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
44 #include <sys/ioctl.h>
45 #include <sys/socket.h>
47 #include <linux/if_tun.h>
54 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
56 //#define DEBUG_UNUSED_IOPORT
58 #if !defined(CONFIG_SOFTMMU)
59 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
61 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
64 #if defined (TARGET_I386)
65 #elif defined (TARGET_PPC)
66 //#define USE_OPEN_FIRMWARE
67 #if !defined (USE_OPEN_FIRMWARE)
68 #define KERNEL_LOAD_ADDR 0x01000000
69 #define KERNEL_STACK_ADDR 0x01200000
71 #define KERNEL_LOAD_ADDR 0x00000000
72 #define KERNEL_STACK_ADDR 0x00400000
76 #define GUI_REFRESH_INTERVAL 30
78 /* XXX: use a two level table to limit memory usage */
79 #define MAX_IOPORTS 65536
81 const char *bios_dir
= CONFIG_QEMU_SHAREDIR
;
82 char phys_ram_file
[1024];
84 CPUState
*cpu_single_env
;
85 void *ioport_opaque
[MAX_IOPORTS
];
86 IOPortReadFunc
*ioport_read_table
[3][MAX_IOPORTS
];
87 IOPortWriteFunc
*ioport_write_table
[3][MAX_IOPORTS
];
88 BlockDriverState
*bs_table
[MAX_DISKS
], *fd_table
[MAX_FD
];
90 static DisplayState display_state
;
93 int64_t ticks_per_sec
;
94 int boot_device
= 'c';
96 static char network_script
[1024];
97 int pit_min_timer_count
= 0;
99 NetDriverState nd_table
[MAX_NICS
];
100 SerialState
*serial_console
;
102 /***********************************************************/
105 uint32_t default_ioport_readb(void *opaque
, uint32_t address
)
107 #ifdef DEBUG_UNUSED_IOPORT
108 fprintf(stderr
, "inb: port=0x%04x\n", address
);
113 void default_ioport_writeb(void *opaque
, uint32_t address
, uint32_t data
)
115 #ifdef DEBUG_UNUSED_IOPORT
116 fprintf(stderr
, "outb: port=0x%04x data=0x%02x\n", address
, data
);
120 /* default is to make two byte accesses */
121 uint32_t default_ioport_readw(void *opaque
, uint32_t address
)
124 data
= ioport_read_table
[0][address
& (MAX_IOPORTS
- 1)](opaque
, address
);
125 data
|= ioport_read_table
[0][(address
+ 1) & (MAX_IOPORTS
- 1)](opaque
, address
+ 1) << 8;
129 void default_ioport_writew(void *opaque
, uint32_t address
, uint32_t data
)
131 ioport_write_table
[0][address
& (MAX_IOPORTS
- 1)](opaque
, address
, data
& 0xff);
132 ioport_write_table
[0][(address
+ 1) & (MAX_IOPORTS
- 1)](opaque
, address
+ 1, (data
>> 8) & 0xff);
135 uint32_t default_ioport_readl(void *opaque
, uint32_t address
)
137 #ifdef DEBUG_UNUSED_IOPORT
138 fprintf(stderr
, "inl: port=0x%04x\n", address
);
143 void default_ioport_writel(void *opaque
, uint32_t address
, uint32_t data
)
145 #ifdef DEBUG_UNUSED_IOPORT
146 fprintf(stderr
, "outl: port=0x%04x data=0x%02x\n", address
, data
);
150 void init_ioports(void)
154 for(i
= 0; i
< MAX_IOPORTS
; i
++) {
155 ioport_read_table
[0][i
] = default_ioport_readb
;
156 ioport_write_table
[0][i
] = default_ioport_writeb
;
157 ioport_read_table
[1][i
] = default_ioport_readw
;
158 ioport_write_table
[1][i
] = default_ioport_writew
;
159 ioport_read_table
[2][i
] = default_ioport_readl
;
160 ioport_write_table
[2][i
] = default_ioport_writel
;
164 /* size is the word size in byte */
165 int register_ioport_read(int start
, int length
, int size
,
166 IOPortReadFunc
*func
, void *opaque
)
172 } else if (size
== 2) {
174 } else if (size
== 4) {
177 hw_error("register_ioport_read: invalid size");
180 for(i
= start
; i
< start
+ length
; i
+= size
) {
