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>
53 #define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
55 //#define DEBUG_UNUSED_IOPORT
57 #if !defined(CONFIG_SOFTMMU)
58 #define PHYS_RAM_MAX_SIZE (256 * 1024 * 1024)
60 #define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
63 #if defined (TARGET_I386)
64 #elif defined (TARGET_PPC)
65 //#define USE_OPEN_FIRMWARE
66 #if !defined (USE_OPEN_FIRMWARE)
67 #define KERNEL_LOAD_ADDR 0x01000000
68 #define KERNEL_STACK_ADDR 0x01200000
70 #define KERNEL_LOAD_ADDR 0x00000000
71 #define KERNEL_STACK_ADDR 0x00400000
75 #define GUI_REFRESH_INTERVAL 30
77 /* XXX: use a two level table to limit memory usage */
78 #define MAX_IOPORTS 65536
80 const char *bios_dir
= CONFIG_QEMU_SHAREDIR
;
81 char phys_ram_file
[1024];
83 CPUState
*cpu_single_env
;
84 void *ioport_opaque
[MAX_IOPORTS
];
85 IOPortReadFunc
*ioport_read_table
[3][MAX_IOPORTS
];
86 IOPortWriteFunc
*ioport_write_table
[3][MAX_IOPORTS
];
87 BlockDriverState
*bs_table
[MAX_DISKS
], *fd_table
[MAX_FD
];
89 static DisplayState display_state
;
92 int64_t ticks_per_sec
;
93 int boot_device
= 'c';
95 static char network_script
[1024];
96 int pit_min_timer_count
= 0;
98 NetDriverState nd_table
[MAX_NICS
];
99 SerialState
*serial_console
;
101 /***********************************************************/
104 uint32_t default_ioport_readb(void *opaque
, uint32_t address
)
106 #ifdef DEBUG_UNUSED_IOPORT
107 fprintf(stderr
, "inb: port=0x%04x\n", address
);
112 void default_ioport_writeb(void *opaque
, uint32_t address
, uint32_t data
)
114 #ifdef DEBUG_UNUSED_IOPORT
115 fprintf(stderr
, "outb: port=0x%04x data=0x%02x\n", address
, data
);
119 /* default is to make two byte accesses */
120 uint32_t default_ioport_readw(void *opaque
, uint32_t address
)
123 data
= ioport_read_table
[0][address
& (MAX_IOPORTS
- 1)](opaque
, address
);
124 data
|= ioport_read_table
[0][(address
+ 1) & (MAX_IOPORTS
- 1)](opaque
, address
+ 1) << 8;
128 void default_ioport_writew(void *opaque
, uint32_t address
, uint32_t data
)
130 ioport_write_table
[0][address
& (MAX_IOPORTS
- 1)](opaque
, address
, data
& 0xff);
131 ioport_write_table
[0][(address
+ 1) & (MAX_IOPORTS
- 1)](opaque
, address
+ 1, (data
>> 8) & 0xff);
134 uint32_t default_ioport_readl(void *opaque
, uint32_t address
)
136 #ifdef DEBUG_UNUSED_IOPORT
137 fprintf(stderr
, "inl: port=0x%04x\n", address
);
142 void default_ioport_writel(void *opaque
, uint32_t address
, uint32_t data
)
144 #ifdef DEBUG_UNUSED_IOPORT
145 fprintf(stderr
, "outl: port=0x%04x data=0x%02x\n", address
, data
);
149 void init_ioports(void)
153 for(i
= 0; i
< MAX_IOPORTS
; i
++) {
154 ioport_read_table
[0][i
] = default_ioport_readb
;
155 ioport_write_table
[0][i
] = default_ioport_writeb
