4 * Copyright (c) 2003-2008 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
32 /* Needed early for HOST_BSD etc. */
33 #include "config-host.h"
37 #include <sys/times.h>
41 #include <sys/ioctl.h>
42 #include <sys/resource.h>
43 #include <sys/socket.h>
44 #include <netinet/in.h>
46 #if defined(__NetBSD__)
47 #include <net/if_tap.h>
50 #include <linux/if_tun.h>
52 #include <arpa/inet.h>
55 #include <sys/select.h>
58 #if defined(__FreeBSD__) || defined(__DragonFly__)
63 #elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
64 #include <freebsd/stdlib.h>
69 #include <linux/rtc.h>
71 /* For the benefit of older linux systems which don't supply it,
72 we use a local copy of hpet.h. */
73 /* #include <linux/hpet.h> */
76 #include <linux/ppdev.h>
77 #include <linux/parport.h>
81 #include <sys/ethernet.h>
82 #include <sys/sockio.h>
83 #include <netinet/arp.h>
84 #include <netinet/in.h>
85 #include <netinet/in_systm.h>
86 #include <netinet/ip.h>
87 #include <netinet/ip_icmp.h> // must come after ip.h
88 #include <netinet/udp.h>
89 #include <netinet/tcp.h>
97 #if defined(__OpenBSD__)
101 #if defined(CONFIG_VDE)
102 #include <libvdeplug.h>
108 #include <sys/timeb.h>
109 #include <mmsystem.h>
110 #define getopt_long_only getopt_long
111 #define memalign(align, size) malloc(size)
117 int qemu_main(int argc, char **argv, char **envp);
118 int main(int argc, char **argv)
120 qemu_main(argc, argv, NULL);
123 #define main qemu_main
125 #endif /* CONFIG_SDL */
129 #define main qemu_main
130 #endif /* CONFIG_COCOA */
133 #include "hw/boards.h"
135 #include "hw/pcmcia.h"
137 #include "hw/audiodev.h"
141 #include "hw/smbios.h"
149 #include "qemu-timer.h"
150 #include "qemu-char.h"
151 #include "cache-utils.h"
154 #include "audio/audio.h"
155 #include "migration.h"
161 #include "exec-all.h"
163 #include "qemu_socket.h"
165 #if defined(CONFIG_SLIRP)
166 #include "libslirp.h"
169 //#define DEBUG_UNUSED_IOPORT
170 //#define DEBUG_IOPORT
172 //#define DEBUG_SLIRP
176 # define LOG_IOPORT(...) qemu_log_mask(CPU_LOG_IOPORT, ## __VA_ARGS__)
178 # define LOG_IOPORT(...) do { } while (0)
181 #define DEFAULT_RAM_SIZE 128
183 /* Max number of USB devices that can be specified on the commandline. */
184 #define MAX_USB_CMDLINE 8
186 /* Max number of bluetooth switches on the commandline. */
187 #define MAX_BT_CMDLINE 10
189 /* XXX: use a two level table to limit memory usage */
190 #define MAX_IOPORTS 65536
192 const char *bios_dir = CONFIG_QEMU_SHAREDIR;
193 const char *bios_name = NULL;
194 static void *ioport_opaque[MAX_IOPORTS];
195 static IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
196 static IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
197 /* Note: drives_table[MAX_DRIVES] is a dummy block driver if none available
198 to store the VM snapshots */
199 DriveInfo drives_table[MAX_DRIVES+1];
201 static int vga_ram_size;
202 enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
203 static DisplayState *display_state;
207 const char* keyboard_layout = NULL;
208 int64_t ticks_per_sec;
211 NICInfo nd_table[MAX_NICS];
213 static int autostart;
214 static int rtc_utc = 1;
215 static int rtc_date_offset = -1; /* -1 means no change */
216 int cirrus_vga_enabled = 1;
217 int std_vga_enabled = 0;
218 int vmsvga_enabled = 0;
219 int xenfb_enabled = 0;
221 int graphic_width = 1024;
222 int graphic_height = 768;
223 int graphic_depth = 8;
225 int graphic_width = 800;
226 int graphic_height = 600;
227 int graphic_depth = 15;
229 static int full_screen = 0;
231 static int no_frame = 0;
234 CharDriverState *serial_hds[MAX_SERIAL_PORTS];
235 CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
236 CharDriverState *virtcon_hds[MAX_VIRTIO_CONSOLES];
238 int win2k_install_hack = 0;
244 const char *vnc_display;
245 int acpi_enabled = 1;
251 int graphic_rotate = 0;
255 const char *option_rom[MAX_OPTION_ROMS];
257 int semihosting_enabled = 0;
261 const char *qemu_name;
263 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
264 unsigned int nb_prom_envs = 0;
265 const char *prom_envs[MAX_PROM_ENVS];
268 struct drive_opt drives_opt[MAX_DRIVES];
271 uint64_t node_mem[MAX_NODES];
272 uint64_t node_cpumask[MAX_NODES];
274 static CPUState *cur_cpu;
275 static CPUState *next_cpu;
276 static int timer_alarm_pending = 1;
277 /* Conversion factor from emulated instructions to virtual clock ticks. */
278 static int icount_time_shift;
279 /* Arbitrarily pick 1MIPS as the minimum allowable speed. */
280 #define MAX_ICOUNT_SHIFT 10
281 /* Compensate for varying guest execution speed. */
282 static int64_t qemu_icount_bias;
283 static QEMUTimer *icount_rt_timer;
284 static QEMUTimer *icount_vm_timer;
285 static QEMUTimer *nographic_timer;
287 uint8_t qemu_uuid[16];
289 /***********************************************************/
290 /* x86 ISA bus support */
292 target_phys_addr_t isa_mem_base = 0;
295 static IOPortReadFunc default_ioport_readb, default_ioport_readw, default_ioport_readl;
296 static IOPortWriteFunc default_ioport_writeb, default_ioport_writew, default_ioport_writel;
298 static uint32_t ioport_read(int index, uint32_t address)
300 static IOPortReadFunc *default_func[3] = {
301 default_ioport_readb,
302 default_ioport_readw,
305 IOPortReadFunc *func = ioport_read_table[index][address];
307 func = default_func[index];
308 return func(ioport_opaque[address], address);
311 static void ioport_write(int index, uint32_t address, uint32_t data)
313 static IOPortWriteFunc *default_func[3] = {
314 default_ioport_writeb,
315 default_ioport_writew,
316 default_ioport_writel
318 IOPortWriteFunc *func = ioport_write_table[index][address];
320 func = default_func[index];
321 func(ioport_opaque[address], address, data);
324 static uint32_t default_ioport_readb(void *opaque, uint32_t address)
326 #ifdef DEBUG_UNUSED_IOPORT
327 fprintf(stderr, "unused inb: port=0x%04x\n", address);
332 static void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
334 #ifdef DEBUG_UNUSED_IOPORT
335 fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
339 /* default is to make two byte accesses */
340 static uint32_t default_ioport_readw(void *opaque, uint32_t address)
343 data = ioport_read(0, address);
344 address = (address + 1) & (MAX_IOPORTS - 1);
345 data |= ioport_read(0, address) << 8;
349 static void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
351 ioport_write(0, address, data & 0xff);
352 address = (address + 1) & (MAX_IOPORTS - 1);
353 ioport_write(0, address, (data >> 8) & 0xff);
356 static uint32_t default_ioport_readl(void *opaque, uint32_t address)
358 #ifdef DEBUG_UNUSED_IOPORT
359 fprintf(stderr, "unused inl: port=0x%04x\n", address);
364 static void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
366 #ifdef DEBUG_UNUSED_IOPORT
367 fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
371 /* size is the word size in byte */
372 int register_ioport_read(int start, int length, int size,
373 IOPortReadFunc *func, void *opaque)
379 } else if (size == 2) {
381 } else if (size == 4) {
384 hw_error("register_ioport_read: invalid size");
387 for(i = start; i < start + length; i += size) {
388 ioport_read_table[bsize][i] = func;
389 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
390 hw_error("register_ioport_read: invalid opaque");
391 ioport_opaque[i] = opaque;
396 /* size is the word size in byte */
397 int register_ioport_write(int start, int length, int size,
398 IOPortWriteFunc *func, void *opaque)
404 } else if (size == 2) {
406 } else if (size == 4) {
409 hw_error("register_ioport_write: invalid size");
412 for(i = start; i < start + length; i += size) {
413 ioport_write_table[bsize][i] = func;
414 if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
415 hw_error("register_ioport_write: invalid opaque");
416 ioport_opaque[i] = opaque;
421 void isa_unassign_ioport(int start, int length)
425 for(i = start; i < start + length; i++) {
426 ioport_read_table[0][i] = default_ioport_readb;
427 ioport_read_table[1][i] = default_ioport_readw;
428 ioport_read_table[2][i] = default_ioport_readl;
430 ioport_write_table[0][i] = default_ioport_writeb;
431 ioport_write_table[1][i] = default_ioport_writew;
432 ioport_write_table[2][i] = default_ioport_writel;
434 ioport_opaque[i] = NULL;
438 /***********************************************************/
440 void cpu_outb(CPUState *env, int addr, int val)
442 LOG_IOPORT("outb: %04x %02x\n", addr, val);
443 ioport_write(0, addr, val);
446 env->last_io_time = cpu_get_time_fast();
450 void cpu_outw(CPUState *env, int addr, int val)
452 LOG_IOPORT("outw: %04x %04x\n", addr, val);
453 ioport_write(1, addr, val);
456 env->last_io_time = cpu_get_time_fast();
460 void cpu_outl(CPUState *env, int addr, int val)
462 LOG_IOPORT("outl: %04x %08x\n", addr, val);
463 ioport_write(2, addr, val);
466 env->last_io_time = cpu_get_time_fast();
470 int cpu_inb(CPUState *env, int addr)
473 val = ioport_read(0, addr);
474 LOG_IOPORT("inb : %04x %02x\n", addr, val);
477 env->last_io_time = cpu_get_time_fast();
482 int cpu_inw(CPUState *env, int addr)
485 val = ioport_read(1, addr);
486 LOG_IOPORT("inw : %04x %04x\n", addr, val);
489 env->last_io_time = cpu_get_time_fast();
494 int cpu_inl(CPUState *env, int addr)
497 val = ioport_read(2, addr);
498 LOG_IOPORT("inl : %04x %08x\n", addr, val);
501 env->last_io_time = cpu_get_time_fast();
506 /***********************************************************/
507 void hw_error(const char *fmt, ...)