181 ioport_read_table
[bsize
][i
] = func
;
182 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
183 hw_error("register_ioport_read: invalid opaque");
184 ioport_opaque
[i
] = opaque
;
189 /* size is the word size in byte */
190 int register_ioport_write(int start
, int length
, int size
,
191 IOPortWriteFunc
*func
, void *opaque
)
197 } else if (size
== 2) {
199 } else if (size
== 4) {
202 hw_error("register_ioport_write: invalid size");
205 for(i
= start
; i
< start
+ length
; i
+= size
) {
206 ioport_write_table
[bsize
][i
] = func
;
207 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
208 hw_error("register_ioport_read: invalid opaque");
209 ioport_opaque
[i
] = opaque
;
214 void pstrcpy(char *buf
, int buf_size
, const char *str
)
224 if (c
== 0 || q
>= buf
+ buf_size
- 1)
231 /* strcat and truncate. */
232 char *pstrcat(char *buf
, int buf_size
, const char *s
)
237 pstrcpy(buf
+ len
, buf_size
- len
, s
);
241 /* return the size or -1 if error */
242 int load_image(const char *filename
, uint8_t *addr
)
245 fd
= open(filename
, O_RDONLY
);
248 size
= lseek(fd
, 0, SEEK_END
);
249 lseek(fd
, 0, SEEK_SET
);
250 if (read(fd
, addr
, size
) != size
) {
258 void cpu_outb(CPUState
*env
, int addr
, int val
)
260 addr
&= (MAX_IOPORTS
- 1);
261 ioport_write_table
[0][addr
](ioport_opaque
[addr
], addr
, val
);
264 void cpu_outw(CPUState
*env
, int addr
, int val
)
266 addr
&= (MAX_IOPORTS
- 1);
267 ioport_write_table
[1][addr
](ioport_opaque
[addr
], addr
, val
);
270 void cpu_outl(CPUState
*env
, int addr
, int val
)
272 addr
&= (MAX_IOPORTS
- 1);
273 ioport_write_table
[2][addr
](ioport_opaque
[addr
], addr
, val
);
276 int cpu_inb(CPUState
*env
, int addr
)
278 addr
&= (MAX_IOPORTS
- 1);
279 return ioport_read_table
[0][addr
](ioport_opaque
[addr
], addr
);
282 int cpu_inw(CPUState
*env
, int addr
)
284 addr
&= (MAX_IOPORTS
- 1);
285 return ioport_read_table
[1][addr
](ioport_opaque
[addr
], addr
);
288 int cpu_inl(CPUState
*env
, int addr
)
290 addr
&= (MAX_IOPORTS
- 1);
291 return ioport_read_table
[2][addr
](ioport_opaque
[addr
], addr
);
294 /***********************************************************/
295 void hw_error(const char *fmt
, ...)
300 fprintf(stderr
, "qemu: hardware error: ");
301 vfprintf(stderr
, fmt
, ap
);
302 fprintf(stderr
, "\n");
304 cpu_x86_dump_state(global_env
, stderr
, X86_DUMP_FPU
| X86_DUMP_CCOP
);
306 cpu_dump_state(global_env
, stderr
, 0);
312 #if defined(__powerpc__)
314 static inline uint32_t get_tbl(void)
317 asm volatile("mftb %0" : "=r" (tbl
));
321 static inline uint32_t get_tbu(void)
324 asm volatile("mftbu %0" : "=r" (tbl
));
328 int64_t cpu_get_real_ticks(void)
331 /* NOTE: we test if wrapping has occurred */
337 return ((int64_t)h
<< 32) | l
;
340 #elif defined(__i386__)
342 int64_t cpu_get_real_ticks(void)
345 asm("rdtsc" : "=A" (val
));
350 #error unsupported CPU
353 static int64_t cpu_ticks_offset
;
354 static int64_t cpu_ticks_last
;
356 int64_t cpu_get_ticks(void)
358 return cpu_get_real_ticks() + cpu_ticks_offset
;
361 /* enable cpu_get_ticks() */
362 void cpu_enable_ticks(void)
364 cpu_ticks_offset
= cpu_ticks_last
- cpu_get_real_ticks();
367 /* disable cpu_get_ticks() : the clock is stopped. You must not call
368 cpu_get_ticks() after that. */
369 void cpu_disable_ticks(void)
371 cpu_ticks_last
= cpu_get_ticks();
374 int64_t get_clock(void)
377 gettimeofday(&tv
