /* always seek to exact end of record */
1594 qemu_fseek(f
, cur_pos
+ record_len
, SEEK_SET
);
1599 if (saved_vm_running
)
1604 /***********************************************************/
1605 /* cpu save/restore */
1607 #if defined(TARGET_I386)
1609 static void cpu_put_seg(QEMUFile
*f
, SegmentCache
*dt
)
1611 qemu_put_be32(f
, dt
->selector
);
1612 qemu_put_be32(f
, (uint32_t)dt
->base
);
1613 qemu_put_be32(f
, dt
->limit
);
1614 qemu_put_be32(f
, dt
->flags
);
1617 static void cpu_get_seg(QEMUFile
*f
, SegmentCache
*dt
)
1619 dt
->selector
= qemu_get_be32(f
);
1620 dt
->base
= (uint8_t *)qemu_get_be32(f
);
1621 dt
->limit
= qemu_get_be32(f
);
1622 dt
->flags
= qemu_get_be32(f
);
1625 void cpu_save(QEMUFile
*f
, void *opaque
)
1627 CPUState
*env
= opaque
;
1628 uint16_t fptag
, fpus
, fpuc
;
1632 for(i
= 0; i
< 8; i
++)
1633 qemu_put_be32s(f
, &env
->regs
[i
]);
1634 qemu_put_be32s(f
, &env
->eip
);
1635 qemu_put_be32s(f
, &env
->eflags
);
1636 qemu_put_be32s(f
, &env
->eflags
);
1637 hflags
= env
->hflags
; /* XXX: suppress most of the redundant hflags */
1638 qemu_put_be32s(f
, &hflags
);
1642 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1644 for (i
=7; i
>=0; i
--) {
1646 if (env
->fptags
[i
]) {
1651 qemu_put_be16s(f
, &fpuc
);
1652 qemu_put_be16s(f
, &fpus
);
1653 qemu_put_be16s(f
, &fptag
);
1655 for(i
= 0; i
< 8; i
++) {
1658 cpu_get_fp80(&mant
, &exp
, env
->fpregs
[i
]);
1659 qemu_put_be64(f
, mant
);
1660 qemu_put_be16(f
, exp
);
1663 for(i
= 0; i
< 6; i
++)
1664 cpu_put_seg(f
, &env
->segs
[i
]);
1665 cpu_put_seg(f
, &env
->ldt
);
1666 cpu_put_seg(f
, &env
->tr
);
1667 cpu_put_seg(f
, &env
->gdt
);
1668 cpu_put_seg(f
, &env
->idt
);
1670 qemu_put_be32s(f
, &env
->sysenter_cs
);
1671 qemu_put_be32s(f
, &env
->sysenter_esp
);
1672 qemu_put_be32s(f
, &env
->sysenter_eip
);
1674 qemu_put_be32s(f
, &env
->cr
[0]);
1675 qemu_put_be32s(f
, &env
->cr
[2]);
1676 qemu_put_be32s(f
, &env
->cr
[3]);
1677 qemu_put_be32s(f
, &env
->cr
[4]);
1679 for(i
= 0; i
< 8; i
++)
1680 qemu_put_be32s(f
, &env
->dr
[i
]);
1683 qemu_put_be32s(f
, &env
->a20_mask
);
1686 int cpu_load(QEMUFile
*f
, void *opaque
, int version_id
)
1688 CPUState
*env
= opaque
;
1691 uint16_t fpus
, fpuc
, fptag
;
1693 if (version_id
!= 2)
1695 for(i
= 0; i
< 8; i
++)
1696 qemu_get_be32s(f
, &env
->regs
[i
]);
1697 qemu_get_be32s(f
, &env
->eip
);
1698 qemu_get_be32s(f
, &env
->eflags
);
1699 qemu_get_be32s(f
, &env
->eflags
);
1700 qemu_get_be32s(f
, &hflags
);
1702 qemu_get_be16s(f
, &fpuc
);
1703 qemu_get_be16s(f
, &fpus
);
1704 qemu_get_be16s(f
, &fptag
);
1706 for(i
= 0; i
< 8; i
++) {
1709 mant
= qemu_get_be64(f
);
1710 exp
= qemu_get_be16(f
);
1711 env
->fpregs
[i
] = cpu_set_fp80(mant
, exp
);
1715 env
->fpstt
= (fpus
>> 11) & 7;
1716 env
->fpus
= fpus
& ~0x3800;
1717 for(i
= 0; i
< 8; i
++) {
1718 env
->fptags
[i
] = ((fptag
& 3) == 3);
1722 for(i
= 0; i
< 6; i
++)
1723 cpu_get_seg(f