;
156 ioport_read_table
[1][i
] = default_ioport_readw
;
157 ioport_write_table
[1][i
] = default_ioport_writew
;
158 ioport_read_table
[2][i
] = default_ioport_readl
;
159 ioport_write_table
[2][i
] = default_ioport_writel
;
163 /* size is the word size in byte */
164 int register_ioport_read(int start
, int length
, int size
,
165 IOPortReadFunc
*func
, void *opaque
)
171 } else if (size
== 2) {
173 } else if (size
== 4) {
176 hw_error("register_ioport_read: invalid size");
179 for(i
= start
; i
< start
+ length
; i
+= size
) {
180 ioport_read_table
[bsize
][i
] = func
;
181 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
182 hw_error("register_ioport_read: invalid opaque");
183 ioport_opaque
[i
] = opaque
;
188 /* size is the word size in byte */
189 int register_ioport_write(int start
, int length
, int size
,
190 IOPortWriteFunc
*func
, void *opaque
)
196 } else if (size
== 2) {
198 } else if (size
== 4) {
201 hw_error("register_ioport_write: invalid size");
204 for(i
= start
; i
< start
+ length
; i
+= size
) {
205 ioport_write_table
[bsize
][i
] = func
;
206 if (ioport_opaque
[i
] != NULL
&& ioport_opaque
[i
] != opaque
)
207 hw_error("register_ioport_read: invalid opaque");
208 ioport_opaque
[i
] = opaque
;
213 void pstrcpy(char *buf
, int buf_size
, const char *str
)
223 if (c
== 0 || q
>= buf
+ buf_size
- 1)
230 /* strcat and truncate. */
231 char *pstrcat(char *buf
, int buf_size
, const char *s
)
236 pstrcpy(buf
+ len
, buf_size
- len
, s
);
240 /* return the size or -1 if error */
241 int load_image(const char *filename
, uint8_t *addr
)
244 fd
= open(filename
, O_RDONLY
);
247 size
= lseek(fd
, 0, SEEK_END
);
248 lseek(fd
, 0, SEEK_SET
);
249 if (read(fd
, addr
, size
) != size
) {
257 void cpu_outb(CPUState
*env
, int addr
, int val
)
259 addr
&= (MAX_IOPORTS
- 1);
260 ioport_write_table
[0][addr
](ioport_opaque
[addr
], addr
, val
);
263 void cpu_outw(CPUState
*env
, int addr
, int val
)
265 addr
&= (MAX_IOPORTS
- 1);
266 ioport_write_table
[1][addr
](ioport_opaque
[addr
], addr
, val
);
269 void cpu_outl(CPUState
*env
, int addr
, int val
)
271 addr
&= (MAX_IOPORTS
- 1);
272 ioport_write_table
[2][addr
](ioport_opaque
[addr
], addr
, val
);
275 int cpu_inb(CPUState
*env
, int addr
)
277 addr
&= (MAX_IOPORTS
- 1);
278 return ioport_read_table
[0][addr
](ioport_opaque
[addr
], addr
);
281 int cpu_inw(CPUState
*env
, int addr
)
283 addr
&= (MAX_IOPORTS
- 1);
284 return ioport_read_table
[1][addr
](ioport_opaque
[addr
], addr
);
287 int cpu_inl(CPUState
*env
, int addr
)
289 addr
&= (MAX_IOPORTS
- 1);
290 return ioport_read_table
[2][addr
](ioport_opaque
[addr
], addr
);
293 /***********************************************************/
294 void hw_error(const char *fmt
, ...)