513 fprintf(stderr, "qemu: hardware error: ");
514 vfprintf(stderr, fmt, ap);
515 fprintf(stderr, "\n");
516 for(env = first_cpu; env != NULL; env = env->next_cpu) {
517 fprintf(stderr, "CPU #%d:\n", env->cpu_index);
519 cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
521 cpu_dump_state(env, stderr, fprintf, 0);
531 static QEMUBalloonEvent *qemu_balloon_event;
532 void *qemu_balloon_event_opaque;
534 void qemu_add_balloon_handler(QEMUBalloonEvent *func, void *opaque)
536 qemu_balloon_event = func;
537 qemu_balloon_event_opaque = opaque;
540 void qemu_balloon(ram_addr_t target)
542 if (qemu_balloon_event)
543 qemu_balloon_event(qemu_balloon_event_opaque, target);
546 ram_addr_t qemu_balloon_status(void)
548 if (qemu_balloon_event)
549 return qemu_balloon_event(qemu_balloon_event_opaque, 0);
553 /***********************************************************/
556 static QEMUPutKBDEvent *qemu_put_kbd_event;
557 static void *qemu_put_kbd_event_opaque;
558 static QEMUPutMouseEntry *qemu_put_mouse_event_head;
559 static QEMUPutMouseEntry *qemu_put_mouse_event_current;
561 void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
563 qemu_put_kbd_event_opaque = opaque;
564 qemu_put_kbd_event = func;
567 QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
568 void *opaque, int absolute,
571 QEMUPutMouseEntry *s, *cursor;
573 s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
575 s->qemu_put_mouse_event = func;
576 s->qemu_put_mouse_event_opaque = opaque;
577 s->qemu_put_mouse_event_absolute = absolute;
578 s->qemu_put_mouse_event_name = qemu_strdup(name);
581 if (!qemu_put_mouse_event_head) {
582 qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
586 cursor = qemu_put_mouse_event_head;
587 while (cursor->next != NULL)
588 cursor = cursor->next;
591 qemu_put_mouse_event_current = s;
596 void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
598 QEMUPutMouseEntry *prev = NULL, *cursor;
600 if (!qemu_put_mouse_event_head || entry == NULL)
603 cursor = qemu_put_mouse_event_head;
604 while (cursor != NULL && cursor != entry) {
606 cursor = cursor->next;
609 if (cursor == NULL) // does not exist or list empty
611 else if (prev == NULL) { // entry is head
612 qemu_put_mouse_event_head = cursor->next;
613 if (qemu_put_mouse_event_current == entry)
614 qemu_put_mouse_event_current = cursor->next;
615 qemu_free(entry->qemu_put_mouse_event_name);
620 prev->next = entry->next;
622 if (qemu_put_mouse_event_current == entry)
623 qemu_put_mouse_event_current = prev;
625 qemu_free(entry->qemu_put_mouse_event_name);
629 void kbd_put_keycode(int keycode)
631 if (qemu_put_kbd_event) {
632 qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
636 void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
638 QEMUPutMouseEvent *mouse_event;
639 void *mouse_event_opaque;
642 if (!qemu_put_mouse_event_current) {
647 qemu_put_mouse_event_current->qemu_put_mouse_event;
649 qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;
652 if (graphic_rotate) {
653 if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
656 width = graphic_width - 1;
657 mouse_event(mouse_event_opaque,
658 width - dy, dx, dz, buttons_state);
660 mouse_event(mouse_event_opaque,
661 dx, dy, dz, buttons_state);
665 int kbd_mouse_is_absolute(void)
667 if (!qemu_put_mouse_event_current)
670 return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
673 void do_info_mice(Monitor *mon)
675 QEMUPutMouseEntry *cursor;
678 if (!qemu_put_mouse_event_head) {
679 monitor_printf(mon, "No mouse devices connected\n");
683 monitor_printf(mon, "Mouse devices available:\n");
684 cursor = qemu_put_mouse_event_head;
685 while (cursor != NULL) {
686 monitor_printf(mon, "%c Mouse #%d: %s\n",
687 (cursor == qemu_put_mouse_event_current ? '*' : ' '),
688 index, cursor->qemu_put_mouse_event_name);
690 cursor = cursor->next;
694 void do_mouse_set(Monitor *mon, int index)
696 QEMUPutMouseEntry *cursor;
699 if (!qemu_put_mouse_event_head) {
700 monitor_printf(mon, "No mouse devices connected\n");
704 cursor = qemu_put_mouse_event_head;
705 while (cursor != NULL && index != i) {
707 cursor = cursor->next;
711 qemu_put_mouse_event_current = cursor;
713 monitor_printf(mon, "Mouse at given index not found\n");
716 /* compute with 96 bit intermediate result: (a*b)/c */
717 uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
722 #ifdef WORDS_BIGENDIAN
732 rl = (uint64_t)u.l.low * (uint64_t)b;
733 rh = (uint64_t)u.l.high * (uint64_t)b;
736 res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
740 /***********************************************************/
741 /* real time host monotonic timer */
743 #define QEMU_TIMER_BASE 1000000000LL
747 static int64_t clock_freq;
749 static void init_get_clock(void)
753 ret = QueryPerformanceFrequency(&freq);
755 fprintf(stderr, "Could not calibrate ticks\n");
758 clock_freq = freq.QuadPart;
761 static int64_t get_clock(void)
764 QueryPerformanceCounter(&ti);
765 return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
770 static int use_rt_clock;
772 static void init_get_clock(void)
775 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
776 || defined(__DragonFly__)
779 if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
786 static int64_t get_clock(void)
788 #if defined(__linux__) || (defined(__FreeBSD__) && __FreeBSD_version >= 500000) \
789 || defined(__DragonFly__)
792 clock_gettime(CLOCK_MONOTONIC, &ts);
793 return ts.tv_sec * 1000000000LL + ts.tv_nsec;
797 /* XXX: using gettimeofday leads to problems if the date
798 changes, so it should be avoided. */
800 gettimeofday(&tv, NULL);
801 return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
806 /* Return the virtual CPU time, based on the instruction counter. */
807 static int64_t cpu_get_icount(void)
810 CPUState *env = cpu_single_env;;
811 icount = qemu_icount;
814 fprintf(stderr, "Bad clock read\n");
815 icount -= (env->icount_decr.u16.low + env->icount_extra);
817 return qemu_icount_bias + (icount << icount_time_shift);
820 /***********************************************************/
821 /* guest cycle counter */
823 static int64_t cpu_ticks_prev;
824 static int64_t cpu_ticks_offset;
825 static int64_t cpu_clock_offset;
826 static int cpu_ticks_enabled;
828 /* return the host CPU cycle counter and handle stop/restart */
829 int64_t cpu_get_ticks(void)
832 return cpu_get_icount();
834 if (!cpu_ticks_enabled) {
835 return cpu_ticks_offset;
838 ticks = cpu_get_real_ticks();
839 if (cpu_ticks_prev > ticks) {
840 /* Note: non increasing ticks may happen if the host uses
842 cpu_ticks_offset += cpu_ticks_prev - ticks;
844 cpu_ticks_prev = ticks;
845 return ticks + cpu_ticks_offset;
849 /* return the host CPU monotonic timer and handle stop/restart */
850 static int64_t cpu_get_clock(void)
853 if (!cpu_ticks_enabled) {
854 return cpu_clock_offset;
857 return ti + cpu_clock_offset;
861 /* enable cpu_get_ticks() */
862 void cpu_enable_ticks(void)
864 if (!cpu_ticks_enabled) {
865 cpu_ticks_offset -= cpu_get_real_ticks();
866 cpu_clock_offset -= get_clock();
867 cpu_ticks_enabled = 1;
871 /* disable cpu_get_ticks() : the clock is stopped. You must not call
872 cpu_get_ticks() after that. */
873 void cpu_disable_ticks(void)
875 if (cpu_ticks_enabled) {
876 cpu_ticks_offset = cpu_get_ticks();
877 cpu_clock_offset = cpu_get_clock();
878 cpu_ticks_enabled = 0;
882 /***********************************************************/
885 #define QEMU_TIMER_REALTIME 0
886 #define QEMU_TIMER_VIRTUAL 1
890 /* XXX: add frequency */
898 struct QEMUTimer *next;
901 struct qemu_alarm_timer {
905 int (*start)(struct qemu_alarm_timer *t);
906 void (*stop)(struct qemu_alarm_timer *t);
907 void (*rearm)(struct qemu_alarm_timer *t);
911 #define ALARM_FLAG_DYNTICKS 0x1
912 #define ALARM_FLAG_EXPIRED 0x2
914 static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
916 return t->flags & ALARM_FLAG_DYNTICKS;
919 static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
921 if (!alarm_has_dynticks(t))
927 /* TODO: MIN_TIMER_REARM_US should be optimized */
928 #define MIN_TIMER_REARM_US 250
930 static struct qemu_alarm_timer *alarm_timer;
934 struct qemu_alarm_win32 {
937 } alarm_win32_data = {0, -1};
939 static int win32_start_timer(struct qemu_alarm_timer *t);
940 static void win32_stop_timer(struct qemu_alarm_timer *t);
941 static void win32_rearm_timer(struct qemu_alarm_timer *t);
945 static int unix_start_timer(struct qemu_alarm_timer *t);
946 static void unix_stop_timer(struct qemu_alarm_timer *t);
950 static int dynticks_start_timer(struct qemu_alarm_timer *t);
951 static void dynticks_stop_timer(struct qemu_alarm_timer *t);
952 static void dynticks_rearm_timer(struct qemu_alarm_timer *t);
954 static int hpet_start_timer(struct qemu_alarm_timer *t);
955 static void hpet_stop_timer(struct qemu_alarm_timer *t);
957 static int rtc_start_timer(struct qemu_alarm_timer *t);
958 static void rtc_stop_timer(struct qemu_alarm_timer *t);
960 #endif /* __linux__ */
964 /* Correlation between real and virtual time is always going to be
965 fairly approximate, so ignore small variation.
966 When the guest is idle real and virtual time will be aligned in
968 #define ICOUNT_WOBBLE (QEMU_TIMER_BASE / 10)
970 static void icount_adjust(void)
975 static int64_t last_delta;
976 /* If the VM is not running, then do nothing. */
980 cur_time = cpu_get_clock();
981 cur_icount = qemu_get_clock(vm_clock);
982 delta = cur_icount - cur_time;
983 /* FIXME: This is a very crude algorithm, somewhat prone to oscillation. */
985 && last_delta + ICOUNT_WOBBLE < delta * 2
986 && icount_time_shift > 0) {
987 /* The guest is getting too far ahead. Slow time down. */
991 && last_delta - ICOUNT_WOBBLE > delta * 2
992 && icount_time_shift < MAX_ICOUNT_SHIFT) {
993 /* The guest is getting too far behind. Speed time up. */
997 qemu_icount_bias = cur_icount - (qemu_icount << icount_time_shift);
1000 static void icount_adjust_rt(void * opaque)
1002 qemu_mod_timer(icount_rt_timer,
1003 qemu_get_clock(rt_clock) + 1000);
1007 static void icount_adjust_vm(void * opaque)
1009 qemu_mod_timer(icount_vm_timer,
1010 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
1014 static void init_icount_adjust(void)
1016 /* Have both realtime and virtual time triggers for speed adjustment.
1017 The realtime trigger catches emulated time passing too slowly,
1018 the virtual time trigger catches emulated time passing too fast.
1019 Realtime triggers occur even when idle, so use them less frequently
1020 than VM triggers. */
1021 icount_rt_timer = qemu_new_timer(rt_clock, icount_adjust_rt, NULL);
1022 qemu_mod_timer(icount_rt_timer,
1023 qemu_get_clock(rt_clock) + 1000);
1024 icount_vm_timer = qemu_new_timer(vm_clock, icount_adjust_vm, NULL);
1025 qemu_mod_timer(icount_vm_timer,
1026 qemu_get_clock(vm_clock) + QEMU_TIMER_BASE / 10);
1029 static struct qemu_alarm_timer alarm_timers[] = {
1032 {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
1033 dynticks_stop_timer, dynticks_rearm_timer, NULL},
1034 /* HPET - if available - is preferred */
1035 {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
1036 /* ...otherwise try RTC */
1037 {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
1039 {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
1041 {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
1042 win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
1043 {"win32", 0, win32_start_timer,
1044 win32_stop_timer, NULL, &alarm_win32_data},
1049 static void show_available_alarms(void)
1053 printf("Available alarm timers, in order of precedence:\n");
1054 for (i = 0; alarm_timers[i].name; i++)
1055 printf("%s\n", alarm_timers[i].name);
1058 static void configure_alarms(char const *opt)
1062 int count = ARRAY_SIZE(alarm_timers) - 1;
1065 struct qemu_alarm_timer tmp;
1067 if (!strcmp(opt, "?")) {
1068 show_available_alarms();
1074 /* Reorder the array */
1075 name = strtok(arg, ",");
1077 for (i = 0; i < count && alarm_timers[i].name; i++) {
1078 if (!strcmp(alarm_timers[i].name, name))
1083 fprintf(stderr, "Unknown clock %s\n", name);
1092 tmp = alarm_timers[i];
1093 alarm_timers[i] = alarm_timers[cur];
1094 alarm_timers[cur] = tmp;
1098 name = strtok(NULL, ",");
1104 /* Disable remaining timers */
1105 for (i = cur; i < count; i++)
1106 alarm_timers[i].name = NULL;
1108 show_available_alarms();
1113 QEMUClock *rt_clock;
1114 QEMUClock *vm_clock;
1116 static QEMUTimer *active_timers[2];
1118 static QEMUClock *qemu_new_clock(int type)
1121 clock = qemu_mallocz(sizeof(QEMUClock));
1126 QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
1130 ts = qemu_mallocz(sizeof(QEMUTimer));
1133 ts->opaque = opaque;
1137 void qemu_free_timer(QEMUTimer *ts)
1142 /* stop a timer, but do not dealloc it */
1143 void qemu_del_timer(QEMUTimer *ts)
1147 /* NOTE: this code must be signal safe because
1148 qemu_timer_expired() can be called from a signal. */
1149 pt = &active_timers[ts->clock->type];
1162 /* modify the current timer so that it will be fired when current_time
1163 >= expire_time. The corresponding callback will be called. */
1164 void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
1170 /* add the timer in the sorted list */
1171 /* NOTE: this code must be signal safe because
1172 qemu_timer_expired() can be called from a signal. */
1173 pt = &active_timers[ts->clock->type];
1178 if (t->expire_time > expire_time)
1182 ts->expire_time = expire_time;
1186 /* Rearm if necessary */
1187 if (pt == &active_timers[ts->clock->type]) {
1188 if ((alarm_timer->flags & ALARM_FLAG_EXPIRED) == 0) {
1189 qemu_rearm_alarm_timer(alarm_timer);
1191 /* Interrupt execution to force deadline recalculation. */
1193 qemu_notify_event();
1197 int qemu_timer_pending(QEMUTimer *ts)
1200 for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
1207 static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
1211 return (timer_head->expire_time <= current_time);
1214 static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
1220 if (!ts || ts->expire_time > current_time)
1222 /* remove timer from the list before calling the callback */
1223 *ptimer_head = ts->next;
1226 /* run the callback (the timer list can be modified) */
1231 int64_t qemu_get_clock(QEMUClock *clock)
1233 switch(clock->type) {
1234 case QEMU_TIMER_REALTIME:
1235 return get_clock() / 1000000;
1237 case QEMU_TIMER_VIRTUAL:
1239 return cpu_get_icount();
1241 return cpu_get_clock();
1246 static void init_timers(void)
1249 ticks_per_sec = QEMU_TIMER_BASE;
1250 rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
1251 vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
1255 void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
1257 uint64_t expire_time;
1259 if (qemu_timer_pending(ts)) {