, &env
->segs
[i
]);
1724 cpu_get_seg(f
, &env
->ldt
);
1725 cpu_get_seg(f
, &env
->tr
);
1726 cpu_get_seg(f
, &env
->gdt
);
1727 cpu_get_seg(f
, &env
->idt
);
1729 qemu_get_be32s(f
, &env
->sysenter_cs
);
1730 qemu_get_be32s(f
, &env
->sysenter_esp
);
1731 qemu_get_be32s(f
, &env
->sysenter_eip
);
1733 qemu_get_be32s(f
, &env
->cr
[0]);
1734 qemu_get_be32s(f
, &env
->cr
[2]);
1735 qemu_get_be32s(f
, &env
->cr
[3]);
1736 qemu_get_be32s(f
, &env
->cr
[4]);
1738 for(i
= 0; i
< 8; i
++)
1739 qemu_get_be32s(f
, &env
->dr
[i
]);
1742 qemu_get_be32s(f
, &env
->a20_mask
);
1744 /* XXX: compute hflags from scratch, except for CPL and IIF */
1745 env
->hflags
= hflags
;
1750 #elif defined(TARGET_PPC)
1751 void cpu_save(QEMUFile
*f
, void *opaque
)
1755 int cpu_load(QEMUFile
*f
, void *opaque
, int version_id
)
1761 #warning No CPU save/restore functions
1765 /***********************************************************/
1766 /* ram save/restore */
1768 /* we just avoid storing empty pages */
1769 static void ram_put_page(QEMUFile
*f
, const uint8_t *buf
, int len
)
1774 for(i
= 1; i
< len
; i
++) {
1778 qemu_put_byte(f
, 1);
1779 qemu_put_byte(f
, v
);
1782 qemu_put_byte(f
, 0);
1783 qemu_put_buffer(f
, buf
, len
);
1786 static int ram_get_page(QEMUFile
*f
, uint8_t *buf
, int len
)
1790 v
= qemu_get_byte(f
);
1793 if (qemu_get_buffer(f
, buf
, len
) != len
)
1797 v
= qemu_get_byte(f
);
1798 memset(buf
, v
, len
);
1806 static void ram_save(QEMUFile
*f
, void *opaque
)
1809 qemu_put_be32(f
, phys_ram_size
);
1810 for(i
= 0; i
< phys_ram_size
; i
+= TARGET_PAGE_SIZE
) {
1811 ram_put_page(f
, phys_ram_base
+ i
, TARGET_PAGE_SIZE
);
1815 static int ram_load(QEMUFile
*f
, void *opaque
, int version_id
)
1819 if (version_id
!= 1)
1821 if (qemu_get_be32(f
) != phys_ram_size
)
1823 for(i
= 0; i
< phys_ram_size
; i
+= TARGET_PAGE_SIZE
) {
1824 ret
= ram_get_page(f
, phys_ram_base
+ i
, TARGET_PAGE_SIZE
);
1831 /***********************************************************/
1832 /* main execution loop */
1834 void gui_update(void *opaque
)
1836 display_state
.dpy_refresh(&display_state
);
1837 qemu_mod_timer(gui_timer
, GUI_REFRESH_INTERVAL
+ qemu_get_clock(rt_clock
));
1840 /* XXX: support several handlers */
1841 VMStopHandler
*vm_stop_cb
;
1842 VMStopHandler
*vm_stop_opaque
;
1844 int qemu_add_vm_stop_handler(VMStopHandler
*cb
, void *opaque
)
1847 vm_stop_opaque
= opaque
;
1851 void qemu_del_vm_stop_handler(VMStopHandler
*cb
, void *opaque
)
1864 void vm_stop(int reason
)
1867 cpu_disable_ticks();
1871 vm_stop_cb(vm_stop_opaque
, reason
);
1877 /* reset/shutdown handler */
1879 typedef struct QEMUResetEntry
{
1880 QEMUResetHandler
*func
;
1882 struct QEMUResetEntry
*next
;
1885 static QEMUResetEntry
*first_reset_entry
;
1886 static int reset_requested
;
1887 static int shutdown_requested
;
1889 void qemu_register_reset(QEMUResetHandler
*func
, void *opaque
)
1891 QEMUResetEntry