299 fprintf(stderr
, "qemu: hardware error: ");
300 vfprintf(stderr
, fmt
, ap
);
301 fprintf(stderr
, "\n");
303 cpu_x86_dump_state(global_env
, stderr
, X86_DUMP_FPU
| X86_DUMP_CCOP
);
305 cpu_dump_state(global_env
, stderr
, 0);
311 #if defined(__powerpc__)
313 static inline uint32_t get_tbl(void)
316 asm volatile("mftb %0" : "=r" (tbl
));
320 static inline uint32_t get_tbu(void)
323 asm volatile("mftbu %0" : "=r" (tbl
));
327 int64_t cpu_get_real_ticks(void)
330 /* NOTE: we test if wrapping has occurred */
336 return ((int64_t)h
<< 32) | l
;
339 #elif defined(__i386__)
341 int64_t cpu_get_real_ticks(void)
344 asm("rdtsc" : "=A" (val
));
349 #error unsupported CPU
352 static int64_t cpu_ticks_offset
;
353 static int64_t cpu_ticks_last
;
355 int64_t cpu_get_ticks(void)
357 return cpu_get_real_ticks() + cpu_ticks_offset
;
360 /* enable cpu_get_ticks() */
361 void cpu_enable_ticks(void)
363 cpu_ticks_offset
= cpu_ticks_last
- cpu_get_real_ticks();
366 /* disable cpu_get_ticks() : the clock is stopped. You must not call
367 cpu_get_ticks() after that. */
368 void cpu_disable_ticks(void)
370 cpu_ticks_last
= cpu_get_ticks();
373 int64_t get_clock(void)
376 gettimeofday(&tv
, NULL
);
377 return tv
.tv_sec
* 1000000LL + tv
.tv_usec
;
380 void cpu_calibrate_ticks(void)
385 ticks
= cpu_get_ticks();
387 usec
= get_clock() - usec
;
388 ticks
= cpu_get_ticks() - ticks
;
389 ticks_per_sec
= (ticks
* 1000000LL + (usec
>> 1)) / usec
;
392 /* compute with 96 bit intermediate result: (a*b)/c */
393 uint64_t muldiv64(uint64_t a
, uint32_t b
, uint32_t c
)
398 #ifdef WORDS_BIGENDIAN
408 rl
= (uint64_t)u
.l
.low
* (uint64_t)b
;
409 rh
= (uint64_t)u
.l
.high
* (uint64_t)b
;
412 res
.l
.low
= (((rh
% c
) << 32) + (rl
& 0xffffffff)) / c
;
416 /***********************************************************/
419 int serial_open_device(void)
421 char slave_name
[1024];
422 int master_fd
, slave_fd
;
424 if (serial_console
== NULL
&& nographic
) {
425 /* use console for serial port */
428 if (openpty(&master_fd
, &slave_fd
, slave_name
, NULL
, NULL
) < 0) {
429 fprintf(stderr
, "warning: could not create pseudo terminal for serial port\n");
432 fprintf(stderr
, "Serial port redirected to %s\n", slave_name
);
437 /***********************************************************/
438 /* Linux network device redirector */
440 static int tun_open(char *ifname
, int ifname_size
)
445 fd
= open("/dev/net/tun", O_RDWR
);
447 fprintf(stderr
, "warning: could not open /dev/net/tun: no virtual network emulation\n");
450 memset(&ifr
, 0, sizeof(ifr
));
451 ifr
.ifr_flags
= IFF_TAP
| IFF_NO_PI
;
452 pstrcpy(ifr
.ifr_name
, IFNAMSIZ
, "tun%d");
453 ret
= ioctl(fd
, TUNSETIFF
, (void *) &ifr
);
455 fprintf(stderr
, "warning: could not configure /dev/net/tun: no virtual network emulation\n");
459 printf("Connected to host network interface: %s\n", ifr
.ifr_name
);
460 pstrcpy(ifname
, ifname_size
, ifr
.ifr_name
);
461 fcntl(fd
, F_SETFL
, O_NONBLOCK
);
465 static int net_init(void)
467 int pid
, status
, launch_script
, i
;