, NULL
);
378 return tv
.tv_sec
* 1000000LL + tv
.tv_usec
;
381 void cpu_calibrate_ticks(void)
386 ticks
= cpu_get_ticks();
388 usec
= get_clock() - usec
;
389 ticks
= cpu_get_ticks() - ticks
;
390 ticks_per_sec
= (ticks
* 1000000LL + (usec
>> 1)) / usec
;
393 /* compute with 96 bit intermediate result: (a*b)/c */
394 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
399 #ifdef WORDS_BIGENDIAN
409 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
410 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
413 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
417 /***********************************************************/
420 int serial_open_device(void)
422 char slave_name
[1024];
423 int master_fd
, slave_fd
;
425 if (serial_console
== NULL
&& nographic
) {
426 /* use console for serial port */
429 if (openpty(&master_fd
, &slave_fd
, slave_name
, NULL
, NULL
) < 0) {
430 fprintf(stderr
, "warning: could not create pseudo terminal for serial port\n");
433 fprintf(stderr
, "Serial port redirected to %s\n", slave_name
);
438 /***********************************************************/
439 /* Linux network device redirector */
441 static int tun_open(char *ifname
, int ifname_size
)
446 fd
= open("/dev/net/tun", O_RDWR
);
448 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
451 memset(&ifr
, 0, sizeof(ifr
));
452 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
453 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tun%d");
454 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
456 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
460 printf("Connected to host network interface: %s\n", ifr
.ifr_name
);
461 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
462 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
466 static int net_init(void)
468 int pid
, status
, launch_script
, i
;
470 char *args
[MAX_NICS
+ 2];
474 for(i
= 0; i
< nb_nics
; i
++) {
477 nd
->fd
= tun_open(nd
->ifname
, sizeof(nd
->ifname
));
484 /* try to launch network init script */
489 *parg
++ = network_script
;
490 for(i
= 0; i
< nb_nics
; i
++) {
493 *parg
++ = nd
->ifname
;
497 execv(network_script
, args
);
500 while (waitpid(pid
, &status
, 0) != pid
);
501 if (!WIFEXITED(status
) ||
502 WEXITSTATUS(status
) != 0) {
503 fprintf(stderr
, "%s: could not launch network script\n",
511 void net_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
514 printf("NE2000: sending packet size=%d\n", size
);
516 write(nd
->fd
, buf
, size
);
519 /***********************************************************/
522 /* init terminal so that we can grab keys */
523 static struct termios oldtty
;
525 static void term_exit(void)
527 tcsetattr (0, TCSANOW
, &oldtty
);
530 static void term_init(void)
537 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
538 |INLCR
|IGNCR
|ICRNL
|IXON
);
539 tty
.c_oflag
|= OPOST
;
540 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
541 /* if graphical mode, we allow Ctrl-C handling */
543 tty
.c_lflag
&= ~ISIG
;
544 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
549 tcsetattr (0, TCSANOW
, &tty
);
553 fcntl(0, F_SETFL
, O_NONBLOCK
);
556 static void dumb_update(DisplayState
*ds
, int x
, int y
, int w
, int h
)
560 static void dumb_resize(DisplayState
*ds
, int w
, int h
)
564 static void dumb_refresh(DisplayState
*ds
)
566 vga_update_display();
569 void dumb_display_init(DisplayState