**pre
, *re
;
1893 pre
= &first_reset_entry
;
1894 while (*pre
!= NULL
)
1895 pre
= &(*pre
)->next
;
1896 re
= qemu_mallocz(sizeof(QEMUResetEntry
));
1898 re
->opaque
= opaque
;
1903 void qemu_system_reset(void)
1907 /* reset all devices */
1908 for(re
= first_reset_entry
; re
!= NULL
; re
= re
->next
) {
1909 re
->func(re
->opaque
);
1913 void qemu_system_reset_request(void)
1915 reset_requested
= 1;
1916 cpu_interrupt(cpu_single_env
, CPU_INTERRUPT_EXIT
);
1919 void qemu_system_shutdown_request(void)
1921 shutdown_requested
= 1;
1922 cpu_interrupt(cpu_single_env
, CPU_INTERRUPT_EXIT
);
1925 static void main_cpu_reset(void *opaque
)
1928 CPUState
*env
= opaque
;
1936 struct pollfd ufds
[MAX_IO_HANDLERS
+ 1], *pf
;
1937 IOHandlerRecord
*ioh
, *ioh_next
;
1942 CPUState
*env
= global_env
;
1946 ret
= cpu_exec(env
);
1947 if (shutdown_requested
) {
1948 ret
= EXCP_INTERRUPT
;
1951 if (reset_requested
) {
1952 reset_requested
= 0;
1953 qemu_system_reset();
1954 ret
= EXCP_INTERRUPT
;
1956 if (ret
== EXCP_DEBUG
) {
1957 vm_stop(EXCP_DEBUG
);
1959 /* if hlt instruction, we wait until the next IRQ */
1960 /* XXX: use timeout computed from timers */
1961 if (ret
== EXCP_HLT
)
1974 /* poll any events */
1975 /* XXX: separate device handlers from system ones */
1977 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh
->next
) {
1978 if (!ioh
->fd_can_read
) {
1981 pf
->events
= POLLIN
;
1985 max_size
= ioh
->fd_can_read(ioh
->opaque
);
1987 if (max_size
> sizeof(buf
))
1988 max_size
= sizeof(buf
);
1990 pf
->events
= POLLIN
;
1997 ioh
->max_size
= max_size
;
2000 ret
= poll(ufds
, pf
- ufds
, timeout
);
2002 /* XXX: better handling of removal */
2003 for(ioh
= first_io_handler
; ioh
!= NULL
; ioh
= ioh_next
) {
2004 ioh_next
= ioh
->next
;
2007 if (pf
->revents
& POLLIN
) {
2008 if (ioh
->max_size
== 0) {
2009 /* just a read event */
2010 ioh
->fd_read(ioh
->opaque
, NULL
, 0);
2012 n
= read(ioh
->fd
, buf
, ioh
->max_size
);
2014 ioh
->fd_read(ioh
->opaque
, buf
, n
);
2015 } else if (errno
!= EAGAIN
) {
2016 ioh
->fd_read(ioh
->opaque
, NULL
, -errno
);
2024 #if defined(CONFIG_SLIRP)
2025 /* XXX: merge with poll() */
2027 fd_set rfds
, wfds
, xfds
;
2035 slirp_select_fill(&nfds
, &rfds
, &wfds
, &xfds
);
2038 ret
= select(nfds
+ 1, &rfds
, &wfds
, &xfds
, &tv
);
2040 slirp_select_poll(&rfds
, &wfds
, &xfds
);
2048 qemu_run_timers(&active_timers
[QEMU_TIMER_VIRTUAL
],
2049 qemu_get_clock(vm_clock
));
2051 if (audio_enabled
) {
2052 /* XXX: add explicit timer */
2056 /* run dma transfers, if any */
2060 /* real time timers */
2061 qemu_run_timers(&active_timers
[QEMU_TIMER_REALTIME
],
2062 qemu_get_clock(rt_clock
));
2064 cpu_disable_ticks();
2070 printf("QEMU PC emulator version " QEMU_VERSION
", Copyright (c) 2003-2004 Fabrice Bellard\n"
2071 "usage: %s [options] [disk_image]\n"
2073 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
2075 "Standard options:\n"