1260 expire_time = ts->expire_time;
1264 qemu_put_be64(f, expire_time);
1267 void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
1269 uint64_t expire_time;
1271 expire_time = qemu_get_be64(f);
1272 if (expire_time != -1) {
1273 qemu_mod_timer(ts, expire_time);
1279 static void timer_save(QEMUFile *f, void *opaque)
1281 if (cpu_ticks_enabled) {
1282 hw_error("cannot save state if virtual timers are running");
1284 qemu_put_be64(f, cpu_ticks_offset);
1285 qemu_put_be64(f, ticks_per_sec);
1286 qemu_put_be64(f, cpu_clock_offset);
1289 static int timer_load(QEMUFile *f, void *opaque, int version_id)
1291 if (version_id != 1 && version_id != 2)
1293 if (cpu_ticks_enabled) {
1296 cpu_ticks_offset=qemu_get_be64(f);
1297 ticks_per_sec=qemu_get_be64(f);
1298 if (version_id == 2) {
1299 cpu_clock_offset=qemu_get_be64(f);
1304 static void qemu_event_increment(void);
1307 static void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg,
1308 DWORD_PTR dwUser, DWORD_PTR dw1,
1311 static void host_alarm_handler(int host_signum)
1315 #define DISP_FREQ 1000
1317 static int64_t delta_min = INT64_MAX;
1318 static int64_t delta_max, delta_cum, last_clock, delta, ti;
1320 ti = qemu_get_clock(vm_clock);
1321 if (last_clock != 0) {
1322 delta = ti - last_clock;
1323 if (delta < delta_min)
1325 if (delta > delta_max)
1328 if (++count == DISP_FREQ) {
1329 printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
1330 muldiv64(delta_min, 1000000, ticks_per_sec),
1331 muldiv64(delta_max, 1000000, ticks_per_sec),
1332 muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
1333 (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
1335 delta_min = INT64_MAX;
1343 if (alarm_has_dynticks(alarm_timer) ||
1345 qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
1346 qemu_get_clock(vm_clock))) ||
1347 qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
1348 qemu_get_clock(rt_clock))) {
1349 qemu_event_increment();
1350 alarm_timer->flags |= ALARM_FLAG_EXPIRED;
1352 #ifndef CONFIG_IOTHREAD
1354 /* stop the currently executing cpu because a timer occured */
1357 if (next_cpu->kqemu_enabled) {
1358 kqemu_cpu_interrupt(next_cpu);
1363 timer_alarm_pending = 1;
1364 qemu_notify_event();
1368 static int64_t qemu_next_deadline(void)
1372 if (active_timers[QEMU_TIMER_VIRTUAL]) {
1373 delta = active_timers[QEMU_TIMER_VIRTUAL]->expire_time -
1374 qemu_get_clock(vm_clock);
1376 /* To avoid problems with overflow limit this to 2^32. */
1386 #if defined(__linux__) || defined(_WIN32)
1387 static uint64_t qemu_next_deadline_dyntick(void)
1395 delta = (qemu_next_deadline() + 999) / 1000;
1397 if (active_timers[QEMU_TIMER_REALTIME]) {
1398 rtdelta = (active_timers[QEMU_TIMER_REALTIME]->expire_time -
1399 qemu_get_clock(rt_clock))*1000;
1400 if (rtdelta < delta)
1404 if (delta < MIN_TIMER_REARM_US)
1405 delta = MIN_TIMER_REARM_US;
1413 /* Sets a specific flag */
1414 static int fcntl_setfl(int fd, int flag)
1418 flags = fcntl(fd, F_GETFL);
1422 if (fcntl(fd, F_SETFL, flags | flag) == -1)
1428 #if defined(__linux__)
1430 #define RTC_FREQ 1024
1432 static void enable_sigio_timer(int fd)
1434 struct sigaction act;
1437 sigfillset(&act.sa_mask);
1439 act.sa_handler = host_alarm_handler;
1441 sigaction(SIGIO, &act, NULL);
1442 fcntl_setfl(fd, O_ASYNC);
1443 fcntl(fd, F_SETOWN, getpid());
1446 static int hpet_start_timer(struct qemu_alarm_timer *t)
1448 struct hpet_info info;
1451 fd = open("/dev/hpet", O_RDONLY);
1456 r = ioctl(fd, HPET_IRQFREQ, RTC_FREQ);
1458 fprintf(stderr, "Could not configure '/dev/hpet' to have a 1024Hz timer. This is not a fatal\n"
1459 "error, but for better emulation accuracy type:\n"
1460 "'echo 1024 > /proc/sys/dev/hpet/max-user-freq' as root.\n");
1464 /* Check capabilities */
1465 r = ioctl(fd, HPET_INFO, &info);
1469 /* Enable periodic mode */
1470 r = ioctl(fd, HPET_EPI, 0);
1471 if (info.hi_flags && (r < 0))
1474 /* Enable interrupt */
1475 r = ioctl(fd, HPET_IE_ON, 0);
1479 enable_sigio_timer(fd);
1480 t->priv = (void *)(long)fd;
1488 static void hpet_stop_timer(struct qemu_alarm_timer *t)
1490 int fd = (long)t->priv;
1495 static int rtc_start_timer(struct qemu_alarm_timer *t)
1498 unsigned long current_rtc_freq = 0;
1500 TFR(rtc_fd = open("/dev/rtc", O_RDONLY));
1503 ioctl(rtc_fd, RTC_IRQP_READ, ¤t_rtc_freq);
1504 if (current_rtc_freq != RTC_FREQ &&
1505 ioctl(rtc_fd, RTC_IRQP_SET, RTC_FREQ) < 0) {
1506 fprintf(stderr, "Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal\n"
1507 "error, but for better emulation accuracy either use a 2.6 host Linux kernel or\n"
1508 "type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.\n");
1511 if (ioctl(rtc_fd, RTC_PIE_ON, 0) < 0) {
1517 enable_sigio_timer(rtc_fd);
1519 t->priv = (void *)(long)rtc_fd;
1524 static void rtc_stop_timer(struct qemu_alarm_timer *t)
1526 int rtc_fd = (long)t->priv;
1531 static int dynticks_start_timer(struct qemu_alarm_timer *t)
1535 struct sigaction act;
1537 sigfillset(&act.sa_mask);
1539 act.sa_handler = host_alarm_handler;
1541 sigaction(SIGALRM, &act, NULL);
1543 ev.sigev_value.sival_int = 0;
1544 ev.sigev_notify = SIGEV_SIGNAL;
1545 ev.sigev_signo = SIGALRM;
1547 if (timer_create(CLOCK_REALTIME, &ev, &host_timer)) {
1548 perror("timer_create");
1550 /* disable dynticks */
1551 fprintf(stderr, "Dynamic Ticks disabled\n");
1556 t->priv = (void *)(long)host_timer;
1561 static void dynticks_stop_timer(struct qemu_alarm_timer *t)
1563 timer_t host_timer = (timer_t)(long)t->priv;
1565 timer_delete(host_timer);
1568 static void dynticks_rearm_timer(struct qemu_alarm_timer *t)
1570 timer_t host_timer = (timer_t)(long)t->priv;
1571 struct itimerspec timeout;
1572 int64_t nearest_delta_us = INT64_MAX;
1575 if (!active_timers[QEMU_TIMER_REALTIME] &&
1576 !active_timers[QEMU_TIMER_VIRTUAL])
1579 nearest_delta_us = qemu_next_deadline_dyntick();
1581 /* check whether a timer is already running */
1582 if (timer_gettime(host_timer, &timeout)) {
1584 fprintf(stderr, "Internal timer error: aborting\n");
1587 current_us = timeout.it_value.tv_sec * 1000000 + timeout.it_value.tv_nsec/1000;
1588 if (current_us && current_us <= nearest_delta_us)
1591 timeout.it_interval.tv_sec = 0;
1592 timeout.it_interval.tv_nsec = 0; /* 0 for one-shot timer */
1593 timeout.it_value.tv_sec = nearest_delta_us / 1000000;
1594 timeout.it_value.tv_nsec = (nearest_delta_us % 1000000) * 1000;
1595 if (timer_settime(host_timer, 0 /* RELATIVE */, &timeout, NULL)) {
1597 fprintf(stderr, "Internal timer error: aborting\n");
1602 #endif /* defined(__linux__) */
1604 static int unix_start_timer(struct qemu_alarm_timer *t)
1606 struct sigaction act;
1607 struct itimerval itv;
1611 sigfillset(&act.sa_mask);
1613 act.sa_handler = host_alarm_handler;
1615 sigaction(SIGALRM, &act, NULL);
1617 itv.it_interval.tv_sec = 0;
1618 /* for i386 kernel 2.6 to get 1 ms */
1619 itv.it_interval.tv_usec = 999;
1620 itv.it_value.tv_sec = 0;
1621 itv.it_value.tv_usec = 10 * 1000;
1623 err = setitimer(ITIMER_REAL, &itv, NULL);
1630 static void unix_stop_timer(struct qemu_alarm_timer *t)
1632 struct itimerval itv;
1634 memset(&itv, 0, sizeof(itv));
1635 setitimer(ITIMER_REAL, &itv, NULL);
1638 #endif /* !defined(_WIN32) */
1643 static int win32_start_timer(struct qemu_alarm_timer *t)
1646 struct qemu_alarm_win32 *data = t->priv;
1649 memset(&tc, 0, sizeof(tc));
1650 timeGetDevCaps(&tc, sizeof(tc));
1652 if (data->period < tc.wPeriodMin)
1653 data->period = tc.wPeriodMin;
1655 timeBeginPeriod(data->period);
1657 flags = TIME_CALLBACK_FUNCTION;
1658 if (alarm_has_dynticks(t))
1659 flags |= TIME_ONESHOT;
1661 flags |= TIME_PERIODIC;
1663 data->timerId = timeSetEvent(1, // interval (ms)
1664 data->period, // resolution
1665 host_alarm_handler, // function
1666 (DWORD)t, // parameter
1669 if (!data->timerId) {
1670 perror("Failed to initialize win32 alarm timer");
1671 timeEndPeriod(data->period);
1678 static void win32_stop_timer(struct qemu_alarm_timer *t)
1680 struct qemu_alarm_win32 *data = t->priv;
1682 timeKillEvent(data->timerId);
1683 timeEndPeriod(data->period);
1686 static void win32_rearm_timer(struct qemu_alarm_timer *t)
1688 struct qemu_alarm_win32 *data = t->priv;
1689 uint64_t nearest_delta_us;
1691 if (!active_timers[QEMU_TIMER_REALTIME] &&
1692 !active_timers[QEMU_TIMER_VIRTUAL])
1695 nearest_delta_us = qemu_next_deadline_dyntick();
1696 nearest_delta_us /= 1000;
1698 timeKillEvent(data->timerId);
1700 data->timerId = timeSetEvent(1,
1704 TIME_ONESHOT | TIME_PERIODIC);
1706 if (!data->timerId) {
1707 perror("Failed to re-arm win32 alarm timer");
1709 timeEndPeriod(data->period);
1716 static int init_timer_alarm(void)
1718 struct qemu_alarm_timer *t = NULL;
1721 for (i = 0; alarm_timers[i].name; i++) {
1722 t = &alarm_timers[i];
1742 static void quit_timers(void)
1744 alarm_timer->stop(alarm_timer);
1748 /***********************************************************/
1749 /* host time/date access */
1750 void qemu_get_timedate(struct tm *tm, int offset)
1757 if (rtc_date_offset == -1) {
1761 ret = localtime(&ti);
1763 ti -= rtc_date_offset;
1767 memcpy(tm, ret, sizeof(struct tm));
1770 int qemu_timedate_diff(struct tm *tm)
1774 if (rtc_date_offset == -1)
1776 seconds = mktimegm(tm);
1778 seconds = mktime(tm);
1780 seconds = mktimegm(tm) + rtc_date_offset;
1782 return seconds - time(NULL);
1786 static void socket_cleanup(void)
1791 static int socket_init(void)
1796 ret = WSAStartup(MAKEWORD(2,2), &Data);
1798 err = WSAGetLastError();
1799 fprintf(stderr, "WSAStartup: %d\n", err);
1802 atexit(socket_cleanup);
1807 const char *get_opt_name(char *buf, int buf_size, const char *p, char delim)
1812 while (*p != '\0' && *p != delim) {
1813 if (q && (q - buf) < buf_size - 1)
1823 const char *get_opt_value(char *buf, int buf_size, const char *p)
1828 while (*p != '\0') {
1830 if (*(p + 1) != ',')
1834 if (q && (q - buf) < buf_size - 1)
1844 int get_param_value(char *buf, int buf_size,
1845 const char *tag, const char *str)
1852 p = get_opt_name(option, sizeof(option), p, '=');
1856 if (!strcmp(tag, option)) {
1857 (void)get_opt_value(buf, buf_size, p);
1860 p = get_opt_value(NULL, 0, p);
1869 int check_params(const char * const *params, const char *str)
1871 int name_buf_size = 1;
1877 for (i = 0; params[i] != NULL; i++) {
1878 len = strlen(params[i]) + 1;
1879 if (len > name_buf_size) {
1880 name_buf_size = len;
1883 name_buf = qemu_malloc(name_buf_size);
1886 while (*p != '\0') {
1887 p = get_opt_name(name_buf, name_buf_size, p, '=');
1893 for(i = 0; params[i] != NULL; i++)
1894 if (!strcmp(params[i], name_buf))
1896 if (params[i] == NULL) {
1900 p = get_opt_value(NULL, 0, p);
1906 qemu_free(name_buf);
1910 /***********************************************************/
1911 /* Bluetooth support */
1914 static struct HCIInfo *hci_table[MAX_NICS];
1916 static struct bt_vlan_s {
1917 struct bt_scatternet_s net;
1919 struct bt_vlan_s *next;
1922 /* find or alloc a new bluetooth "VLAN" */
1923 static struct bt_scatternet_s *qemu_find_bt_vlan(int id)
1925 struct bt_vlan_s **pvlan, *vlan;
1926 for (vlan = first_bt_vlan; vlan != NULL; vlan = vlan->next) {
1930 vlan = qemu_mallocz(sizeof(struct bt_vlan_s));
1932 pvlan = &first_bt_vlan;
1933 while (*pvlan != NULL)
1934 pvlan = &(*pvlan)->next;
1939 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
1943 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
1948 static struct HCIInfo null_hci = {
1949 .cmd_send = null_hci_send,
1950 .sco_send = null_hci_send,
1951 .acl_send = null_hci_send,
1952 .bdaddr_set = null_hci_addr_set,
1955 struct HCIInfo *qemu_next_hci(void)
1957 if (cur_hci == nb_hcis)
1960 return hci_table[cur_hci++];
1963 static struct HCIInfo *hci_init(const char *str)
1966 struct bt_scatternet_s *vlan = 0;
1968 if (!strcmp(str, "null"))
1971 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
1973 return bt_host_hci(str[4] ? str + 5 : "hci0");
1974 else if (!strncmp(str, "hci", 3)) {
1977 if (!strncmp(str + 3, ",vlan=", 6)) {
1978 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
1983 vlan = qemu_find_bt_vlan(0);
1985 return bt_new_hci(vlan);
1988 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
1993 static int bt_hci_parse(const char *str)
1995 struct HCIInfo *hci;
1998 if (nb_hcis >= MAX_NICS) {
1999 fprintf(stderr, "qemu: Too many bluetooth HCIs (max %i).\n", MAX_NICS);
2003 hci = hci_init(str);
2012 bdaddr.b[5] = 0x56 + nb_hcis;
2013 hci->bdaddr_set(hci, bdaddr.b);
2015 hci_table[nb_hcis++] = hci;
2020 static void bt_vhci_add(int vlan_id)
2022 struct bt_scatternet_s *vlan = qemu_find_bt_vlan(vlan_id);
2025 fprintf(stderr, "qemu: warning: adding a VHCI to "
2026 "an empty scatternet %i\n", vlan_id);
2028 bt_vhci_init(bt_new_hci(vlan));
2031 static struct bt_device_s *bt_device_add(const char *opt)
2033 struct bt_scatternet_s *vlan;
2035 char *endp = strstr(opt, ",vlan=");
2036 int len = (endp ? endp - opt : strlen(opt)) + 1;
2039 pstrcpy(devname, MIN(sizeof(devname), len), opt);
2042 vlan_id = strtol(endp + 6, &endp, 0);
2044 fprintf(stderr, "qemu: unrecognised bluetooth vlan Id\n");
2049 vlan = qemu_find_bt_vlan(vlan_id);
2052 fprintf(stderr, "qemu: warning: adding a slave device to "
2053 "an empty scatternet %i\n", vlan_id);
2055 if (!strcmp(devname, "keyboard"))
2056 return bt_keyboard_init(vlan);
2058 fprintf(stderr, "qemu: unsupported bluetooth device `%s'\n", devname);
2062 static int bt_parse(const char *opt)
2064 const char *endp, *p;
2067 if (strstart(opt, "hci", &endp)) {
2068 if (!*endp || *endp == ',') {
2070 if (!strstart(endp, ",vlan=", 0))
2073 return bt_hci_parse(opt);
2075 } else if (strstart(opt, "vhci", &endp)) {
2076 if (!*endp || *endp == ',') {
2078 if (strstart(endp, ",vlan=", &p)) {
2079 vlan = strtol(p, (char **) &endp, 0);
2081 fprintf(stderr, "qemu: bad scatternet '%s'\n", p);
2085 fprintf(stderr, "qemu: bad parameter '%s'\n", endp + 1);
2094 } else if (strstart(opt, "device:", &endp))
2095 return !bt_device_add(endp);
2097 fprintf(stderr, "qemu: bad bluetooth parameter '%s'\n", opt);
2101 /***********************************************************/
2102 /* QEMU Block devices */
2104 #define HD_ALIAS "index=%d,media=disk"
2105 #define CDROM_ALIAS "index=2,media=cdrom"
2106 #define FD_ALIAS "index=%d,if=floppy"
2107 #define PFLASH_ALIAS "if=pflash"
2108 #define MTD_ALIAS "if=mtd"
2109 #define SD_ALIAS "index=0,if=sd"
2111 static int drive_opt_get_free_idx(void)
2115 for (index = 0; index < MAX_DRIVES; index++)
2116 if (!drives_opt[index].used) {
2117 drives_opt[index].used = 1;
2124 static int drive_get_free_idx(void)
2128 for (index = 0; index < MAX_DRIVES; index++)
2129 if (!drives_table[index].used) {
2130 drives_table[index].used = 1;
2137 int drive_add(const char *file, const char *fmt, ...)