469 char *args
[MAX_NICS
+ 2];
473 for(i
= 0; i
< nb_nics
; i
++) {
476 nd
->fd
= tun_open(nd
->ifname
, sizeof(nd
->ifname
));
483 /* try to launch network init script */
488 *parg
++ = network_script
;
489 for(i
= 0; i
< nb_nics
; i
++) {
492 *parg
++ = nd
->ifname
;
496 execv(network_script
, args
);
499 while (waitpid(pid
, &status
, 0) != pid
);
500 if (!WIFEXITED(status
) ||
501 WEXITSTATUS(status
) != 0) {
502 fprintf(stderr
, "%s: could not launch network script\n",
510 void net_send_packet(NetDriverState
*nd
, const uint8_t *buf
, int size
)
513 printf("NE2000: sending packet size=%d\n", size
);
515 write(nd
->fd
, buf
, size
);
518 /***********************************************************/
521 /* init terminal so that we can grab keys */
522 static struct termios oldtty
;
524 static void term_exit(void)
526 tcsetattr (0, TCSANOW
, &oldtty
);
529 static void term_init(void)
536 tty
.c_iflag
&= ~(IGNBRK
|BRKINT
|PARMRK
|ISTRIP
537 |INLCR
|IGNCR
|ICRNL
|IXON
);
538 tty
.c_oflag
|= OPOST
;
539 tty
.c_lflag
&= ~(ECHO
|ECHONL
|ICANON
|IEXTEN
);
540 /* if graphical mode, we allow Ctrl-C handling */
542 tty
.c_lflag
&= ~ISIG
;
543 tty
.c_cflag
&= ~(CSIZE
|PARENB
);
548 tcsetattr (0, TCSANOW
, &tty
);
552 fcntl(0, F_SETFL
, O_NONBLOCK
);
555 static void dumb_update(DisplayState
*ds
, int x
, int y
, int w
, int h
)
559 static void dumb_resize(DisplayState
*ds
, int w
, int h
)
563 static void dumb_refresh(DisplayState
*ds
)
565 vga_update_display();
568 void dumb_display_init(DisplayState
*ds
)
573 ds
->dpy_update
= dumb_update
;
574 ds
->dpy_resize
= dumb_resize
;
575 ds
->dpy_refresh
= dumb_refresh
;
578 #if !defined(CONFIG_SOFTMMU)
579 /***********************************************************/
580 /* cpu signal handler */
581 static void host_segv_handler(int host_signum
, siginfo_t
*info
,
584 if (cpu_signal_handler(host_signum
, info
, puc
))
591 static int timer_irq_pending
;
592 static int timer_irq_count
;
595 static int gui_refresh_pending
, gui_refresh_count
;
597 static void host_alarm_handler(int host_signum
, siginfo_t
*info
,
600 /* NOTE: since usually the OS asks a 100 Hz clock, there can be
601 some drift between cpu_get_ticks() and the interrupt time. So
602 we queue some interrupts to avoid missing some */
603 timer_irq_count
+= pit_get_out_edges(&pit_channels
[0]);
604 if (timer_irq_count
) {
605 if (timer_irq_count
> 2)
608 timer_irq_pending
= 1;
610 gui_refresh_count
+= timer_ms
;
611 if (gui_refresh_count
>= GUI_REFRESH_INTERVAL
) {
612 gui_refresh_count
= 0;
613 gui_refresh_pending
= 1;
616 if (gui_refresh_pending
|| timer_irq_pending
) {
617 /* just exit from the cpu to have a chance to handle timers */
618 cpu_interrupt(global_env
, CPU_INTERRUPT_EXIT
);
622 #define MAX_IO_HANDLERS 64
624 typedef struct IOHandlerRecord
{
626 IOCanRWHandler
*fd_can_read
;
627 IOReadHandler
*fd_read
;
634 static IOHandlerRecord io_handlers
[MAX_IO_HANDLERS
];
635 static int nb_io_handlers
= 0;
637 int add_fd_read_handler(int fd
, IOCanRWHandler
*fd_can_read
,
638 IOReadHandler