2076 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
2077 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
2078 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
2079 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
2080 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
2081 "-snapshot write to temporary files instead of disk image files\n"
2082 "-m megs set virtual RAM size to megs MB [default=%d]\n"
2083 "-nographic disable graphical output and redirect serial I/Os to console\n"
2084 "-enable-audio enable audio support\n"
2085 "-localtime set the real time clock to local time [default=utc]\n"
2087 "-prep Simulate a PREP system (default is PowerMAC)\n"
2088 "-g WxH[xDEPTH] Set the initial VGA graphic mode\n"
2091 "Network options:\n"
2092 "-nics n simulate 'n' network cards [default=1]\n"
2093 "-macaddr addr set the mac address of the first interface\n"
2094 "-n script set tap/tun network init script [default=%s]\n"
2095 "-tun-fd fd use this fd as already opened tap/tun interface\n"
2097 "-user-net use user mode network stack [default if no tap/tun script]\n"
2099 "-dummy-net use dummy network stack\n"
2101 "Linux boot specific:\n"
2102 "-kernel bzImage use 'bzImage' as kernel image\n"
2103 "-append cmdline use 'cmdline' as kernel command line\n"
2104 "-initrd file use 'file' as initial ram disk\n"
2106 "Debug/Expert options:\n"
2107 "-S freeze CPU at startup (use 'c' to start execution)\n"
2108 "-s wait gdb connection to port %d\n"
2109 "-p port change gdb connection port\n"
2110 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
2111 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
2112 "-L path set the directory for the BIOS and VGA BIOS\n"
2113 #ifdef USE_CODE_COPY
2114 "-no-code-copy disable code copy acceleration\n"
2117 "-isa simulate an ISA-only system (default is PCI system)\n"
2120 "During emulation, use C-a h to get terminal commands:\n",
2121 #ifdef CONFIG_SOFTMMU
2127 DEFAULT_NETWORK_SCRIPT
,
2128 DEFAULT_GDBSTUB_PORT
,
2131 #ifndef CONFIG_SOFTMMU
2133 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
2134 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
2140 #define HAS_ARG 0x0001
2153 QEMU_OPTION_snapshot
,
2155 QEMU_OPTION_nographic
,
2156 QEMU_OPTION_enable_audio
,
2159 QEMU_OPTION_macaddr
,
2162 QEMU_OPTION_user_net
,
2163 QEMU_OPTION_dummy_net
,
2175 QEMU_OPTION_no_code_copy
,
2179 QEMU_OPTION_localtime
,
2180 QEMU_OPTION_cirrusvga
,
2184 typedef struct QEMUOption
{
2190 const QEMUOption qemu_options
[] = {
2191 { "h", 0, QEMU_OPTION_h
},
2193 { "fda", HAS_ARG
, QEMU_OPTION_fda
},
2194 { "fdb", HAS_ARG
, QEMU_OPTION_fdb
},
2195 { "hda", HAS_ARG
, QEMU_OPTION_hda
},
2196 { "hdb", HAS_ARG
, QEMU_OPTION_hdb
},
2197 { "hdc", HAS_ARG
, QEMU_OPTION_hdc
},
2198 { "hdd", HAS_ARG
, QEMU_OPTION_hdd
},
2199 { "cdrom", HAS_ARG
, QEMU_OPTION_cdrom
},
2200 { "boot", HAS_ARG
, QEMU_OPTION_boot
},
2201 { "snapshot", 0, QEMU_OPTION_snapshot