2140 int index = drive_opt_get_free_idx();
2142 if (nb_drives_opt >= MAX_DRIVES || index == -1) {
2143 fprintf(stderr, "qemu: too many drives\n");
2147 drives_opt[index].file = file;
2149 vsnprintf(drives_opt[index].opt,
2150 sizeof(drives_opt[0].opt), fmt, ap);
2157 void drive_remove(int index)
2159 drives_opt[index].used = 0;
2163 int drive_get_index(BlockInterfaceType type, int bus, int unit)
2167 /* seek interface, bus and unit */
2169 for (index = 0; index < MAX_DRIVES; index++)
2170 if (drives_table[index].type == type &&
2171 drives_table[index].bus == bus &&
2172 drives_table[index].unit == unit &&
2173 drives_table[index].used)
2179 int drive_get_max_bus(BlockInterfaceType type)
2185 for (index = 0; index < nb_drives; index++) {
2186 if(drives_table[index].type == type &&
2187 drives_table[index].bus > max_bus)
2188 max_bus = drives_table[index].bus;
2193 const char *drive_get_serial(BlockDriverState *bdrv)
2197 for (index = 0; index < nb_drives; index++)
2198 if (drives_table[index].bdrv == bdrv)
2199 return drives_table[index].serial;
2204 BlockInterfaceErrorAction drive_get_onerror(BlockDriverState *bdrv)
2208 for (index = 0; index < nb_drives; index++)
2209 if (drives_table[index].bdrv == bdrv)
2210 return drives_table[index].onerror;
2212 return BLOCK_ERR_STOP_ENOSPC;
2215 static void bdrv_format_print(void *opaque, const char *name)
2217 fprintf(stderr, " %s", name);
2220 void drive_uninit(BlockDriverState *bdrv)
2224 for (i = 0; i < MAX_DRIVES; i++)
2225 if (drives_table[i].bdrv == bdrv) {
2226 drives_table[i].bdrv = NULL;
2227 drives_table[i].used = 0;
2228 drive_remove(drives_table[i].drive_opt_idx);
2234 int drive_init(struct drive_opt *arg, int snapshot, void *opaque)
2240 const char *mediastr = "";
2241 BlockInterfaceType type;
2242 enum { MEDIA_DISK, MEDIA_CDROM } media;
2243 int bus_id, unit_id;
2244 int cyls, heads, secs, translation;
2245 BlockDriverState *bdrv;
2246 BlockDriver *drv = NULL;
2247 QEMUMachine *machine = opaque;
2251 int bdrv_flags, onerror;
2252 int drives_table_idx;
2253 char *str = arg->opt;
2254 static const char * const params[] = { "bus", "unit", "if", "index",
2255 "cyls", "heads", "secs", "trans",
2256 "media", "snapshot", "file",
2257 "cache", "format", "serial", "werror",
2260 if (check_params(params, str) < 0) {
2261 fprintf(stderr, "qemu: unknown parameter '%s' in '%s'\n",
2267 cyls = heads = secs = 0;
2270 translation = BIOS_ATA_TRANSLATION_AUTO;
2274 if (machine->use_scsi) {
2276 max_devs = MAX_SCSI_DEVS;
2277 pstrcpy(devname, sizeof(devname), "scsi");
2280 max_devs = MAX_IDE_DEVS;
2281 pstrcpy(devname, sizeof(devname), "ide");
2285 /* extract parameters */
2287 if (get_param_value(buf, sizeof(buf), "bus", str)) {
2288 bus_id = strtol(buf, NULL, 0);
2290 fprintf(stderr, "qemu: '%s' invalid bus id\n", str);
2295 if (get_param_value(buf, sizeof(buf), "unit", str)) {
2296 unit_id = strtol(buf, NULL, 0);
2298 fprintf(stderr, "qemu: '%s' invalid unit id\n", str);
2303 if (get_param_value(buf, sizeof(buf), "if", str)) {
2304 pstrcpy(devname, sizeof(devname), buf);
2305 if (!strcmp(buf, "ide")) {
2307 max_devs = MAX_IDE_DEVS;
2308 } else if (!strcmp(buf, "scsi")) {
2310 max_devs = MAX_SCSI_DEVS;
2311 } else if (!strcmp(buf, "floppy")) {
2314 } else if (!strcmp(buf, "pflash")) {
2317 } else if (!strcmp(buf, "mtd")) {
2320 } else if (!strcmp(buf, "sd")) {
2323 } else if (!strcmp(buf, "virtio")) {
2326 } else if (!strcmp(buf, "xen")) {
2330 fprintf(stderr, "qemu: '%s' unsupported bus type '%s'\n", str, buf);
2335 if (get_param_value(buf, sizeof(buf), "index", str)) {
2336 index = strtol(buf, NULL, 0);
2338 fprintf(stderr, "qemu: '%s' invalid index\n", str);
2343 if (get_param_value(buf, sizeof(buf), "cyls", str)) {
2344 cyls = strtol(buf, NULL, 0);
2347 if (get_param_value(buf, sizeof(buf), "heads", str)) {
2348 heads = strtol(buf, NULL, 0);
2351 if (get_param_value(buf, sizeof(buf), "secs", str)) {
2352 secs = strtol(buf, NULL, 0);
2355 if (cyls || heads || secs) {
2356 if (cyls < 1 || cyls > 16383) {
2357 fprintf(stderr, "qemu: '%s' invalid physical cyls number\n", str);
2360 if (heads < 1 || heads > 16) {
2361 fprintf(stderr, "qemu: '%s' invalid physical heads number\n", str);
2364 if (secs < 1 || secs > 63) {
2365 fprintf(stderr, "qemu: '%s' invalid physical secs number\n", str);
2370 if (get_param_value(buf, sizeof(buf), "trans", str)) {
2373 "qemu: '%s' trans must be used with cyls,heads and secs\n",
2377 if (!strcmp(buf, "none"))
2378 translation = BIOS_ATA_TRANSLATION_NONE;
2379 else if (!strcmp(buf, "lba"))
2380 translation = BIOS_ATA_TRANSLATION_LBA;
2381 else if (!strcmp(buf, "auto"))
2382 translation = BIOS_ATA_TRANSLATION_AUTO;
2384 fprintf(stderr, "qemu: '%s' invalid translation type\n", str);
2389 if (get_param_value(buf, sizeof(buf), "media", str)) {
2390 if (!strcmp(buf, "disk")) {
2392 } else if (!strcmp(buf, "cdrom")) {
2393 if (cyls || secs || heads) {
2395 "qemu: '%s' invalid physical CHS format\n", str);
2398 media = MEDIA_CDROM;
2400 fprintf(stderr, "qemu: '%s' invalid media\n", str);
2405 if (get_param_value(buf, sizeof(buf), "snapshot", str)) {
2406 if (!strcmp(buf, "on"))
2408 else if (!strcmp(buf, "off"))
2411 fprintf(stderr, "qemu: '%s' invalid snapshot option\n", str);
2416 if (get_param_value(buf, sizeof(buf), "cache", str)) {
2417 if (!strcmp(buf, "off") || !strcmp(buf, "none"))
2419 else if (!strcmp(buf, "writethrough"))
2421 else if (!strcmp(buf, "writeback"))
2424 fprintf(stderr, "qemu: invalid cache option\n");
2429 if (get_param_value(buf, sizeof(buf), "format", str)) {
2430 if (strcmp(buf, "?") == 0) {
2431 fprintf(stderr, "qemu: Supported formats:");
2432 bdrv_iterate_format(bdrv_format_print, NULL);
2433 fprintf(stderr, "\n");
2436 drv = bdrv_find_format(buf);
2438 fprintf(stderr, "qemu: '%s' invalid format\n", buf);
2443 if (arg->file == NULL)
2444 get_param_value(file, sizeof(file), "file", str);
2446 pstrcpy(file, sizeof(file), arg->file);
2448 if (!get_param_value(serial, sizeof(serial), "serial", str))
2449 memset(serial, 0, sizeof(serial));
2451 onerror = BLOCK_ERR_STOP_ENOSPC;
2452 if (get_param_value(buf, sizeof(serial), "werror", str)) {
2453 if (type != IF_IDE && type != IF_SCSI && type != IF_VIRTIO) {
2454 fprintf(stderr, "werror is no supported by this format\n");
2457 if (!strcmp(buf, "ignore"))
2458 onerror = BLOCK_ERR_IGNORE;
2459 else if (!strcmp(buf, "enospc"))
2460 onerror = BLOCK_ERR_STOP_ENOSPC;
2461 else if (!strcmp(buf, "stop"))
2462 onerror = BLOCK_ERR_STOP_ANY;
2463 else if (!strcmp(buf, "report"))
2464 onerror = BLOCK_ERR_REPORT;
2466 fprintf(stderr, "qemu: '%s' invalid write error action\n", buf);
2471 /* compute bus and unit according index */
2474 if (bus_id != 0 || unit_id != -1) {
2476 "qemu: '%s' index cannot be used with bus and unit\n", str);
2484 unit_id = index % max_devs;
2485 bus_id = index / max_devs;
2489 /* if user doesn't specify a unit_id,
2490 * try to find the first free
2493 if (unit_id == -1) {
2495 while (drive_get_index(type, bus_id, unit_id) != -1) {
2497 if (max_devs && unit_id >= max_devs) {
2498 unit_id -= max_devs;
2506 if (max_devs && unit_id >= max_devs) {
2507 fprintf(stderr, "qemu: '%s' unit %d too big (max is %d)\n",
2508 str, unit_id, max_devs - 1);
2513 * ignore multiple definitions
2516 if (drive_get_index(type, bus_id, unit_id) != -1)
2521 if (type == IF_IDE || type == IF_SCSI)
2522 mediastr = (media == MEDIA_CDROM) ? "-cd" : "-hd";
2524 snprintf(buf, sizeof(buf), "%s%i%s%i",
2525 devname, bus_id, mediastr, unit_id);
2527 snprintf(buf, sizeof(buf), "%s%s%i",
2528 devname, mediastr, unit_id);
2529 bdrv = bdrv_new(buf);
2530 drives_table_idx = drive_get_free_idx();
2531 drives_table[drives_table_idx].bdrv = bdrv;
2532 drives_table[drives_table_idx].type = type;
2533 drives_table[drives_table_idx].bus = bus_id;
2534 drives_table[drives_table_idx].unit = unit_id;
2535 drives_table[drives_table_idx].onerror = onerror;
2536 drives_table[drives_table_idx].drive_opt_idx = arg - drives_opt;
2537 strncpy(drives_table[nb_drives].serial, serial, sizeof(serial));
2547 bdrv_set_geometry_hint(bdrv, cyls, heads, secs);
2548 bdrv_set_translation_hint(bdrv, translation);
2552 bdrv_set_type_hint(bdrv, BDRV_TYPE_CDROM);
2557 /* FIXME: This isn't really a floppy, but it's a reasonable
2560 bdrv_set_type_hint(bdrv, BDRV_TYPE_FLOPPY);
2571 bdrv_flags |= BDRV_O_SNAPSHOT;
2572 cache = 2; /* always use write-back with snapshot */
2574 if (cache == 0) /* no caching */
2575 bdrv_flags |= BDRV_O_NOCACHE;
2576 else if (cache == 2) /* write-back */
2577 bdrv_flags |= BDRV_O_CACHE_WB;
2578 else if (cache == 3) /* not specified */
2579 bdrv_flags |= BDRV_O_CACHE_DEF;
2580 if (bdrv_open2(bdrv, file, bdrv_flags, drv) < 0) {
2581 fprintf(stderr, "qemu: could not open disk image %s\n",
2585 if (bdrv_key_required(bdrv))
2587 return drives_table_idx;
2590 static void numa_add(const char *optarg)
2594 unsigned long long value, endvalue;
2597 optarg = get_opt_name(option, 128, optarg, ',') + 1;
2598 if (!strcmp(option, "node")) {
2599 if (get_param_value(option, 128, "nodeid", optarg) == 0) {
2600 nodenr = nb_numa_nodes;
2602 nodenr = strtoull(option, NULL, 10);
2605 if (get_param_value(option, 128, "mem", optarg) == 0) {
2606 node_mem[nodenr] = 0;
2608 value = strtoull(option, &endptr, 0);
2610 case 0: case 'M': case 'm':
2617 node_mem[nodenr] = value;
2619 if (get_param_value(option, 128, "cpus", optarg) == 0) {
2620 node_cpumask[nodenr] = 0;
2622 value = strtoull(option, &endptr, 10);
2625 fprintf(stderr, "only 64 CPUs in NUMA mode supported.\n");
2627 if (*endptr == '-') {
2628 endvalue = strtoull(endptr+1, &endptr, 10);
2629 if (endvalue >= 63) {
2632 "only 63 CPUs in NUMA mode supported.\n");
2634 value = (1 << (endvalue + 1)) - (1 << value);
2639 node_cpumask[nodenr] = value;
2646 /***********************************************************/
2649 static USBPort *used_usb_ports;
2650 static USBPort *free_usb_ports;
2652 /* ??? Maybe change this to register a hub to keep track of the topology. */
2653 void qemu_register_usb_port(USBPort *port, void *opaque, int index,
2654 usb_attachfn attach)
2656 port->opaque = opaque;
2657 port->index = index;
2658 port->attach = attach;
2659 port->next = free_usb_ports;
2660 free_usb_ports = port;
2663 int usb_device_add_dev(USBDevice *dev)
2667 /* Find a USB port to add the device to. */
2668 port = free_usb_ports;
2672 /* Create a new hub and chain it on. */
2673 free_usb_ports = NULL;
2674 port->next = used_usb_ports;
2675 used_usb_ports = port;
2677 hub = usb_hub_init(VM_USB_HUB_SIZE);
2678 usb_attach(port, hub);
2679 port = free_usb_ports;
2682 free_usb_ports = port->next;
2683 port->next = used_usb_ports;
2684 used_usb_ports = port;
2685 usb_attach(port, dev);
2689 static void usb_msd_password_cb(void *opaque, int err)
2691 USBDevice *dev = opaque;
2694 usb_device_add_dev(dev);
2696 dev->handle_destroy(dev);
2699 static int usb_device_add(const char *devname, int is_hotplug)
2704 if (!free_usb_ports)
2707 if (strstart(devname, "host:", &p)) {
2708 dev = usb_host_device_open(p);
2709 } else if (!strcmp(devname, "mouse")) {
2710 dev = usb_mouse_init();
2711 } else if (!strcmp(devname, "tablet")) {
2712 dev = usb_tablet_init();
2713 } else if (!strcmp(devname, "keyboard")) {
2714 dev = usb_keyboard_init();
2715 } else if (strstart(devname, "disk:", &p)) {
2716 BlockDriverState *bs;
2718 dev = usb_msd_init(p);
2721 bs = usb_msd_get_bdrv(dev);
2722 if (bdrv_key_required(bs)) {
2725 monitor_read_bdrv_key_start(cur_mon, bs, usb_msd_password_cb,
2730 } else if (!strcmp(devname, "wacom-tablet")) {
2731 dev = usb_wacom_init();
2732 } else if (strstart(devname, "serial:", &p)) {
2733 dev = usb_serial_init(p);
2734 #ifdef CONFIG_BRLAPI
2735 } else if (!strcmp(devname, "braille")) {
2736 dev = usb_baum_init();
2738 } else if (strstart(devname, "net:", &p)) {