*fd_read
, void *opaque
)
640 IOHandlerRecord
*ioh
;
642 if (nb_io_handlers
>= MAX_IO_HANDLERS
)
644 ioh
= &io_handlers
[nb_io_handlers
];
646 ioh
->fd_can_read
= fd_can_read
;
647 ioh
->fd_read
= fd_read
;
648 ioh
->opaque
= opaque
;
653 /* main execution loop */
655 CPUState
*cpu_gdbstub_get_env(void *opaque
)
660 int main_loop(void *opaque
)
662 struct pollfd ufds
[MAX_IO_HANDLERS
+ 1], *pf
, *gdb_ufd
;
663 int ret
, n
, timeout
, serial_ok
, max_size
, i
;
665 IOHandlerRecord
*ioh
;
666 CPUState
*env
= global_env
;
669 /* initialize terminal only there so that the user has a
670 chance to stop QEMU with Ctrl-C before the gdb connection
679 #if defined (DO_TB_FLUSH)
683 if (reset_requested
) {
684 ret
= EXCP_INTERRUPT
;
687 if (ret
== EXCP_DEBUG
) {
691 /* if hlt instruction, we wait until the next IRQ */
697 /* poll any events */
700 for(i
= 0; i
< nb_io_handlers
; i
++) {
701 max_size
= ioh
->fd_can_read(ioh
->opaque
);
703 if (max_size
> sizeof(buf
))
704 max_size
= sizeof(buf
);
712 ioh
->max_size
= max_size
;
717 if (gdbstub_fd
> 0) {
724 ret
= poll(ufds
, pf
- ufds
, timeout
);
727 for(i
= 0; i
< nb_io_handlers
; i
++) {
730 n
= read(ioh
->fd
, buf
, ioh
->max_size
);
732 ioh
->fd_read(ioh
->opaque
, buf
, n
);
737 if (gdb_ufd
&& (gdb_ufd
->revents
& POLLIN
)) {
739 /* stop emulation if requested by gdb */
740 n
= read(gdbstub_fd
, buf
, 1);
742 ret
= EXCP_INTERRUPT
;
749 if (timer_irq_pending
) {
750 #if defined (TARGET_I386)
753 timer_irq_pending
= 0;
757 /* XXX: add explicit timer */
760 /* run dma transfers, if any */
764 if (gui_refresh_pending
) {
765 display_state
.dpy_refresh(&display_state
);
766 gui_refresh_pending
= 0;
775 printf("QEMU PC emulator version " QEMU_VERSION
", Copyright (c) 2003 Fabrice Bellard\n"
776 "usage: %s [options] [disk_image]\n"
778 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
780 "Standard options:\n"
781 "-fda/-fdb file use 'file' as floppy disk 0/1 image\n"
782 "-hda/-hdb file use 'file' as IDE hard disk 0/1 image\n"
783 "-hdc/-hdd file use 'file' as IDE hard disk 2/3 image\n"
784 "-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)\n"
785 "-boot [a|b|c|d] boot on floppy (a, b), hard disk (c) or CD-ROM (d)\n"
786 "-snapshot write to temporary files instead of disk image files\n"
787 "-m megs set virtual RAM size to megs MB\n"
788 "-nographic disable graphical output and redirect serial I/Os to console\n"
791 "-n script set network init script [default=%s]\n"
792 "-nics n simulate 'n' network interfaces [default=1]\n"
793 "-tun-fd fd0[,...] use these fds as already opened tap/tun interfaces\n"
795 "Linux boot specific:\n"
796 "-kernel bzImage use 'bzImage' as kernel image\n"
797 "-append cmdline use 'cmdline' as kernel command line\n"
798 "-initrd file use 'file' as initial ram disk\n"
800 "Debug/Expert options:\n"
801 "-s wait gdb connection to port %d\n"
802 "-p port change gdb connection port\n"
803 "-d item1,... output log to %s (use -d ? for a list of log items)\n"
804 "-hdachs c,h,s force hard disk 0 geometry (usually qemu can guess it)\n"