},
2202 { "m", HAS_ARG
, QEMU_OPTION_m
},
2203 { "nographic", 0, QEMU_OPTION_nographic
},
2204 { "enable-audio", 0, QEMU_OPTION_enable_audio
},
2206 { "nics", HAS_ARG
, QEMU_OPTION_nics
},
2207 { "macaddr", HAS_ARG
, QEMU_OPTION_macaddr
},
2208 { "n", HAS_ARG
, QEMU_OPTION_n
},
2209 { "tun-fd", HAS_ARG
, QEMU_OPTION_tun_fd
},
2211 { "user-net", 0, QEMU_OPTION_user_net
},
2213 { "dummy-net", 0, QEMU_OPTION_dummy_net
},
2215 { "kernel", HAS_ARG
, QEMU_OPTION_kernel
},
2216 { "append", HAS_ARG
, QEMU_OPTION_append
},
2217 { "initrd", HAS_ARG
, QEMU_OPTION_initrd
},
2219 { "S", 0, QEMU_OPTION_S
},
2220 { "s", 0, QEMU_OPTION_s
},
2221 { "p", HAS_ARG
, QEMU_OPTION_p
},
2222 { "d", HAS_ARG
, QEMU_OPTION_d
},
2223 { "hdachs", HAS_ARG
, QEMU_OPTION_hdachs
},
2224 { "L", HAS_ARG
, QEMU_OPTION_L
},
2225 { "no-code-copy", 0, QEMU_OPTION_no_code_copy
},
2227 { "prep", 0, QEMU_OPTION_prep
},
2228 { "g", 1, QEMU_OPTION_g
},
2230 { "localtime", 0, QEMU_OPTION_localtime
},
2231 { "isa", 0, QEMU_OPTION_isa
},
2233 /* temporary options */
2234 { "pci", 0, QEMU_OPTION_pci
},
2235 { "cirrusvga", 0, QEMU_OPTION_cirrusvga
},
2239 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2241 /* this stack is only used during signal handling */
2242 #define SIGNAL_STACK_SIZE 32768
2244 static uint8_t *signal_stack
;
2248 #define NET_IF_TUN 0
2249 #define NET_IF_USER 1
2250 #define NET_IF_DUMMY 2
2252 int main(int argc
, char **argv
)
2254 #ifdef CONFIG_GDBSTUB
2255 int use_gdbstub
, gdbstub_port
;
2258 int snapshot
, linux_boot
;
2260 const char *initrd_filename
;
2261 const char *hd_filename
[MAX_DISKS
], *fd_filename
[MAX_FD
];
2262 const char *kernel_filename
, *kernel_cmdline
;
2263 DisplayState
*ds
= &display_state
;
2264 int cyls
, heads
, secs
;
2265 int start_emulation
= 1;
2267 int net_if_type
, nb_tun_fds
, tun_fds
[MAX_NICS
];
2269 const char *r
, *optarg
;
2271 #if !defined(CONFIG_SOFTMMU)
2272 /* we never want that malloc() uses mmap() */
2273 mallopt(M_MMAP_THRESHOLD
, 4096 * 1024);
2275 initrd_filename
= NULL
;
2276 for(i
= 0; i
< MAX_FD
; i
++)
2277 fd_filename
[i
] = NULL
;
2278 for(i
= 0; i
< MAX_DISKS
; i
++)
2279 hd_filename
[i
] = NULL
;
2280 ram_size
= DEFAULT_RAM_SIZE
* 1024 * 1024;
2281 vga_ram_size
= VGA_RAM_SIZE
;
2282 bios_size
= BIOS_SIZE
;
2283 pstrcpy(network_script
, sizeof(network_script
), DEFAULT_NETWORK_SCRIPT
);
2284 #ifdef CONFIG_GDBSTUB
2286 gdbstub_port
= DEFAULT_GDBSTUB_PORT
;
2290 kernel_filename
= NULL
;
2291 kernel_cmdline
= "";
2293 cyls
= heads
= secs
= 0;
2298 /* default mac address of the first network interface */
2312 hd_filename
[0] = argv
[optind
++];
2314 const QEMUOption
*popt
;
2317 popt
= qemu_options
;
2320 fprintf(stderr
, "%s: invalid option -- '%s'\n",
2324 if (!strcmp(popt
->name
, r
+ 1))
2328 if (popt
->flags
& HAS_ARG
) {
2329 if (optind
>= argc
) {
2330 fprintf(stderr
, "%s: option '%s' requires an argument\n",
2334 optarg