*ds
)
574 ds
->dpy_update
= dumb_update
;
575 ds
->dpy_resize
= dumb_resize
;
576 ds
->dpy_refresh
= dumb_refresh
;
579 #if !defined(CONFIG_SOFTMMU)
580 /***********************************************************/
581 /* cpu signal handler */
582 static void host_segv_handler(int host_signum
, siginfo_t
*info
,
585 if (cpu_signal_handler(host_signum
, info
, puc
))
592 static int timer_irq_pending
;
593 static int timer_irq_count
;
596 static int gui_refresh_pending
, gui_refresh_count
;
598 static void host_alarm_handler(int host_signum
, siginfo_t
*info
,
601 /* NOTE: since usually the OS asks a 100 Hz clock, there can be
602 some drift between cpu_get_ticks() and the interrupt time. So
603 we queue some interrupts to avoid missing some */
604 timer_irq_count
+= pit_get_out_edges(&pit_channels
[0]);
605 if (timer_irq_count
) {
606 if (timer_irq_count
> 2)
609 timer_irq_pending
= 1;
611 gui_refresh_count
+= timer_ms
;
612 if (gui_refresh_count
>= GUI_REFRESH_INTERVAL
) {
613 gui_refresh_count
= 0;
614 gui_refresh_pending
= 1;
617 if (gui_refresh_pending
|| timer_irq_pending
) {
618 /* just exit from the cpu to have a chance to handle timers */
619 cpu_interrupt(global_env
, CPU_INTERRUPT_EXIT
);
623 #define MAX_IO_HANDLERS 64
625 typedef struct IOHandlerRecord
{
627 IOCanRWHandler
*fd_can_read
;
628 IOReadHandler
*fd_read
;
635 static IOHandlerRecord io_handlers
[MAX_IO_HANDLERS
];
636 static int nb_io_handlers
= 0;
638 int add_fd_read_handler(int fd
, IOCanRWHandler
*fd_can_read
,
639 IOReadHandler
*fd_read
, void *opaque
)
641 IOHandlerRecord
*ioh
;
643 if (nb_io_handlers
>= MAX_IO_HANDLERS
)
645 ioh
= &io_handlers
[nb_io_handlers
];
647 ioh
->fd_can_read
= fd_can_read
;
648 ioh
->fd_read
= fd_read
;
649 ioh
->opaque
= opaque
;
654 /* main execution loop */
656 CPUState
*cpu_gdbstub_get_env(void *opaque
)
661 int main_loop(void *opaque
)
663 struct pollfd ufds
[MAX_IO_HANDLERS
+ 1], *pf
, *gdb_ufd
;
664 int ret
, n
, timeout
, serial_ok
, max_size
, i
;
666 IOHandlerRecord
*ioh
;
667 CPUState
*env
= global_env
;
670 /* initialize terminal only there so that the user has a
671 chance to stop QEMU with Ctrl-C before the gdb connection
680 #if defined (DO_TB_FLUSH)
684 if (reset_requested
) {
685 ret
= EXCP_INTERRUPT
;
688 if (ret
== EXCP_DEBUG
) {
692 /* if hlt instruction, we wait until the next IRQ */
698 /* poll any events */
701 for(i
= 0; i
< nb_io_handlers
; i
++) {
702 max_size
= ioh
->fd_can_read(ioh
->opaque
);
704 if (max_size
> sizeof(buf
))
705 max_size
= sizeof(buf
);
713 ioh
->max_size
= max_size
;
718 if (gdbstub_fd
> 0) {
725 ret
= poll(ufds
, pf
- ufds
, timeout
);
728 for(i
= 0; i
< nb_io_handlers
; i
++) {
731 n
= read(ioh
->fd
, buf
, ioh
->max_size
);
733 ioh
->fd_read(ioh
->opaque
, buf
, n
);
738 if (gdb_ufd
&& (gdb_ufd
->revents
& POLLIN
)) {
740 /* stop emulation if requested by gdb */
741 n
= read(gdbstub_fd
, buf
, 1);
743 ret
= EXCP_INTERRUPT
;
750 if (timer_irq_pending
) {
751 #if defined (TARGET_I386)
754 timer_irq_pending
= 0;
758 /* XXX: add explicit timer */
761 /* run dma transfers, if any */
765 if (gui_refresh_pending
) {
766 display_state
.dpy_refresh(&display_state
);
767 gui_refresh_pending
= 0;
776 printf("QEMU PC emulator version " QEMU_VERSION
", Copyright (c) 2003 Fabrice Bellard\n"
777 "usage: %s [options] [disk_image]\n"
779 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