805 "-L path set the directory for the BIOS and VGA BIOS\n"
807 "-no-code-copy disable code copy acceleration\n"
811 "During emulation, use C-a h to get terminal commands:\n",
812 #ifdef CONFIG_SOFTMMU
817 DEFAULT_NETWORK_SCRIPT
,
818 DEFAULT_GDBSTUB_PORT
,
821 #ifndef CONFIG_SOFTMMU
823 "NOTE: this version of QEMU is faster but it needs slightly patched OSes to\n"
824 "work. Please use the 'qemu' executable to have a more accurate (but slower)\n"
830 struct option long_options
[] = {
831 { "initrd", 1, NULL
, 0, },
832 { "hda", 1, NULL
, 0, },
833 { "hdb", 1, NULL
, 0, },
834 { "snapshot", 0, NULL
, 0, },
835 { "hdachs", 1, NULL
, 0, },
836 { "nographic", 0, NULL
, 0, },
837 { "kernel", 1, NULL
, 0, },
838 { "append", 1, NULL
, 0, },
839 { "tun-fd", 1, NULL
, 0, },
840 { "hdc", 1, NULL
, 0, },
841 { "hdd", 1, NULL
, 0, },
842 { "cdrom", 1, NULL
, 0, },
843 { "boot", 1, NULL
, 0, },
844 { "fda", 1, NULL
, 0, },
845 { "fdb", 1, NULL
, 0, },
846 { "no-code-copy", 0, NULL
, 0 },
847 { "nics", 1, NULL
, 0 },
848 { NULL
, 0, NULL
, 0 },
852 /* SDL use the pthreads and they modify sigaction. We don't
854 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
855 extern void __libc_sigaction();
856 #define sigaction(sig, act, oact) __libc_sigaction(sig, act, oact)
858 extern void __sigaction();
859 #define sigaction(sig, act, oact) __sigaction(sig, act, oact)
861 #endif /* CONFIG_SDL */
863 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
865 /* this stack is only used during signal handling */
866 #define SIGNAL_STACK_SIZE 32768
868 static uint8_t *signal_stack
;
872 int main(int argc
, char **argv
)
874 int c
, i
, use_gdbstub
, gdbstub_port
, long_index
, has_cdrom
;
875 int snapshot
, linux_boot
;
876 struct sigaction act
;
877 struct itimerval itv
;
879 const char *initrd_filename
;
880 const char *hd_filename
[MAX_DISKS
], *fd_filename
[MAX_FD
];
881 const char *kernel_filename
, *kernel_cmdline
;
882 DisplayState
*ds
= &display_state
;
883 int cyls
, heads
, secs
;
885 /* we never want that malloc() uses mmap() */
886 mallopt(M_MMAP_THRESHOLD
, 4096 * 1024);
887 initrd_filename
= NULL
;
888 for(i
= 0; i
< MAX_FD
; i
++)
889 fd_filename
[i
] = NULL
;
890 for(i
= 0; i
< MAX_DISKS
; i
++)
891 hd_filename
[i
] = NULL
;
892 ram_size
= 32 * 1024 * 1024;
893 vga_ram_size
= VGA_RAM_SIZE
;
894 pstrcpy(network_script
, sizeof(network_script
), DEFAULT_NETWORK_SCRIPT
);
896 gdbstub_port
= DEFAULT_GDBSTUB_PORT
;
899 kernel_filename
= NULL
;
902 cyls
= heads
= secs
= 0;
905 for(i
= 0; i
< MAX_NICS
; i
++) {
906 NetDriverState
*nd
= &nd_table
[i
];
908 /* init virtual mac address */
909 nd
->macaddr
[0] = 0x52;
910 nd
->macaddr
[1] = 0x54;
911 nd
->macaddr
[2] = 0x00;
912 nd
->macaddr
[3] = 0x12;
913 nd
->macaddr
[4] = 0x34;
914 nd
->macaddr
[5] = 0x56 + i
;
918 c
= getopt_long_only(argc
, argv
, "hm:d:n:sp:L:", long_options
, &long_index
);
925 initrd_filename
= optarg
;
928 hd_filename
[0] = optarg
;
931 hd_filename
[1] = optarg
;
940 cyls
= strtol(p
, (char **)&p
, 0);
944 heads