= argv
[optind
++];
2339 switch(popt
->index
) {
2340 case QEMU_OPTION_initrd
:
2341 initrd_filename
= optarg
;
2343 case QEMU_OPTION_hda
:
2344 hd_filename
[0] = optarg
;
2346 case QEMU_OPTION_hdb
:
2347 hd_filename
[1] = optarg
;
2349 case QEMU_OPTION_snapshot
:
2352 case QEMU_OPTION_hdachs
:
2356 cyls
= strtol(p
, (char **)&p
, 0);
2360 heads
= strtol(p
, (char **)&p
, 0);
2364 secs
= strtol(p
, (char **)&p
, 0);
2371 case QEMU_OPTION_nographic
:
2374 case QEMU_OPTION_kernel
:
2375 kernel_filename
= optarg
;
2377 case QEMU_OPTION_append
:
2378 kernel_cmdline
= optarg
;
2380 case QEMU_OPTION_tun_fd
:
2384 net_if_type
= NET_IF_TUN
;
2385 if (nb_tun_fds
< MAX_NICS
) {
2386 fd
= strtol(optarg
, (char **)&p
, 0);
2388 fprintf(stderr
, "qemu: invalid fd for network interface %d\n", nb_tun_fds
);
2391 tun_fds
[nb_tun_fds
++] = fd
;
2395 case QEMU_OPTION_hdc
:
2396 hd_filename
[2] = optarg
;
2399 case QEMU_OPTION_hdd
:
2400 hd_filename
[3] = optarg
;
2402 case QEMU_OPTION_cdrom
:
2403 hd_filename
[2] = optarg
;
2406 case QEMU_OPTION_boot
:
2407 boot_device
= optarg
[0];
2408 if (boot_device
!= 'a' && boot_device
!= 'b' &&
2409 boot_device
!= 'c' && boot_device
!= 'd') {
2410 fprintf(stderr
, "qemu: invalid boot device '%c'\n", boot_device
);
2414 case QEMU_OPTION_fda
:
2415 fd_filename
[0] = optarg
;
2417 case QEMU_OPTION_fdb
:
2418 fd_filename
[1] = optarg
;
2420 case QEMU_OPTION_no_code_copy
:
2421 code_copy_enabled
= 0;
2423 case QEMU_OPTION_nics
:
2424 nb_nics
= atoi(optarg
);
2425 if (nb_nics
< 0 || nb_nics
> MAX_NICS
) {
2426 fprintf(stderr
, "qemu: invalid number of network interfaces\n");
2430 case QEMU_OPTION_macaddr
:
2435 for(i
= 0; i
< 6; i
++) {
2436 macaddr
[i
] = strtol(p
, (char **)&p
, 16);
2443 fprintf(stderr
, "qemu: invalid syntax for ethernet address\n");
2451 case QEMU_OPTION_user_net
:
2452 net_if_type
= NET_IF_USER
;
2454 case QEMU_OPTION_dummy_net
:
2455 net_if_type
= NET_IF_DUMMY
;
2457 case QEMU_OPTION_enable_audio
:
2464 ram_size
= atoi(optarg
) * 1024 * 1024;
2467 if (ram_size
> PHYS_RAM_MAX_SIZE
) {
2468 fprintf(stderr
, "qemu: at most %d MB RAM can be simulated\n",
2469 PHYS_RAM_MAX_SIZE
/ (1024 * 1024));
2478 mask
= cpu_str_to_log_mask(optarg
);
2480 printf("Log items (comma separated):\n");
2481 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
2482 printf("%-10s %s\n", item
->name
, item
->help
);
2490 pstrcpy(network_script
, sizeof(network_script
), optarg
);
2492 #ifdef CONFIG_GDBSTUB
2497 gdbstub_port
= atoi(optarg
);
2504 start_emulation
= 0;
2506 case QEMU_OPTION_pci
:
2509 case QEMU_OPTION_isa
:
2512 case QEMU_OPTION_prep
:
2515 case QEMU_OPTION_localtime
:
2518 case QEMU_OPTION_cirrusvga
:
2519 cirrus_vga_enabled
= 1;
2526 w
= strtol(p
, (char **)&p
, 10);
2529 fprintf(stderr
, "qemu: invalid resolution or depth\n");
2535 h
= strtol(p
, (char **)&p
, 10);
2540 depth
= strtol(p
, (char **)&p
, 10);
2541 if (depth