781 "Standard options:\n"
782 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
783 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
784 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
785 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
786 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
787 "-snapshot write to temporary files instead of disk image files\n"
788 "-m megs set virtual RAM size to megs MB\n"
789 "-nographic disable graphical output and redirect serial I/Os to console\n"
792 "-n script set network init script [default=%s]\n"
793 "-nics n simulate 'n' network interfaces [default=1]\n"
794 "-tun-fd fd0[,...] use these fds as already opened tap/tun interfaces\n"
796 "Linux boot specific:\n"
797 "-kernel bzImage use 'bzImage' as kernel image\n"
798 "-append cmdline use 'cmdline' as kernel command line\n"
799 "-initrd file use 'file' as initial ram disk\n"
801 "Debug/Expert options:\n"
802 "-s wait gdb connection to port %d\n"
803 "-p port change gdb connection port\n"
804 "-d output log to %s\n"
805 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
806 "-L path set the directory for the BIOS and VGA BIOS\n"
808 "-no-code-copy disable code copy acceleration\n"
812 "During emulation, use C-a h to get terminal commands:\n",
813 #ifdef CONFIG_SOFTMMU
818 DEFAULT_NETWORK_SCRIPT
,
819 DEFAULT_GDBSTUB_PORT
,
822 #ifndef CONFIG_SOFTMMU
824 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
825 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
831 struct option long_options
[] = {
832 { "initrd", 1, NULL
, 0, },
833 { "hda", 1, NULL
, 0, },
834 { "hdb", 1, NULL
, 0, },
835 { "snapshot", 0, NULL
, 0, },
836 { "hdachs", 1, NULL
, 0, },
837 { "nographic", 0, NULL
, 0, },
838 { "kernel", 1, NULL
, 0, },
839 { "append", 1, NULL
, 0, },
840 { "tun-fd", 1, NULL
, 0, },
841 { "hdc", 1, NULL
, 0, },
842 { "hdd", 1, NULL
, 0, },
843 { "cdrom", 1, NULL
, 0, },
844 { "boot", 1, NULL
, 0, },
845 { "fda", 1, NULL
, 0, },
846 { "fdb", 1, NULL
, 0, },
847 { "no-code-copy", 0, NULL
, 0 },
848 { "nics", 1, NULL
, 0 },
849 { NULL
, 0, NULL
, 0 },
853 /* SDL use the pthreads and they modify sigaction. We don't
855 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
856 extern void __libc_sigaction();
857 #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
859 extern void __sigaction();
860 #define sigaction(sig, act, oact) __sigaction(sig, act, oact)
862 #endif /* CONFIG_SDL */
864 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
866 /* this stack is only used during signal handling */
867 #define SIGNAL_STACK_SIZE 32768
869 static uint8_t *signal_stack
;
873 int main(int argc
, char **argv
)
875 int c
, i
, use_gdbstub
, gdbstub_port
, long_index
, has_cdrom
;
876 int snapshot
, linux_boot
;
877 struct sigaction act
;
878 struct itimerval itv
;
880 const char *initrd_filename
;
881 const char *hd_filename
[MAX_DISKS
], *fd_filename
[MAX_FD
];
882 const char *kernel_filename
, *kernel_cmdline
;
883 DisplayState
*ds
= &display_state
;
884 int cyls
, heads
, secs
;
886 /* we never want that malloc() uses mmap() */
887 mallopt(M_MMAP_THRESHOLD
, 4096 * 1024);
888 initrd_filename
= NULL
;
889 for(i
= 0; i
< MAX_FD
; i
++)
890 fd_filename
[i
] = NULL
;
891 for(i
= 0; i
< MAX_DISKS
; i
++)
892 hd_filename
[i
] = NULL
;
893 ram_size
= 32 * 1024 * 1024;
894 vga_ram_size