2741 if (net_client_init("nic", p) < 0)
2743 nd_table[nic].model = "usb";
2744 dev = usb_net_init(&nd_table[nic]);
2745 } else if (!strcmp(devname, "bt") || strstart(devname, "bt:", &p)) {
2746 dev = usb_bt_init(devname[2] ? hci_init(p) :
2747 bt_new_hci(qemu_find_bt_vlan(0)));
2754 return usb_device_add_dev(dev);
2757 int usb_device_del_addr(int bus_num, int addr)
2763 if (!used_usb_ports)
2769 lastp = &used_usb_ports;
2770 port = used_usb_ports;
2771 while (port && port->dev->addr != addr) {
2772 lastp = &port->next;
2780 *lastp = port->next;
2781 usb_attach(port, NULL);
2782 dev->handle_destroy(dev);
2783 port->next = free_usb_ports;
2784 free_usb_ports = port;
2788 static int usb_device_del(const char *devname)
2793 if (strstart(devname, "host:", &p))
2794 return usb_host_device_close(p);
2796 if (!used_usb_ports)
2799 p = strchr(devname, '.');
2802 bus_num = strtoul(devname, NULL, 0);
2803 addr = strtoul(p + 1, NULL, 0);
2805 return usb_device_del_addr(bus_num, addr);
2808 void do_usb_add(Monitor *mon, const char *devname)
2810 usb_device_add(devname, 1);
2813 void do_usb_del(Monitor *mon, const char *devname)
2815 usb_device_del(devname);
2818 void usb_info(Monitor *mon)
2822 const char *speed_str;
2825 monitor_printf(mon, "USB support not enabled\n");
2829 for (port = used_usb_ports; port; port = port->next) {
2833 switch(dev->speed) {
2837 case USB_SPEED_FULL:
2840 case USB_SPEED_HIGH:
2847 monitor_printf(mon, " Device %d.%d, Speed %s Mb/s, Product %s\n",
2848 0, dev->addr, speed_str, dev->devname);
2852 /***********************************************************/
2853 /* PCMCIA/Cardbus */
2855 static struct pcmcia_socket_entry_s {
2856 struct pcmcia_socket_s *socket;
2857 struct pcmcia_socket_entry_s *next;
2858 } *pcmcia_sockets = 0;
2860 void pcmcia_socket_register(struct pcmcia_socket_s *socket)
2862 struct pcmcia_socket_entry_s *entry;
2864 entry = qemu_malloc(sizeof(struct pcmcia_socket_entry_s));
2865 entry->socket = socket;
2866 entry->next = pcmcia_sockets;
2867 pcmcia_sockets = entry;
2870 void pcmcia_socket_unregister(struct pcmcia_socket_s *socket)
2872 struct pcmcia_socket_entry_s *entry, **ptr;
2874 ptr = &pcmcia_sockets;
2875 for (entry = *ptr; entry; ptr = &entry->next, entry = *ptr)
2876 if (entry->socket == socket) {
2882 void pcmcia_info(Monitor *mon)
2884 struct pcmcia_socket_entry_s *iter;
2886 if (!pcmcia_sockets)
2887 monitor_printf(mon, "No PCMCIA sockets\n");
2889 for (iter = pcmcia_sockets; iter; iter = iter->next)
2890 monitor_printf(mon, "%s: %s\n", iter->socket->slot_string,
2891 iter->socket->attached ? iter->socket->card_string :
2895 /***********************************************************/
2896 /* register display */
2898 struct DisplayAllocator default_allocator = {
2899 defaultallocator_create_displaysurface,
2900 defaultallocator_resize_displaysurface,
2901 defaultallocator_free_displaysurface
2904 void register_displaystate(DisplayState *ds)
2914 DisplayState *get_displaystate(void)
2916 return display_state;
2919 DisplayAllocator *register_displayallocator(DisplayState *ds, DisplayAllocator *da)
2921 if(ds->allocator == &default_allocator) ds->allocator = da;
2922 return ds->allocator;
2927 static void dumb_display_init(void)
2929 DisplayState *ds = qemu_mallocz(sizeof(DisplayState));
2930 ds->allocator = &default_allocator;
2931 ds->surface = qemu_create_displaysurface(ds, 640, 480);
2932 register_displaystate(ds);
2935 /***********************************************************/
2938 typedef struct IOHandlerRecord {
2940 IOCanRWHandler *fd_read_poll;
2942 IOHandler *fd_write;
2945 /* temporary data */
2947 struct IOHandlerRecord *next;
2950 static IOHandlerRecord *first_io_handler;
2952 /* XXX: fd_read_poll should be suppressed, but an API change is
2953 necessary in the character devices to suppress fd_can_read(). */
2954 int qemu_set_fd_handler2(int fd,
2955 IOCanRWHandler *fd_read_poll,
2957 IOHandler *fd_write,
2960 IOHandlerRecord **pioh, *ioh;
2962 if (!fd_read && !fd_write) {
2963 pioh = &first_io_handler;
2968 if (ioh->fd == fd) {
2975 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
2979 ioh = qemu_mallocz(sizeof(IOHandlerRecord));
2980 ioh->next = first_io_handler;
2981 first_io_handler = ioh;
2984 ioh->fd_read_poll = fd_read_poll;
2985 ioh->fd_read = fd_read;
2986 ioh->fd_write = fd_write;
2987 ioh->opaque = opaque;
2993 int qemu_set_fd_handler(int fd,
2995 IOHandler *fd_write,
2998 return qemu_set_fd_handler2(fd, NULL, fd_read, fd_write, opaque);
3002 /***********************************************************/
3003 /* Polling handling */
3005 typedef struct PollingEntry {
3008 struct PollingEntry *next;
3011 static PollingEntry *first_polling_entry;
3013 int qemu_add_polling_cb(PollingFunc *func, void *opaque)
3015 PollingEntry **ppe, *pe;
3016 pe = qemu_mallocz(sizeof(PollingEntry));
3018 pe->opaque = opaque;
3019 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next);
3024 void qemu_del_polling_cb(PollingFunc *func, void *opaque)
3026 PollingEntry **ppe, *pe;
3027 for(ppe = &first_polling_entry; *ppe != NULL; ppe = &(*ppe)->next) {
3029 if (pe->func == func && pe->opaque == opaque) {
3037 /***********************************************************/
3038 /* Wait objects support */
3039 typedef struct WaitObjects {
3041 HANDLE events[MAXIMUM_WAIT_OBJECTS + 1];
3042 WaitObjectFunc *func[MAXIMUM_WAIT_OBJECTS + 1];
3043 void *opaque[MAXIMUM_WAIT_OBJECTS + 1];
3046 static WaitObjects wait_objects = {0};
3048 int qemu_add_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
3050 WaitObjects *w = &wait_objects;
3052 if (w->num >= MAXIMUM_WAIT_OBJECTS)
3054 w->events[w->num] = handle;
3055 w->func[w->num] = func;
3056 w->opaque[w->num] = opaque;
3061 void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque)
3064 WaitObjects *w = &wait_objects;
3067 for (i = 0; i < w->num; i++) {
3068 if (w->events[i] == handle)
3071 w->events[i] = w->events[i + 1];
3072 w->func[i] = w->func[i + 1];
3073 w->opaque[i] = w->opaque[i + 1];
3081 /***********************************************************/
3082 /* ram save/restore */
3084 static int ram_get_page(QEMUFile *f, uint8_t *buf, int len)
3088 v = qemu_get_byte(f);
3091 if (qemu_get_buffer(f, buf, len) != len)
3095 v = qemu_get_byte(f);
3096 memset(buf, v, len);
3102 if (qemu_file_has_error(f))
3108 static int ram_load_v1(QEMUFile *f, void *opaque)
3113 if (qemu_get_be32(f) != last_ram_offset)
3115 for(i = 0; i < last_ram_offset; i+= TARGET_PAGE_SIZE) {
3116 ret = ram_get_page(f, qemu_get_ram_ptr(i), TARGET_PAGE_SIZE);
3123 #define BDRV_HASH_BLOCK_SIZE 1024
3124 #define IOBUF_SIZE 4096
3125 #define RAM_CBLOCK_MAGIC 0xfabe
3127 typedef struct RamDecompressState {
3130 uint8_t buf[IOBUF_SIZE];
3131 } RamDecompressState;
3133 static int ram_decompress_open(RamDecompressState *s, QEMUFile *f)
3136 memset(s, 0, sizeof(*s));
3138 ret = inflateInit(&s->zstream);
3144 static int ram_decompress_buf(RamDecompressState *s, uint8_t *buf, int len)
3148 s->zstream.avail_out = len;
3149 s->zstream.next_out = buf;
3150 while (s->zstream.avail_out > 0) {
3151 if (s->zstream.avail_in == 0) {
3152 if (qemu_get_be16(s->f) != RAM_CBLOCK_MAGIC)
3154 clen = qemu_get_be16(s->f);
3155 if (clen > IOBUF_SIZE)
3157 qemu_get_buffer(s->f, s->buf, clen);
3158 s->zstream.avail_in = clen;
3159 s->zstream.next_in = s->buf;
3161 ret = inflate(&s->zstream, Z_PARTIAL_FLUSH);
3162 if (ret != Z_OK && ret != Z_STREAM_END) {
3169 static void ram_decompress_close(RamDecompressState *s)
3171 inflateEnd(&s->zstream);
3174 #define RAM_SAVE_FLAG_FULL 0x01
3175 #define RAM_SAVE_FLAG_COMPRESS 0x02
3176 #define RAM_SAVE_FLAG_MEM_SIZE 0x04
3177 #define RAM_SAVE_FLAG_PAGE 0x08
3178 #define RAM_SAVE_FLAG_EOS 0x10
3180 static int is_dup_page(uint8_t *page, uint8_t ch)
3182 uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
3183 uint32_t *array = (uint32_t *)page;
3186 for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
3187 if (array[i] != val)
3194 static int ram_save_block(QEMUFile *f)
3196 static ram_addr_t current_addr = 0;
3197 ram_addr_t saved_addr = current_addr;
3198 ram_addr_t addr = 0;
3201 while (addr < last_ram_offset) {
3202 if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
3205 cpu_physical_memory_reset_dirty(current_addr,
3206 current_addr + TARGET_PAGE_SIZE,
3207 MIGRATION_DIRTY_FLAG);
3209 p = qemu_get_ram_ptr(current_addr);
3211 if (is_dup_page(p, *p)) {
3212 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_COMPRESS);
3213 qemu_put_byte(f, *p);
3215 qemu_put_be64(f, current_addr | RAM_SAVE_FLAG_PAGE);
3216 qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
3222 addr += TARGET_PAGE_SIZE;
3223 current_addr = (saved_addr + addr) % last_ram_offset;
3229 static ram_addr_t ram_save_threshold = 10;
3231 static ram_addr_t ram_save_remaining(void)
3234 ram_addr_t count = 0;
3236 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
3237 if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3244 static int ram_save_live(QEMUFile *f, int stage, void *opaque)
3249 /* Make sure all dirty bits are set */
3250 for (addr = 0; addr < last_ram_offset; addr += TARGET_PAGE_SIZE) {
3251 if (!cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG))
3252 cpu_physical_memory_set_dirty(addr);
3255 /* Enable dirty memory tracking */
3256 cpu_physical_memory_set_dirty_tracking(1);
3258 qemu_put_be64(f, last_ram_offset | RAM_SAVE_FLAG_MEM_SIZE);
3261 while (!qemu_file_rate_limit(f)) {
3264 ret = ram_save_block(f);
3265 if (ret == 0) /* no more blocks */
3269 /* try transferring iterative blocks of memory */
3273 /* flush all remaining blocks regardless of rate limiting */
3274 while (ram_save_block(f) != 0);
3275 cpu_physical_memory_set_dirty_tracking(0);
3278 qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
3280 return (stage == 2) && (ram_save_remaining() < ram_save_threshold);
3283 static int ram_load_dead(QEMUFile *f, void *opaque)
3285 RamDecompressState s1, *s = &s1;
3289 if (ram_decompress_open(s, f) < 0)
3291 for(i = 0; i < last_ram_offset; i+= BDRV_HASH_BLOCK_SIZE) {
3292 if (ram_decompress_buf(s, buf, 1) < 0) {
3293 fprintf(stderr, "Error while reading ram block header\n");
3297 if (ram_decompress_buf(s, qemu_get_ram_ptr(i),
3298 BDRV_HASH_BLOCK_SIZE) < 0) {
3299 fprintf(stderr, "Error while reading ram block address=0x%08" PRIx64, (uint64_t)i);
3304 printf("Error block header\n");
3308 ram_decompress_close(s);
3313 static int ram_load(QEMUFile *f, void *opaque, int version_id)
3318 if (version_id == 1)
3319 return ram_load_v1(f, opaque);
3321 if (version_id == 2) {
3322 if (qemu_get_be32(f) != last_ram_offset)
3324 return ram_load_dead(f, opaque);
3327 if (version_id != 3)
3331 addr = qemu_get_be64(f);
3333 flags = addr & ~TARGET_PAGE_MASK;
3334 addr &= TARGET_PAGE_MASK;
3336 if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
3337 if (addr != last_ram_offset)
3341 if (flags & RAM_SAVE_FLAG_FULL) {
3342 if (ram_load_dead(f, opaque) < 0)
3346 if (flags & RAM_SAVE_FLAG_COMPRESS) {
3347 uint8_t ch = qemu_get_byte(f);
3348 memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE);
3349 } else if (flags & RAM_SAVE_FLAG_PAGE)
3350 qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE);
3351 } while (!(flags & RAM_SAVE_FLAG_EOS));
3356 void qemu_service_io(void)
3358 qemu_notify_event();
3361 /***********************************************************/
3362 /* bottom halves (can be seen as timers which expire ASAP) */
3373 static QEMUBH *first_bh = NULL;
3375 QEMUBH *qemu_bh_new(QEMUBHFunc *cb, void *opaque)
3378 bh = qemu_mallocz(sizeof(QEMUBH));
3380 bh->opaque = opaque;
3381 bh->next = first_bh;
3386 int qemu_bh_poll(void)
3392 for (bh = first_bh; bh; bh = bh->next) {
3393 if (!bh->deleted && bh->scheduled) {
3402 /* remove deleted bhs */
3416 void qemu_bh_schedule_idle(QEMUBH *bh)