!= 8 && depth
!= 15 && depth
!= 16 &&
2542 depth
!= 24 && depth
!= 32)
2544 } else if (*p
== '\0') {
2545 depth
= graphic_depth
;
2552 graphic_depth
= depth
;
2559 linux_boot
= (kernel_filename
!= NULL
);
2561 if (!linux_boot
&& hd_filename
[0] == '\0' && hd_filename
[2] == '\0' &&
2562 fd_filename
[0] == '\0')
2565 /* boot to cd by default if no hard disk */
2566 if (hd_filename
[0] == '\0' && boot_device
== 'c') {
2567 if (fd_filename
[0] != '\0')
2573 #if !defined(CONFIG_SOFTMMU)
2574 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
2576 static uint8_t stdout_buf
[4096];
2577 setvbuf(stdout
, stdout_buf
, _IOLBF
, sizeof(stdout_buf
));
2580 setvbuf(stdout
, NULL
, _IOLBF
, 0);
2583 /* init host network redirectors */
2584 if (net_if_type
== -1) {
2585 net_if_type
= NET_IF_TUN
;
2586 #if defined(CONFIG_SLIRP)
2587 if (access(network_script
, R_OK
) < 0) {
2588 net_if_type
= NET_IF_USER
;
2593 for(i
= 0; i
< nb_nics
; i
++) {
2594 NetDriverState
*nd
= &nd_table
[i
];
2596 /* init virtual mac address */
2597 nd
->macaddr
[0] = macaddr
[0];
2598 nd
->macaddr
[1] = macaddr
[1];
2599 nd
->macaddr
[2] = macaddr
[2];
2600 nd
->macaddr
[3] = macaddr
[3];
2601 nd
->macaddr
[4] = macaddr
[4];
2602 nd
->macaddr
[5] = macaddr
[5] + i
;
2603 switch(net_if_type
) {
2604 #if defined(CONFIG_SLIRP)
2609 #if !defined(_WIN32)
2611 if (i
< nb_tun_fds
) {
2612 net_fd_init(nd
, tun_fds
[i
]);
2614 if (net_tun_init(nd
) < 0)
2626 /* init the memory */
2627 phys_ram_size
= ram_size
+ vga_ram_size
+ bios_size
;
2629 #ifdef CONFIG_SOFTMMU
2631 /* mallocs are always aligned on BSD. valloc is better for correctness */
2632 phys_ram_base
= valloc(phys_ram_size
);
2634 phys_ram_base
= memalign(TARGET_PAGE_SIZE
, phys_ram_size
);
2636 if (!phys_ram_base
) {
2637 fprintf(stderr
, "Could not allocate physical memory\n");
2641 /* as we must map the same page at several addresses, we must use
2646 tmpdir
= getenv("QEMU_TMPDIR");
2649 snprintf(phys_ram_file
, sizeof(phys_ram_file
), "%s/vlXXXXXX", tmpdir
);
2650 if (mkstemp(phys_ram_file
) < 0) {
2651 fprintf(stderr
, "Could not create temporary memory file '%s'\n",
2655 phys_ram_fd
= open(phys_ram_file
, O_CREAT
| O_TRUNC
| O_RDWR
, 0600);
2656 if (phys_ram_fd
< 0) {
2657 fprintf(stderr
, "Could not open temporary memory file '%s'\n",
2661 ftruncate(phys_ram_fd
, phys_ram_size
);
2662 unlink(phys_ram_file
);
2663 phys_ram_base
= mmap(get_mmap_addr(phys_ram_size
),
2665 PROT_WRITE
| PROT_READ
, MAP_SHARED
| MAP_FIXED
,
2667 if (phys_ram_base
== MAP_FAILED
) {
2668 fprintf(stderr
, "Could not map physical memory\n");
2674 /* we always create the cdrom drive, even if no disk is there */
2676 bs_table
[2] = bdrv_new("cdrom");
2677 bdrv_set_type_hint(bs_table
[2], BDRV_TYPE_CDROM
);
2680 /* open the virtual block devices */
2681 for(i
= 0; i
< MAX_DISKS
; i
++) {
2682 if (hd_filename
[i
]) {
2685 snprintf(buf
, sizeof(buf
), "hd%c", i
+ 'a');
2686 bs_table