= VGA_RAM_SIZE
;
895 pstrcpy(network_script
, sizeof(network_script
), DEFAULT_NETWORK_SCRIPT
);
897 gdbstub_port
= DEFAULT_GDBSTUB_PORT
;
900 kernel_filename
= NULL
;
903 cyls
= heads
= secs
= 0;
906 for(i
= 0; i
< MAX_NICS
; i
++) {
907 NetDriverState
*nd
= &nd_table
[i
];
909 /* init virtual mac address */
910 nd
->macaddr
[0] = 0x52;
911 nd
->macaddr
[1] = 0x54;
912 nd
->macaddr
[2] = 0x00;
913 nd
->macaddr
[3] = 0x12;
914 nd
->macaddr
[4] = 0x34;
915 nd
->macaddr
[5] = 0x56 + i
;
919 c
= getopt_long_only(argc
, argv
, "hm:dn:sp:L:", long_options
, &long_index
);
926 initrd_filename
= optarg
;
929 hd_filename
[0] = optarg
;
932 hd_filename
[1] = optarg
;
941 cyls
= strtol(p
, (char **)&p
, 0);
945 heads
= strtol(p
, (char **)&p
, 0);
949 secs
= strtol(p
, (char **)&p
, 0);
960 kernel_filename
= optarg
;
963 kernel_cmdline
= optarg
;
972 fd
= strtol(p
, (char **)&p
, 0);
973 nd_table
[nb_nics
].fd
= fd
;
974 snprintf(nd_table
[nb_nics
].ifname
,
975 sizeof(nd_table
[nb_nics
].ifname
),
980 } else if (*p
!= '\0') {
981 fprintf(stderr
, "qemu: invalid fd for network interface %d\n", nb_nics
);
988 hd_filename
[2] = optarg
;
992 hd_filename
[3] = optarg
;
995 hd_filename
[2] = optarg
;
999 boot_device
= optarg
[0];
1000 if (boot_device
!= 'a' && boot_device
!= 'b' &&
1001 boot_device
!= 'c' && boot_device
!= 'd') {
1002 fprintf(stderr
, "qemu: invalid boot device '%c'\n", boot_device
);
1007 fd_filename
[0] = optarg
;
1010 fd_filename
[1] = optarg
;
1013 code_copy_enabled
= 0;
1016 nb_nics
= atoi(optarg
);
1017 if (nb_nics
< 1 || nb_nics
> MAX_NICS
) {
1018 fprintf(stderr
, "qemu: invalid number of network interfaces\n");
1028 ram_size
= atoi(optarg
) * 1024 * 1024;
1031 if (ram_size
> PHYS_RAM_MAX_SIZE
) {
1032 fprintf(stderr
, "qemu: at most %d MB RAM can be simulated\n",
1033 PHYS_RAM_MAX_SIZE
/ (1024 * 1024));
1038 cpu_set_log(CPU_LOG_ALL
);
1041 pstrcpy(network_script
, sizeof(network_script
), optarg
);
1047 gdbstub_port
= atoi(optarg
);
1055 if (optind
< argc
) {
1056 hd_filename
[0] = argv
[optind
++];
1059 linux_boot
= (kernel_filename
!= NULL
);
1061 if (!linux_boot
&& hd_filename
[0] == '\0' && hd_filename
[2] == '\0' &&
1062 fd_filename
[0] == '\0')
1065 /* boot to cd by default if no hard disk */
1066 if (hd_filename
[0] == '\0' && boot_device
== 'c') {
1067 if (fd_filename
[0] != '\0')
1073 #if !defined(CONFIG_SOFTMMU)
1074 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
1076 static uint8_t stdout_buf
[4096];
1077 setvbuf(stdout
, stdout_buf
, _IOLBF
, sizeof(stdout_buf
));
1080 setvbuf(stdout
, NULL
, _IOLBF
, 0);
1083 /* init host network redirectors */
1086 /* init the memory */
1087 phys_ram_size
= ram_size
+ vga_ram_size
;
1089 #ifdef CONFIG_SOFTMMU
1090 phys_ram_base
= memalign(TARGET_PAGE_SIZE
, phys_ram_size
);
1091 if (!phys_ram_base
) {
1092 fprintf(stderr
, "Could not allocate physical memory\n");
1096 /* as we must map the same page at several addresses, we must use
1101 tmpdir
= getenv("QEMU_TMPDIR");
1104 snprintf(phys_ram_file
, sizeof(phys_ram_file
), "%s/vlXXXXXX", tmpdir
);
1105 if (mkstemp(phys_ram_file
) < 0) {
1106 fprintf(stderr
, "Could not create temporary memory file '%s'\n",
1110 phys_ram_fd
= open(phys_ram_file
, O_CREAT
| O_TRUNC
| O_RDWR
, 0600);
1111 if (phys_ram_fd
< 0) {
1112 fprintf(stderr
, "Could not open temporary memory file '%s'\n",
1116 ftruncate(phys_ram_fd