3424 void qemu_bh_schedule(QEMUBH *bh)
3430 /* stop the currently executing CPU to execute the BH ASAP */
3431 qemu_notify_event();
3434 void qemu_bh_cancel(QEMUBH *bh)
3439 void qemu_bh_delete(QEMUBH *bh)
3445 static void qemu_bh_update_timeout(int *timeout)
3449 for (bh = first_bh; bh; bh = bh->next) {
3450 if (!bh->deleted && bh->scheduled) {
3452 /* idle bottom halves will be polled at least
3454 *timeout = MIN(10, *timeout);
3456 /* non-idle bottom halves will be executed
3465 /***********************************************************/
3466 /* machine registration */
3468 static QEMUMachine *first_machine = NULL;
3469 QEMUMachine *current_machine = NULL;
3471 int qemu_register_machine(QEMUMachine *m)
3474 pm = &first_machine;
3482 static QEMUMachine *find_machine(const char *name)
3486 for(m = first_machine; m != NULL; m = m->next) {
3487 if (!strcmp(m->name, name))
3493 /***********************************************************/
3494 /* main execution loop */
3496 static void gui_update(void *opaque)
3498 uint64_t interval = GUI_REFRESH_INTERVAL;
3499 DisplayState *ds = opaque;
3500 DisplayChangeListener *dcl = ds->listeners;
3504 while (dcl != NULL) {
3505 if (dcl->gui_timer_interval &&
3506 dcl->gui_timer_interval < interval)
3507 interval = dcl->gui_timer_interval;
3510 qemu_mod_timer(ds->gui_timer, interval + qemu_get_clock(rt_clock));
3513 static void nographic_update(void *opaque)
3515 uint64_t interval = GUI_REFRESH_INTERVAL;
3517 qemu_mod_timer(nographic_timer, interval + qemu_get_clock(rt_clock));
3520 struct vm_change_state_entry {
3521 VMChangeStateHandler *cb;
3523 LIST_ENTRY (vm_change_state_entry) entries;
3526 static LIST_HEAD(vm_change_state_head, vm_change_state_entry) vm_change_state_head;
3528 VMChangeStateEntry *qemu_add_vm_change_state_handler(VMChangeStateHandler *cb,
3531 VMChangeStateEntry *e;
3533 e = qemu_mallocz(sizeof (*e));
3537 LIST_INSERT_HEAD(&vm_change_state_head, e, entries);
3541 void qemu_del_vm_change_state_handler(VMChangeStateEntry *e)
3543 LIST_REMOVE (e, entries);
3547 static void vm_state_notify(int running, int reason)
3549 VMChangeStateEntry *e;
3551 for (e = vm_change_state_head.lh_first; e; e = e->entries.le_next) {
3552 e->cb(e->opaque, running, reason);
3556 static void resume_all_vcpus(void);
3557 static void pause_all_vcpus(void);
3564 vm_state_notify(1, 0);
3565 qemu_rearm_alarm_timer(alarm_timer);
3570 /* reset/shutdown handler */
3572 typedef struct QEMUResetEntry {
3573 QEMUResetHandler *func;
3575 struct QEMUResetEntry *next;
3578 static QEMUResetEntry *first_reset_entry;
3579 static int reset_requested;
3580 static int shutdown_requested;
3581 static int powerdown_requested;
3582 static int debug_requested;
3583 static int vmstop_requested;
3585 int qemu_shutdown_requested(void)
3587 int r = shutdown_requested;
3588 shutdown_requested = 0;
3592 int qemu_reset_requested(void)
3594 int r = reset_requested;
3595 reset_requested = 0;
3599 int qemu_powerdown_requested(void)
3601 int r = powerdown_requested;
3602 powerdown_requested = 0;
3606 static int qemu_debug_requested(void)
3608 int r = debug_requested;
3609 debug_requested = 0;
3613 static int qemu_vmstop_requested(void)
3615 int r = vmstop_requested;
3616 vmstop_requested = 0;
3620 static void do_vm_stop(int reason)
3623 cpu_disable_ticks();
3626 vm_state_notify(0, reason);
3630 void qemu_register_reset(QEMUResetHandler *func, void *opaque)
3632 QEMUResetEntry **pre, *re;
3634 pre = &first_reset_entry;
3635 while (*pre != NULL)
3636 pre = &(*pre)->next;
3637 re = qemu_mallocz(sizeof(QEMUResetEntry));
3639 re->opaque = opaque;
3644 void qemu_system_reset(void)
3648 /* reset all devices */
3649 for(re = first_reset_entry; re != NULL; re = re->next) {
3650 re->func(re->opaque);
3656 void qemu_system_reset_request(void)
3659 shutdown_requested = 1;
3661 reset_requested = 1;
3663 qemu_notify_event();
3666 void qemu_system_shutdown_request(void)
3668 shutdown_requested = 1;
3669 qemu_notify_event();
3672 void qemu_system_powerdown_request(void)
3674 powerdown_requested = 1;
3675 qemu_notify_event();
3678 #ifdef CONFIG_IOTHREAD
3679 static void qemu_system_vmstop_request(int reason)
3681 vmstop_requested = reason;
3682 qemu_notify_event();
3687 static int io_thread_fd = -1;
3689 static void qemu_event_increment(void)
3691 static const char byte = 0;
3693 if (io_thread_fd == -1)
3696 write(io_thread_fd, &byte, sizeof(byte));
3699 static void qemu_event_read(void *opaque)
3701 int fd = (unsigned long)opaque;
3704 /* Drain the notify pipe */
3707 len = read(fd, buffer, sizeof(buffer));
3708 } while ((len == -1 && errno == EINTR) || len > 0);
3711 static int qemu_event_init(void)
3720 err = fcntl_setfl(fds[0], O_NONBLOCK);
3724 err = fcntl_setfl(fds[1], O_NONBLOCK);
3728 qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
3729 (void *)(unsigned long)fds[0]);
3731 io_thread_fd = fds[1];
3740 HANDLE qemu_event_handle;
3742 static void dummy_event_handler(void *opaque)
3746 static int qemu_event_init(void)
3748 qemu_event_handle = CreateEvent(NULL, FALSE, FALSE, NULL);
3749 if (!qemu_event_handle) {
3750 perror("Failed CreateEvent");
3753 qemu_add_wait_object(qemu_event_handle, dummy_event_handler, NULL);
3757 static void qemu_event_increment(void)
3759 SetEvent(qemu_event_handle);
3763 static int cpu_can_run(CPUState *env)
3772 #ifndef CONFIG_IOTHREAD
3773 static int qemu_init_main_loop(void)
3775 return qemu_event_init();
3778 void qemu_init_vcpu(void *_env)
3780 CPUState *env = _env;
3787 int qemu_cpu_self(void *env)
3792 static void resume_all_vcpus(void)
3796 static void pause_all_vcpus(void)
3800 void qemu_cpu_kick(void *env)
3805 void qemu_notify_event(void)
3807 CPUState *env = cpu_single_env;
3812 if (env->kqemu_enabled)
3813 kqemu_cpu_interrupt(env);
3818 #define qemu_mutex_lock_iothread() do { } while (0)
3819 #define qemu_mutex_unlock_iothread() do { } while (0)
3821 void vm_stop(int reason)
3826 #else /* CONFIG_IOTHREAD */
3828 #include "qemu-thread.h"
3830 QemuMutex qemu_global_mutex;
3831 static QemuMutex qemu_fair_mutex;
3833 static QemuThread io_thread;
3835 static QemuThread *tcg_cpu_thread;
3836 static QemuCond *tcg_halt_cond;
3838 static int qemu_system_ready;
3840 static QemuCond qemu_cpu_cond;
3842 static QemuCond qemu_system_cond;
3843 static QemuCond qemu_pause_cond;
3845 static void block_io_signals(void);
3846 static void unblock_io_signals(void);
3847 static int tcg_has_work(void);
3849 static int qemu_init_main_loop(void)
3853 ret = qemu_event_init();
3857 qemu_cond_init(&qemu_pause_cond);
3858 qemu_mutex_init(&qemu_fair_mutex);
3859 qemu_mutex_init(&qemu_global_mutex);
3860 qemu_mutex_lock(&qemu_global_mutex);
3862 unblock_io_signals();
3863 qemu_thread_self(&io_thread);
3868 static void qemu_wait_io_event(CPUState *env)
3870 while (!tcg_has_work())
3871 qemu_cond_timedwait(env->halt_cond, &qemu_global_mutex, 1000);
3873 qemu_mutex_unlock(&qemu_global_mutex);
3876 * Users of qemu_global_mutex can be starved, having no chance
3877 * to acquire it since this path will get to it first.
3878 * So use another lock to provide fairness.
3880 qemu_mutex_lock(&qemu_fair_mutex);
3881 qemu_mutex_unlock(&qemu_fair_mutex);
3883 qemu_mutex_lock(&qemu_global_mutex);
3887 qemu_cond_signal(&qemu_pause_cond);
3891 static int qemu_cpu_exec(CPUState *env);
3893 static void *kvm_cpu_thread_fn(void *arg)
3895 CPUState *env = arg;
3898 qemu_thread_self(env->thread);
3900 /* signal CPU creation */
3901 qemu_mutex_lock(&qemu_global_mutex);
3903 qemu_cond_signal(&qemu_cpu_cond);
3905 /* and wait for machine initialization */
3906 while (!qemu_system_ready)
3907 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3910 if (cpu_can_run(env))
3912 qemu_wait_io_event(env);
3918 static void tcg_cpu_exec(void);
3920 static void *tcg_cpu_thread_fn(void *arg)
3922 CPUState *env = arg;
3925 qemu_thread_self(env->thread);
3927 /* signal CPU creation */
3928 qemu_mutex_lock(&qemu_global_mutex);
3929 for (env = first_cpu; env != NULL; env = env->next_cpu)
3931 qemu_cond_signal(&qemu_cpu_cond);
3933 /* and wait for machine initialization */
3934 while (!qemu_system_ready)
3935 qemu_cond_timedwait(&qemu_system_cond, &qemu_global_mutex, 100);
3939 qemu_wait_io_event(cur_cpu);
3945 void qemu_cpu_kick(void *_env)
3947 CPUState *env = _env;
3948 qemu_cond_broadcast(env->halt_cond);
3950 qemu_thread_signal(env->thread, SIGUSR1);
3953 int qemu_cpu_self(void *env)
3955 return (cpu_single_env != NULL);
3958 static void cpu_signal(int sig)
3961 cpu_exit(cpu_single_env);
3964 static void block_io_signals(void)
3967 struct sigaction sigact;
3970 sigaddset(&set, SIGUSR2);
3971 sigaddset(&set, SIGIO);
3972 sigaddset(&set, SIGALRM);
3973 pthread_sigmask(SIG_BLOCK, &set, NULL);
3976 sigaddset(&set, SIGUSR1);
3977 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3979 memset(&sigact, 0, sizeof(sigact));
3980 sigact.sa_handler = cpu_signal;
3981 sigaction(SIGUSR1, &sigact, NULL);
3984 static void unblock_io_signals(void)
3989 sigaddset(&set, SIGUSR2);
3990 sigaddset(&set, SIGIO);
3991 sigaddset(&set, SIGALRM);
3992 pthread_sigmask(SIG_UNBLOCK, &set, NULL);
3995 sigaddset(&set, SIGUSR1);
3996 pthread_sigmask(SIG_BLOCK, &set, NULL);
3999 static void qemu_signal_lock(unsigned int msecs)
4001 qemu_mutex_lock(&qemu_fair_mutex);
4003 while (qemu_mutex_trylock(&qemu_global_mutex)) {
4004 qemu_thread_signal(tcg_cpu_thread, SIGUSR1);
4005 if (!qemu_mutex_timedlock(&qemu_global_mutex, msecs))
4008 qemu_mutex_unlock(&qemu_fair_mutex);
4011 static void qemu_mutex_lock_iothread(void)
4013 if (kvm_enabled()) {
4014 qemu_mutex_lock(&qemu_fair_mutex);
4015 qemu_mutex_lock(&qemu_global_mutex);
4016 qemu_mutex_unlock(&qemu_fair_mutex);
4018 qemu_signal_lock(100);
4021 static void qemu_mutex_unlock_iothread(void)
4023 qemu_mutex_unlock(&qemu_global_mutex);
4026 static int all_vcpus_paused(void)
4028 CPUState *penv = first_cpu;
4033 penv = (CPUState *)penv->next_cpu;
4039 static void pause_all_vcpus(void)
4041 CPUState *penv = first_cpu;
4045 qemu_thread_signal(penv->thread, SIGUSR1);
4046 qemu_cpu_kick(penv);
4047 penv = (CPUState *)penv->next_cpu;
4050 while (!all_vcpus_paused()) {
4051 qemu_cond_timedwait(&qemu_pause_cond, &qemu_global_mutex, 100);
4054 qemu_thread_signal(penv->thread, SIGUSR1);
4055 penv = (CPUState *)penv->next_cpu;
4060 static void resume_all_vcpus(void)
4062 CPUState *penv = first_cpu;
4067 qemu_thread_signal(penv->thread, SIGUSR1);
4068 qemu_cpu_kick(penv);
4069 penv = (CPUState *)penv->next_cpu;
4073 static void tcg_init_vcpu(void *_env)
4075 CPUState *env = _env;
4076 /* share a single thread for all cpus with TCG */
4077 if (!tcg_cpu_thread) {
4078 env->thread = qemu_mallocz(sizeof(QemuThread));
4079 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
4080 qemu_cond_init(env->halt_cond);
4081 qemu_thread_create(env->thread, tcg_cpu_thread_fn, env);
4082 while (env->created == 0)
4083 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
4084 tcg_cpu_thread = env->thread;
4085 tcg_halt_cond = env->halt_cond;
4087 env->thread = tcg_cpu_thread;
4088 env->halt_cond = tcg_halt_cond;
4092 static void kvm_start_vcpu(CPUState *env)
4095 env->thread = qemu_mallocz(sizeof(QemuThread));
4096 env->halt_cond = qemu_mallocz(sizeof(QemuCond));
4097 qemu_cond_init(env->halt_cond);
4098 qemu_thread_create(env->thread, kvm_cpu_thread_fn, env);
4099 while (env->created == 0)
4100 qemu_cond_timedwait(&qemu_cpu_cond, &qemu_global_mutex, 100);
4103 void qemu_init_vcpu(void *_env)
4105 CPUState *env = _env;
4108 kvm_start_vcpu(env);
4113 void qemu_notify_event(void)
4115 qemu_event_increment();
4118 void vm_stop(int reason)
4121 qemu_thread_self(&me);
4123 if (!qemu_thread_equal(&me, &io_thread)) {
4124 qemu_system_vmstop_request(reason);
4126 * FIXME: should not return to device code in case
4127 * vm_stop() has been requested.