[i
] = bdrv_new(buf
);
2688 if (bdrv_open(bs_table
[i
], hd_filename
[i
], snapshot
) < 0) {
2689 fprintf(stderr
, "qemu: could not open hard disk image '%s\n",
2693 if (i
== 0 && cyls
!= 0)
2694 bdrv_set_geometry_hint(bs_table
[i
], cyls
, heads
, secs
);
2698 /* we always create at least one floppy disk */
2699 fd_table
[0] = bdrv_new("fda");
2700 bdrv_set_type_hint(fd_table
[0], BDRV_TYPE_FLOPPY
);
2702 for(i
= 0; i
< MAX_FD
; i
++) {
2703 if (fd_filename
[i
]) {
2706 snprintf(buf
, sizeof(buf
), "fd%c", i
+ 'a');
2707 fd_table
[i
] = bdrv_new(buf
);
2708 bdrv_set_type_hint(fd_table
[i
], BDRV_TYPE_FLOPPY
);
2710 if (fd_filename
[i
] != '\0') {
2711 if (bdrv_open(fd_table
[i
], fd_filename
[i
], snapshot
) < 0) {
2712 fprintf(stderr
, "qemu: could not open floppy disk image '%s'\n",
2720 /* init CPU state */
2723 cpu_single_env
= env
;
2725 register_savevm("timer", 0, 1, timer_save
, timer_load
, env
);
2726 register_savevm("cpu", 0, 2, cpu_save
, cpu_load
, env
);
2727 register_savevm("ram", 0, 1, ram_save
, ram_load
, NULL
);
2728 qemu_register_reset(main_cpu_reset
, global_env
);
2731 cpu_calibrate_ticks();
2735 dumb_display_init(ds
);
2738 sdl_display_init(ds
);
2740 dumb_display_init(ds
);
2744 /* setup cpu signal handlers for MMU / self modifying code handling */
2745 #if !defined(CONFIG_SOFTMMU)
2747 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2750 signal_stack
= memalign(16, SIGNAL_STACK_SIZE
);
2751 stk
.ss_sp
= signal_stack
;
2752 stk
.ss_size
= SIGNAL_STACK_SIZE
;
2755 if (sigaltstack(&stk
, NULL
) < 0) {
2756 perror("sigaltstack");
2762 struct sigaction act
;
2764 sigfillset(&act
.sa_mask
);
2765 act
.sa_flags
= SA_SIGINFO
;
2766 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2767 act
.sa_flags
|= SA_ONSTACK
;
2769 act
.sa_sigaction
= host_segv_handler
;
2770 sigaction(SIGSEGV
, &act
, NULL
);
2771 sigaction(SIGBUS
, &act
, NULL
);
2772 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
2773 sigaction(SIGFPE
, &act
, NULL
);
2780 struct sigaction act
;
2781 sigfillset(&act
.sa_mask
);
2783 act
.sa_handler
= SIG_IGN
;
2784 sigaction(SIGPIPE
, &act
, NULL
);
2789 #if defined(TARGET_I386)
2790 pc_init(ram_size
, vga_ram_size
, boot_device
,
2791 ds
, fd_filename
, snapshot
,
2792 kernel_filename
, kernel_cmdline
, initrd_filename
);
2793 #elif defined(TARGET_PPC)
2794 ppc_init(ram_size
, vga_ram_size
, boot_device
,
2795 ds
, fd_filename
, snapshot
,
2796 kernel_filename
, kernel_cmdline
, initrd_filename
);
2799 /* launched after the device init so that it can display or not a
2803 gui_timer
= qemu_new_timer(rt_clock
, gui_update
, NULL
);
2804 qemu_mod_timer(gui_timer
, qemu_get_clock(rt_clock
));
2806 #ifdef CONFIG_GDBSTUB
2808 if (gdbserver_start(gdbstub_port
) < 0) {
2809 fprintf(stderr
, "Could not open gdbserver socket on port %d\n",
2813 printf("Waiting gdb connection on port %d\n", gdbstub_port
);
2817 if (start_emulation
)