, phys_ram_size
);
1117 unlink(phys_ram_file
);
1118 phys_ram_base
= mmap(get_mmap_addr(phys_ram_size
),
1120 PROT_WRITE
| PROT_READ
, MAP_SHARED
| MAP_FIXED
,
1122 if (phys_ram_base
== MAP_FAILED
) {
1123 fprintf(stderr
, "Could not map physical memory\n");
1129 /* we always create the cdrom drive, even if no disk is there */
1131 bs_table
[2] = bdrv_new("cdrom");
1132 bdrv_set_type_hint(bs_table
[2], BDRV_TYPE_CDROM
);
1135 /* open the virtual block devices */
1136 for(i
= 0; i
< MAX_DISKS
; i
++) {
1137 if (hd_filename
[i
]) {
1140 snprintf(buf
, sizeof(buf
), "hd%c", i
+ 'a');
1141 bs_table
[i
] = bdrv_new(buf
);
1143 if (bdrv_open(bs_table
[i
], hd_filename
[i
], snapshot
) < 0) {
1144 fprintf(stderr
, "qemu: could not open hard disk image '%s\n",
1148 if (i
== 0 && cyls
!= 0)
1149 bdrv_set_geometry_hint(bs_table
[i
], cyls
, heads
, secs
);
1153 /* we always create at least one floppy disk */
1154 fd_table
[0] = bdrv_new("fda");
1155 bdrv_set_type_hint(fd_table
[0], BDRV_TYPE_FLOPPY
);
1157 for(i
= 0; i
< MAX_FD
; i
++) {
1158 if (fd_filename
[i
]) {
1161 snprintf(buf
, sizeof(buf
), "fd%c", i
+ 'a');
1162 fd_table
[i
] = bdrv_new(buf
);
1163 bdrv_set_type_hint(fd_table
[i
], BDRV_TYPE_FLOPPY
);
1165 if (fd_filename
[i
] != '\0') {
1166 if (bdrv_open(fd_table
[i
], fd_filename
[i
], snapshot
) < 0) {
1167 fprintf(stderr
, "qemu: could not open floppy disk image '%s\n",
1175 /* init CPU state */
1178 cpu_single_env
= env
;
1181 cpu_calibrate_ticks();
1185 dumb_display_init(ds
);
1188 sdl_display_init(ds
);
1190 dumb_display_init(ds
);
1194 #if defined(TARGET_I386)
1195 pc_init(ram_size
, vga_ram_size
, boot_device
,
1196 ds
, fd_filename
, snapshot
,
1197 kernel_filename
, kernel_cmdline
, initrd_filename
);
1198 #elif defined(TARGET_PPC)
1202 /* launched after the device init so that it can display or not a
1206 /* setup cpu signal handlers for MMU / self modifying code handling */
1207 #if !defined(CONFIG_SOFTMMU)
1209 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1212 signal_stack
= malloc(SIGNAL_STACK_SIZE
);
1213 stk
.ss_sp
= signal_stack
;
1214 stk
.ss_size
= SIGNAL_STACK_SIZE
;
1217 if (sigaltstack(&stk
, NULL
) < 0) {
1218 perror("sigaltstack");
1224 sigfillset(&act
.sa_mask
);
1225 act
.sa_flags
= SA_SIGINFO
;
1226 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1227 act
.sa_flags
|= SA_ONSTACK
;
1229 act
.sa_sigaction
= host_segv_handler
;
1230 sigaction(SIGSEGV
, &act
, NULL
);
1231 sigaction(SIGBUS
, &act
, NULL
);
1232 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1233 sigaction(SIGFPE
, &act
, NULL
);
1238 sigfillset(&act
.sa_mask
);
1239 act
.sa_flags
= SA_SIGINFO
;
1240 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1241 act
.sa_flags
|= SA_ONSTACK
;
1243 act
.sa_sigaction
= host_alarm_handler
;
1244 sigaction(SIGALRM
, &act
, NULL
);
1246 itv
.it_interval
.tv_sec
= 0;
1247 itv
.it_interval
.tv_usec
= 1000;
1248 itv
.it_value
.tv_sec
= 0;
1249 itv
.it_value
.tv_usec
= 10 * 1000;
1250 setitimer(ITIMER_REAL
, &itv
, NULL
);
1251 /* we probe the tick duration of the kernel to inform the user if
1252 the emulated kernel requested a too high timer frequency */
1253 getitimer(ITIMER_REAL
, &itv
);
1254 timer_ms
= itv
.it_interval
.tv_usec
/ 1000;
1255 pit_min_timer_count
= ((uint64_t)itv
.it_interval
.tv_usec
* PIT_FREQ
) /
1259 cpu_gdbstub(NULL
, main_loop
, gdbstub_port
);