4129 if (cpu_single_env) {
4130 cpu_exit(cpu_single_env);
4131 cpu_single_env->stop = 1;
4142 static void host_main_loop_wait(int *timeout)
4148 /* XXX: need to suppress polling by better using win32 events */
4150 for(pe = first_polling_entry; pe != NULL; pe = pe->next) {
4151 ret |= pe->func(pe->opaque);
4155 WaitObjects *w = &wait_objects;
4157 ret = WaitForMultipleObjects(w->num, w->events, FALSE, *timeout);
4158 if (WAIT_OBJECT_0 + 0 <= ret && ret <= WAIT_OBJECT_0 + w->num - 1) {
4159 if (w->func[ret - WAIT_OBJECT_0])
4160 w->func[ret - WAIT_OBJECT_0](w->opaque[ret - WAIT_OBJECT_0]);
4162 /* Check for additional signaled events */
4163 for(i = (ret - WAIT_OBJECT_0 + 1); i < w->num; i++) {
4165 /* Check if event is signaled */
4166 ret2 = WaitForSingleObject(w->events[i], 0);
4167 if(ret2 == WAIT_OBJECT_0) {
4169 w->func[i](w->opaque[i]);
4170 } else if (ret2 == WAIT_TIMEOUT) {
4172 err = GetLastError();
4173 fprintf(stderr, "WaitForSingleObject error %d %d\n", i, err);
4176 } else if (ret == WAIT_TIMEOUT) {
4178 err = GetLastError();
4179 fprintf(stderr, "WaitForMultipleObjects error %d %d\n", ret, err);
4186 static void host_main_loop_wait(int *timeout)
4191 void main_loop_wait(int timeout)
4193 IOHandlerRecord *ioh;
4194 fd_set rfds, wfds, xfds;
4198 qemu_bh_update_timeout(&timeout);
4200 host_main_loop_wait(&timeout);
4202 /* poll any events */
4203 /* XXX: separate device handlers from system ones */
4208 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4212 (!ioh->fd_read_poll ||
4213 ioh->fd_read_poll(ioh->opaque) != 0)) {
4214 FD_SET(ioh->fd, &rfds);
4218 if (ioh->fd_write) {
4219 FD_SET(ioh->fd, &wfds);
4225 tv.tv_sec = timeout / 1000;
4226 tv.tv_usec = (timeout % 1000) * 1000;
4228 #if defined(CONFIG_SLIRP)
4229 if (slirp_is_inited()) {
4230 slirp_select_fill(&nfds, &rfds, &wfds, &xfds);
4233 qemu_mutex_unlock_iothread();
4234 ret = select(nfds + 1, &rfds, &wfds, &xfds, &tv);
4235 qemu_mutex_lock_iothread();
4237 IOHandlerRecord **pioh;
4239 for(ioh = first_io_handler; ioh != NULL; ioh = ioh->next) {
4240 if (!ioh->deleted && ioh->fd_read && FD_ISSET(ioh->fd, &rfds)) {
4241 ioh->fd_read(ioh->opaque);
4243 if (!ioh->deleted && ioh->fd_write && FD_ISSET(ioh->fd, &wfds)) {
4244 ioh->fd_write(ioh->opaque);
4248 /* remove deleted IO handlers */
4249 pioh = &first_io_handler;
4259 #if defined(CONFIG_SLIRP)
4260 if (slirp_is_inited()) {
4266 slirp_select_poll(&rfds, &wfds, &xfds);
4270 /* rearm timer, if not periodic */
4271 if (alarm_timer->flags & ALARM_FLAG_EXPIRED) {
4272 alarm_timer->flags &= ~ALARM_FLAG_EXPIRED;
4273 qemu_rearm_alarm_timer(alarm_timer);
4276 /* vm time timers */
4278 if (!cur_cpu || likely(!(cur_cpu->singlestep_enabled & SSTEP_NOTIMER)))
4279 qemu_run_timers(&active_timers[QEMU_TIMER_VIRTUAL],
4280 qemu_get_clock(vm_clock));
4283 /* real time timers */
4284 qemu_run_timers(&active_timers[QEMU_TIMER_REALTIME],
4285 qemu_get_clock(rt_clock));
4287 /* Check bottom-halves last in case any of the earlier events triggered
4293 static int qemu_cpu_exec(CPUState *env)
4296 #ifdef CONFIG_PROFILER
4300 #ifdef CONFIG_PROFILER
4301 ti = profile_getclock();
4306 qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
4307 env->icount_decr.u16.low = 0;
4308 env->icount_extra = 0;
4309 count = qemu_next_deadline();
4310 count = (count + (1 << icount_time_shift) - 1)
4311 >> icount_time_shift;
4312 qemu_icount += count;
4313 decr = (count > 0xffff) ? 0xffff : count;
4315 env->icount_decr.u16.low = decr;
4316 env->icount_extra = count;
4318 ret = cpu_exec(env);
4319 #ifdef CONFIG_PROFILER
4320 qemu_time += profile_getclock() - ti;
4323 /* Fold pending instructions back into the
4324 instruction counter, and clear the interrupt flag. */
4325 qemu_icount -= (env->icount_decr.u16.low
4326 + env->icount_extra);
4327 env->icount_decr.u32 = 0;
4328 env->icount_extra = 0;
4333 static void tcg_cpu_exec(void)
4337 if (next_cpu == NULL)
4338 next_cpu = first_cpu;
4339 for (; next_cpu != NULL; next_cpu = next_cpu->next_cpu) {
4340 CPUState *env = cur_cpu = next_cpu;
4344 if (timer_alarm_pending) {
4345 timer_alarm_pending = 0;
4348 if (cpu_can_run(env))
4349 ret = qemu_cpu_exec(env);
4350 if (ret == EXCP_DEBUG) {
4351 gdb_set_stop_cpu(env);
4352 debug_requested = 1;
4358 static int cpu_has_work(CPUState *env)
4366 if (qemu_cpu_has_work(env))
4371 static int tcg_has_work(void)
4375 for (env = first_cpu; env != NULL; env = env->next_cpu)
4376 if (cpu_has_work(env))
4381 static int qemu_calculate_timeout(void)
4387 else if (tcg_has_work())
4389 else if (!use_icount)
4392 /* XXX: use timeout computed from timers */
4395 /* Advance virtual time to the next event. */
4396 if (use_icount == 1) {
4397 /* When not using an adaptive execution frequency
4398 we tend to get badly out of sync with real time,
4399 so just delay for a reasonable amount of time. */
4402 delta = cpu_get_icount() - cpu_get_clock();
4405 /* If virtual time is ahead of real time then just
4407 timeout = (delta / 1000000) + 1;
4409 /* Wait for either IO to occur or the next
4411 add = qemu_next_deadline();
4412 /* We advance the timer before checking for IO.
4413 Limit the amount we advance so that early IO
4414 activity won't get the guest too far ahead. */
4418 add = (add + (1 << icount_time_shift) - 1)
4419 >> icount_time_shift;
4421 timeout = delta / 1000000;
4430 static int vm_can_run(void)
4432 if (powerdown_requested)
4434 if (reset_requested)
4436 if (shutdown_requested)
4438 if (debug_requested)
4443 static void main_loop(void)
4447 #ifdef CONFIG_IOTHREAD
4448 qemu_system_ready = 1;
4449 qemu_cond_broadcast(&qemu_system_cond);
4454 #ifdef CONFIG_PROFILER
4457 #ifndef CONFIG_IOTHREAD
4460 #ifdef CONFIG_PROFILER
4461 ti = profile_getclock();
4463 #ifdef CONFIG_IOTHREAD
4464 main_loop_wait(1000);
4466 main_loop_wait(qemu_calculate_timeout());
4468 #ifdef CONFIG_PROFILER
4469 dev_time += profile_getclock() - ti;
4471 } while (vm_can_run());
4473 if (qemu_debug_requested())
4474 vm_stop(EXCP_DEBUG);
4475 if (qemu_shutdown_requested()) {
4482 if (qemu_reset_requested()) {
4484 qemu_system_reset();
4487 if (qemu_powerdown_requested())
4488 qemu_system_powerdown();
4489 if ((r = qemu_vmstop_requested()))
4495 static void version(void)
4497 printf("QEMU PC emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
4500 static void help(int exitcode)
4503 printf("usage: %s [options] [disk_image]\n"
4505 "'disk_image' is a raw hard image image for IDE hard disk 0\n"
4507 #define DEF(option, opt_arg, opt_enum, opt_help) \
4509 #define DEFHEADING(text) stringify(text) "\n"
4510 #include "qemu-options.h"
4515 "During emulation, the following keys are useful:\n"
4516 "ctrl-alt-f toggle full screen\n"
4517 "ctrl-alt-n switch to virtual console 'n'\n"
4518 "ctrl-alt toggle mouse and keyboard grab\n"
4520 "When using -nographic, press 'ctrl-a h' to get some help.\n"
4525 DEFAULT_NETWORK_SCRIPT,
4526 DEFAULT_NETWORK_DOWN_SCRIPT,
4528 DEFAULT_GDBSTUB_PORT,
4533 #define HAS_ARG 0x0001
4536 #define DEF(option, opt_arg, opt_enum, opt_help) \
4538 #define DEFHEADING(text)
4539 #include "qemu-options.h"
4545 typedef struct QEMUOption {
4551 static const QEMUOption qemu_options[] = {
4552 { "h", 0, QEMU_OPTION_h },
4553 #define DEF(option, opt_arg, opt_enum, opt_help) \
4554 { option, opt_arg, opt_enum },
4555 #define DEFHEADING(text)
4556 #include "qemu-options.h"
4564 struct soundhw soundhw[] = {
4565 #ifdef HAS_AUDIO_CHOICE
4566 #if defined(TARGET_I386) || defined(TARGET_MIPS)
4572 { .init_isa = pcspk_audio_init }
4579 "Creative Sound Blaster 16",
4582 { .init_isa = SB16_init }
4586 #ifdef CONFIG_CS4231A
4592 { .init_isa = cs4231a_init }
4600 "Yamaha YMF262 (OPL3)",
4602 "Yamaha YM3812 (OPL2)",
4606 { .init_isa = Adlib_init }
4613 "Gravis Ultrasound GF1",
4616 { .init_isa = GUS_init }
4623 "Intel 82801AA AC97 Audio",
4626 { .init_pci = ac97_init }
4630 #ifdef CONFIG_ES1370
4633 "ENSONIQ AudioPCI ES1370",
4636 { .init_pci = es1370_init }
4640 #endif /* HAS_AUDIO_CHOICE */
4642 { NULL, NULL, 0, 0, { NULL } }
4645 static void select_soundhw (const char *optarg)
4649 if (*optarg == '?') {
4652 printf ("Valid sound card names (comma separated):\n");
4653 for (c = soundhw; c->name; ++c) {
4654 printf ("%-11s %s\n", c->name, c->descr);
4656 printf ("\n-soundhw all will enable all of the above\n");
4657 exit (*optarg != '?');
4665 if (!strcmp (optarg, "all")) {
4666 for (c = soundhw; c->name; ++c) {
4674 e = strchr (p, ',');
4675 l = !e ? strlen (p) : (size_t) (e - p);
4677 for (c = soundhw; c->name; ++c) {
4678 if (!strncmp (c->name, p, l)) {
4687 "Unknown sound card name (too big to show)\n");
4690 fprintf (stderr, "Unknown sound card name `%.*s'\n",
4695 p += l + (e != NULL);
4699 goto show_valid_cards;
4704 static void select_vgahw (const char *p)
4708 cirrus_vga_enabled = 0;
4709 std_vga_enabled = 0;
4712 if (strstart(p, "std", &opts)) {
4713 std_vga_enabled = 1;
4714 } else if (strstart(p, "cirrus", &opts)) {
4715 cirrus_vga_enabled = 1;
4716 } else if (strstart(p, "vmware", &opts)) {
4718 } else if (strstart(p, "xenfb", &opts)) {
4720 } else if (!strstart(p, "none", &opts)) {
4722 fprintf(stderr, "Unknown vga type: %s\n", p);
4726 const char *nextopt;
4728 if (strstart(opts, ",retrace=", &nextopt)) {
4730 if (strstart(opts, "dumb", &nextopt))
4731 vga_retrace_method = VGA_RETRACE_DUMB;
4732 else if (strstart(opts, "precise", &nextopt))
4733 vga_retrace_method = VGA_RETRACE_PRECISE;
4734 else goto invalid_vga;
4735 } else goto invalid_vga;
4741 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
4743 exit(STATUS_CONTROL_C_EXIT);
4748 int qemu_uuid_parse(const char *str, uint8_t *uuid)
4752 if(strlen(str) != 36)
4755 ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
4756 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
4757 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14], &uuid[15]);
4763 smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
4769 #define MAX_NET_CLIENTS 32
4773 static void termsig_handler(int signal)
4775 qemu_system_shutdown_request();
4778 static void termsig_setup(void)
4780 struct sigaction act;
4782 memset(&act, 0, sizeof(act));
4783 act.sa_handler = termsig_handler;
4784 sigaction(SIGINT, &act, NULL);
4785 sigaction(SIGHUP, &act, NULL);
4786 sigaction(SIGTERM, &act, NULL);
4791 int main(int argc, char **argv, char **envp)
4793 #ifdef CONFIG_GDBSTUB
4794 const char *gdbstub_dev = NULL;
4796 uint32_t boot_devices_bitmap = 0;
4798 int snapshot, linux_boot, net_boot;
4799 const char *initrd_filename;
4800 const char *kernel_filename, *kernel_cmdline;