= strtol(p
, (char **)&p
, 0);
948 secs
= strtol(p
, (char **)&p
, 0);
959 kernel_filename
= optarg
;
962 kernel_cmdline
= optarg
;
971 fd
= strtol(p
, (char **)&p
, 0);
972 nd_table
[nb_nics
].fd
= fd
;
973 snprintf(nd_table
[nb_nics
].ifname
,
974 sizeof(nd_table
[nb_nics
].ifname
),
979 } else if (*p
!= '\0') {
980 fprintf(stderr
, "qemu: invalid fd for network interface %d\n", nb_nics
);
989 hd_filename
[2] = optarg
;
993 hd_filename
[3] = optarg
;
996 hd_filename
[2] = optarg
;
1000 boot_device
= optarg
[0];
1001 if (boot_device
!= 'a' && boot_device
!= 'b' &&
1002 boot_device
!= 'c' && boot_device
!= 'd') {
1003 fprintf(stderr
, "qemu: invalid boot device '%c'\n", boot_device
);
1008 fd_filename
[0] = optarg
;
1011 fd_filename
[1] = optarg
;
1014 code_copy_enabled
= 0;
1017 nb_nics
= atoi(optarg
);
1018 if (nb_nics
< 1 || nb_nics
> MAX_NICS
) {
1019 fprintf(stderr
, "qemu: invalid number of network interfaces\n");
1029 ram_size
= atoi(optarg
) * 1024 * 1024;
1032 if (ram_size
> PHYS_RAM_MAX_SIZE
) {
1033 fprintf(stderr
, "qemu: at most %d MB RAM can be simulated\n",
1034 PHYS_RAM_MAX_SIZE
/ (1024 * 1024));
1043 mask
= cpu_str_to_log_mask(optarg
);
1045 printf("Log items (comma separated):\n");
1046 for(item
= cpu_log_items
; item
->mask
!= 0; item
++) {
1047 printf("%-10s %s\n", item
->name
, item
->help
);
1055 pstrcpy(network_script
, sizeof(network_script
), optarg
);
1061 gdbstub_port
= atoi(optarg
);
1069 if (optind
< argc
) {
1070 hd_filename
[0] = argv
[optind
++];
1073 linux_boot
= (kernel_filename
!= NULL
);
1075 if (!linux_boot
&& hd_filename
[0] == '\0' && hd_filename
[2] == '\0' &&
1076 fd_filename
[0] == '\0')
1079 /* boot to cd by default if no hard disk */
1080 if (hd_filename
[0] == '\0' && boot_device
== 'c') {
1081 if (fd_filename
[0] != '\0')
1087 #if !defined(CONFIG_SOFTMMU)
1088 /* must avoid mmap() usage of glibc by setting a buffer "by hand" */
1090 static uint8_t stdout_buf
[4096];
1091 setvbuf(stdout
, stdout_buf
, _IOLBF
, sizeof(stdout_buf
));
1094 setvbuf(stdout
, NULL
, _IOLBF
, 0);
1097 /* init host network redirectors */
1100 /* init the memory */
1101 phys_ram_size
= ram_size
+ vga_ram_size
;
1103 #ifdef CONFIG_SOFTMMU
1104 phys_ram_base
= memalign(TARGET_PAGE_SIZE
, phys_ram_size
);
1105 if (!phys_ram_base
) {
1106 fprintf(stderr
, "Could not allocate physical memory\n");
1110 /* as we must map the same page at several addresses, we must use
1115 tmpdir
= getenv("QEMU_TMPDIR");
1118 snprintf(phys_ram_file
, sizeof(phys_ram_file
), "%s/vlXXXXXX", tmpdir
);
1119 if (mkstemp(phys_ram_file
) < 0) {
1120 fprintf(stderr
, "Could not create temporary memory file '%s'\n",
1124 phys_ram_fd
= open(phys_ram_file
, O_CREAT
| O_TRUNC
| O_RDWR
, 0600);
1125 if (phys_ram_fd
< 0) {
1126 fprintf(stderr
, "Could not open temporary memory file '%s'\n",
1130 ftruncate(phys_ram_fd
, phys_ram_size
);
1131 unlink(phys_ram_file
);
1132 phys_ram_base
= mmap(get_mmap_addr(phys_ram_size
),
1134 PROT_WRITE
| PROT_READ
, MAP_SHARED
| MAP_FIXED
,
1136 if (phys_ram_base
== MAP_FAILED
) {
1137 fprintf(stderr
, "Could not map physical memory\n");
1143 /* we always create the cdrom drive, even if no disk is there */
1145 bs_table
[2] = bdrv_new("cdrom");
1146 bdrv_set_type_hint(bs_table
[2], BDRV_TYPE_CDROM
);
1149 /* open the virtual block devices */
1150 for(i
= 0; i
< MAX_DISKS
; i
++) {
1151 if (hd_filename
[i
]) {
1154 snprintf(buf
, sizeof(buf
), "hd%c", i
+ 'a');
1155 bs_table
[i
] = bdrv_new(buf
);
1157 if (bdrv_open(bs_table
[i
], hd_filename
[i
], snapshot
) < 0) {
1158 fprintf(stderr
, "qemu: could not open hard disk image '%s\n",
1162 if (i
== 0 && cyls
!= 0)
1163 bdrv_set_geometry_hint(bs_table
[i
], cyls
, heads
, secs
);
1167 /* we always create at least one floppy disk */
1168 fd_table
[0] = bdrv_new("fda");
1169 bdrv_set_type_hint(fd_table
[0], BDRV_TYPE_FLOPPY
);
1171 for(i
= 0; i
< MAX_FD
; i
++) {
1172 if (fd_filename
[i
]) {
1175 snprintf(buf
, sizeof(buf
), "fd%c", i
+ 'a');
1176 fd_table
[i
] = bdrv_new(buf
);
1177 bdrv_set_type_hint(fd_table
[i
], BDRV_TYPE_FLOPPY
);
1179 if (fd_filename
[i
] != '\0') {
1180 if (bdrv_open(fd_table
[i
], fd_filename
[i
], snapshot
) < 0) {
1181 fprintf(stderr
, "qemu: could not open floppy disk image '%s\n",
1189 /* init CPU state */
1192 cpu_single_env
= env
;
1195 cpu_calibrate_ticks();
1199 dumb_display_init(ds
);
1202 sdl_display_init(ds
);
1204 dumb_display_init(ds
);
1208 #if defined(TARGET_I386)
1209 pc_init(ram_size
, vga_ram_size
, boot_device
,
1210 ds
, fd_filename
, snapshot
,
1211 kernel_filename
, kernel_cmdline
, initrd_filename
);
1212 #elif defined(TARGET_PPC)
1216 /* launched after the device init so that it can display or not a
1220 /* setup cpu signal handlers for MMU / self modifying code handling */
1221 #if !defined(CONFIG_SOFTMMU)
1223 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1226 signal_stack
= malloc(SIGNAL_STACK_SIZE
);
1227 stk
.ss_sp
= signal_stack
;
1228 stk
.ss_size
= SIGNAL_STACK_SIZE
;
1231 if (sigaltstack(&stk
, NULL
) < 0) {
1232 perror("sigaltstack");
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_segv_handler
;
1244 sigaction(SIGSEGV
, &act
, NULL
);
1245 sigaction(SIGBUS
, &act
, NULL
);
1246 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1247 sigaction(SIGFPE
, &act
, NULL
);
1252 sigfillset(&act
.sa_mask
);
1253 act
.sa_flags
= SA_SIGINFO
;
1254 #if defined (TARGET_I386) && defined(USE_CODE_COPY)
1255 act
.sa_flags
|= SA_ONSTACK
;
1257 act
.sa_sigaction
= host_alarm_handler
;
1258 sigaction(SIGALRM
, &act
, NULL
);
1260 itv
.it_interval
.tv_sec
= 0;
1261 itv
.it_interval
.tv_usec
= 1000;
1262 itv
.it_value
.tv_sec
= 0;
1263 itv
.it_value
.tv_usec
= 10 * 1000;
1264 setitimer(ITIMER_REAL
, &itv
, NULL
);
1265 /* we probe the tick duration of the kernel to inform the user if
1266 the emulated kernel requested a too high timer frequency */
1267 getitimer(ITIMER_REAL
, &itv
);
1268 timer_ms
= itv
.it_interval
.tv_usec
/ 1000;
1269 pit_min_timer_count
= ((uint64_t)itv
.it_interval
.tv_usec
* PIT_FREQ
) /
1273 cpu_gdbstub(NULL
, main_loop
, gdbstub_port
);