4801 const char *boot_devices = "";
4803 DisplayChangeListener *dcl;
4804 int cyls, heads, secs, translation;
4805 const char *net_clients[MAX_NET_CLIENTS];
4807 const char *bt_opts[MAX_BT_CMDLINE];
4811 const char *r, *optarg;
4812 CharDriverState *monitor_hd = NULL;
4813 const char *monitor_device;
4814 const char *serial_devices[MAX_SERIAL_PORTS];
4815 int serial_device_index;
4816 const char *parallel_devices[MAX_PARALLEL_PORTS];
4817 int parallel_device_index;
4818 const char *virtio_consoles[MAX_VIRTIO_CONSOLES];
4819 int virtio_console_index;
4820 const char *loadvm = NULL;
4821 QEMUMachine *machine;
4822 const char *cpu_model;
4823 const char *usb_devices[MAX_USB_CMDLINE];
4824 int usb_devices_index;
4829 const char *pid_file = NULL;
4830 const char *incoming = NULL;
4833 struct passwd *pwd = NULL;
4834 const char *chroot_dir = NULL;
4835 const char *run_as = NULL;
4839 qemu_cache_utils_init(envp);
4841 LIST_INIT (&vm_change_state_head);
4844 struct sigaction act;
4845 sigfillset(&act.sa_mask);
4847 act.sa_handler = SIG_IGN;
4848 sigaction(SIGPIPE, &act, NULL);
4851 SetConsoleCtrlHandler(qemu_ctrl_handler, TRUE);
4852 /* Note: cpu_interrupt() is currently not SMP safe, so we force
4853 QEMU to run on a single CPU */
4858 h = GetCurrentProcess();
4859 if (GetProcessAffinityMask(h, &mask, &smask)) {
4860 for(i = 0; i < 32; i++) {
4861 if (mask & (1 << i))
4866 SetProcessAffinityMask(h, mask);
4872 register_machines();
4873 machine = first_machine;
4875 initrd_filename = NULL;
4877 vga_ram_size = VGA_RAM_SIZE;
4881 kernel_filename = NULL;
4882 kernel_cmdline = "";
4883 cyls = heads = secs = 0;
4884 translation = BIOS_ATA_TRANSLATION_AUTO;
4885 monitor_device = "vc:80Cx24C";
4887 serial_devices[0] = "vc:80Cx24C";
4888 for(i = 1; i < MAX_SERIAL_PORTS; i++)
4889 serial_devices[i] = NULL;
4890 serial_device_index = 0;
4892 parallel_devices[0] = "vc:80Cx24C";
4893 for(i = 1; i < MAX_PARALLEL_PORTS; i++)
4894 parallel_devices[i] = NULL;
4895 parallel_device_index = 0;
4897 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++)
4898 virtio_consoles[i] = NULL;
4899 virtio_console_index = 0;
4901 for (i = 0; i < MAX_NODES; i++) {
4903 node_cpumask[i] = 0;
4906 usb_devices_index = 0;
4926 hda_index = drive_add(argv[optind++], HD_ALIAS, 0);
4928 const QEMUOption *popt;
4931 /* Treat --foo the same as -foo. */
4934 popt = qemu_options;
4937 fprintf(stderr, "%s: invalid option -- '%s'\n",
4941 if (!strcmp(popt->name, r + 1))
4945 if (popt->flags & HAS_ARG) {
4946 if (optind >= argc) {
4947 fprintf(stderr, "%s: option '%s' requires an argument\n",
4951 optarg = argv[optind++];
4956 switch(popt->index) {
4958 machine = find_machine(optarg);
4961 printf("Supported machines are:\n");
4962 for(m = first_machine; m != NULL; m = m->next) {
4963 printf("%-10s %s%s\n",
4965 m == first_machine ? " (default)" : "");
4967 exit(*optarg != '?');
4970 case QEMU_OPTION_cpu:
4971 /* hw initialization will check this */
4972 if (*optarg == '?') {
4973 /* XXX: implement xxx_cpu_list for targets that still miss it */
4974 #if defined(cpu_list)
4975 cpu_list(stdout, &fprintf);
4982 case QEMU_OPTION_initrd:
4983 initrd_filename = optarg;
4985 case QEMU_OPTION_hda:
4987 hda_index = drive_add(optarg, HD_ALIAS, 0);
4989 hda_index = drive_add(optarg, HD_ALIAS
4990 ",cyls=%d,heads=%d,secs=%d%s",
4991 0, cyls, heads, secs,
4992 translation == BIOS_ATA_TRANSLATION_LBA ?
4994 translation == BIOS_ATA_TRANSLATION_NONE ?
4995 ",trans=none" : "");
4997 case QEMU_OPTION_hdb:
4998 case QEMU_OPTION_hdc:
4999 case QEMU_OPTION_hdd:
5000 drive_add(optarg, HD_ALIAS, popt->index - QEMU_OPTION_hda);
5002 case QEMU_OPTION_drive:
5003 drive_add(NULL, "%s", optarg);
5005 case QEMU_OPTION_mtdblock:
5006 drive_add(optarg, MTD_ALIAS);
5008 case QEMU_OPTION_sd:
5009 drive_add(optarg, SD_ALIAS);
5011 case QEMU_OPTION_pflash:
5012 drive_add(optarg, PFLASH_ALIAS);
5014 case QEMU_OPTION_snapshot:
5017 case QEMU_OPTION_hdachs:
5021 cyls = strtol(p, (char **)&p, 0);
5022 if (cyls < 1 || cyls > 16383)
5027 heads = strtol(p, (char **)&p, 0);
5028 if (heads < 1 || heads > 16)
5033 secs = strtol(p, (char **)&p, 0);
5034 if (secs < 1 || secs > 63)
5038 if (!strcmp(p, "none"))
5039 translation = BIOS_ATA_TRANSLATION_NONE;
5040 else if (!strcmp(p, "lba"))
5041 translation = BIOS_ATA_TRANSLATION_LBA;
5042 else if (!strcmp(p, "auto"))
5043 translation = BIOS_ATA_TRANSLATION_AUTO;
5046 } else if (*p != '\0') {
5048 fprintf(stderr, "qemu: invalid physical CHS format\n");
5051 if (hda_index != -1)
5052 snprintf(drives_opt[hda_index].opt,
5053 sizeof(drives_opt[hda_index].opt),
5054 HD_ALIAS ",cyls=%d,heads=%d,secs=%d%s",
5055 0, cyls, heads, secs,
5056 translation == BIOS_ATA_TRANSLATION_LBA ?
5058 translation == BIOS_ATA_TRANSLATION_NONE ?
5059 ",trans=none" : "");
5062 case QEMU_OPTION_numa:
5063 if (nb_numa_nodes >= MAX_NODES) {
5064 fprintf(stderr, "qemu: too many NUMA nodes\n");
5069 case QEMU_OPTION_nographic:
5072 #ifdef CONFIG_CURSES
5073 case QEMU_OPTION_curses:
5077 case QEMU_OPTION_portrait:
5080 case QEMU_OPTION_kernel:
5081 kernel_filename = optarg;
5083 case QEMU_OPTION_append:
5084 kernel_cmdline = optarg;
5086 case QEMU_OPTION_cdrom:
5087 drive_add(optarg, CDROM_ALIAS);
5089 case QEMU_OPTION_boot:
5090 boot_devices = optarg;
5091 /* We just do some generic consistency checks */
5093 /* Could easily be extended to 64 devices if needed */
5096 boot_devices_bitmap = 0;
5097 for (p = boot_devices; *p != '\0'; p++) {
5098 /* Allowed boot devices are:
5099 * a b : floppy disk drives
5100 * c ... f : IDE disk drives
5101 * g ... m : machine implementation dependant drives
5102 * n ... p : network devices
5103 * It's up to each machine implementation to check
5104 * if the given boot devices match the actual hardware
5105 * implementation and firmware features.
5107 if (*p < 'a' || *p > 'q') {
5108 fprintf(stderr, "Invalid boot device '%c'\n", *p);
5111 if (boot_devices_bitmap & (1 << (*p - 'a'))) {
5113 "Boot device '%c' was given twice\n",*p);
5116 boot_devices_bitmap |= 1 << (*p - 'a');
5120 case QEMU_OPTION_fda:
5121 case QEMU_OPTION_fdb:
5122 drive_add(optarg, FD_ALIAS, popt->index - QEMU_OPTION_fda);
5125 case QEMU_OPTION_no_fd_bootchk:
5129 case QEMU_OPTION_net:
5130 if (nb_net_clients >= MAX_NET_CLIENTS) {
5131 fprintf(stderr, "qemu: too many network clients\n");
5134 net_clients[nb_net_clients] = optarg;
5138 case QEMU_OPTION_tftp:
5139 tftp_prefix = optarg;
5141 case QEMU_OPTION_bootp:
5142 bootp_filename = optarg;
5145 case QEMU_OPTION_smb:
5146 net_slirp_smb(optarg);
5149 case QEMU_OPTION_redir:
5150 net_slirp_redir(NULL, optarg);
5153 case QEMU_OPTION_bt:
5154 if (nb_bt_opts >= MAX_BT_CMDLINE) {
5155 fprintf(stderr, "qemu: too many bluetooth options\n");
5158 bt_opts[nb_bt_opts++] = optarg;
5161 case QEMU_OPTION_audio_help:
5165 case QEMU_OPTION_soundhw:
5166 select_soundhw (optarg);
5172 case QEMU_OPTION_version:
5176 case QEMU_OPTION_m: {
5180 value = strtoul(optarg, &ptr, 10);
5182 case 0: case 'M': case 'm':
5189 fprintf(stderr, "qemu: invalid ram size: %s\n", optarg);
5193 /* On 32-bit hosts, QEMU is limited by virtual address space */
5194 if (value > (2047 << 20)
5195 #ifndef CONFIG_KQEMU
5196 && HOST_LONG_BITS == 32
5199 fprintf(stderr, "qemu: at most 2047 MB RAM can be simulated\n");
5202 if (value != (uint64_t)(ram_addr_t)value) {
5203 fprintf(stderr, "qemu: ram size too large\n");
5212 const CPULogItem *item;
5214 mask = cpu_str_to_log_mask(optarg);
5216 printf("Log items (comma separated):\n");
5217 for(item = cpu_log_items; item->mask != 0; item++) {
5218 printf("%-10s %s\n", item->name, item->help);
5225 #ifdef CONFIG_GDBSTUB
5227 gdbstub_dev = "tcp::" DEFAULT_GDBSTUB_PORT;
5229 case QEMU_OPTION_gdb:
5230 gdbstub_dev = optarg;
5236 case QEMU_OPTION_bios:
5239 case QEMU_OPTION_singlestep:
5247 keyboard_layout = optarg;
5250 case QEMU_OPTION_localtime:
5253 case QEMU_OPTION_vga:
5254 select_vgahw (optarg);
5256 #if defined(TARGET_PPC) || defined(TARGET_SPARC)
5262 w = strtol(p, (char **)&p, 10);
5265 fprintf(stderr, "qemu: invalid resolution or depth\n");
5271 h = strtol(p, (char **)&p, 10);
5276 depth = strtol(p, (char **)&p, 10);
5277 if (depth != 8 && depth != 15 && depth != 16 &&
5278 depth != 24 && depth != 32)
5280 } else if (*p == '\0') {
5281 depth = graphic_depth;
5288 graphic_depth = depth;
5292 case QEMU_OPTION_echr:
5295 term_escape_char = strtol(optarg, &r, 0);
5297 printf("Bad argument to echr\n");
5300 case QEMU_OPTION_monitor:
5301 monitor_device = optarg;
5303 case QEMU_OPTION_serial:
5304 if (serial_device_index >= MAX_SERIAL_PORTS) {
5305 fprintf(stderr, "qemu: too many serial ports\n");
5308 serial_devices[serial_device_index] = optarg;
5309 serial_device_index++;
5311 case QEMU_OPTION_virtiocon:
5312 if (virtio_console_index >= MAX_VIRTIO_CONSOLES) {
5313 fprintf(stderr, "qemu: too many virtio consoles\n");
5316 virtio_consoles[virtio_console_index] = optarg;
5317 virtio_console_index++;
5319 case QEMU_OPTION_parallel:
5320 if (parallel_device_index >= MAX_PARALLEL_PORTS) {
5321 fprintf(stderr, "qemu: too many parallel ports\n");
5324 parallel_devices[parallel_device_index] = optarg;
5325 parallel_device_index++;
5327 case QEMU_OPTION_loadvm:
5330 case QEMU_OPTION_full_screen:
5334 case QEMU_OPTION_no_frame:
5337 case QEMU_OPTION_alt_grab:
5340 case QEMU_OPTION_no_quit:
5343 case QEMU_OPTION_sdl:
5347 case QEMU_OPTION_pidfile:
5351 case QEMU_OPTION_win2k_hack:
5352 win2k_install_hack = 1;
5354 case QEMU_OPTION_rtc_td_hack:
5357 case QEMU_OPTION_acpitable:
5358 if(acpi_table_add(optarg) < 0) {
5359 fprintf(stderr, "Wrong acpi table provided\n");
5363 case QEMU_OPTION_smbios:
5364 if(smbios_entry_add(optarg) < 0) {
5365 fprintf(stderr, "Wrong smbios provided\n");
5371 case QEMU_OPTION_no_kqemu:
5374 case QEMU_OPTION_kernel_kqemu:
5379 case QEMU_OPTION_enable_kvm:
5386 case QEMU_OPTION_usb:
5389 case QEMU_OPTION_usbdevice:
5391 if (usb_devices_index >= MAX_USB_CMDLINE) {
5392 fprintf(stderr, "Too many USB devices\n");
5395 usb_devices[usb_devices_index] = optarg;
5396 usb_devices_index++;
5398 case QEMU_OPTION_smp:
5399 smp_cpus = atoi(optarg);
5401 fprintf(stderr, "Invalid number of CPUs\n");
5405 case QEMU_OPTION_vnc:
5406 vnc_display = optarg;
5409 case QEMU_OPTION_no_acpi:
5412 case QEMU_OPTION_no_hpet:
5416 case QEMU_OPTION_no_reboot:
5419 case QEMU_OPTION_no_shutdown:
5422 case QEMU_OPTION_show_cursor:
5425 case QEMU_OPTION_uuid:
5426 if(qemu_uuid_parse(optarg, qemu_uuid) < 0) {
5427 fprintf(stderr, "Fail to parse UUID string."
5428 " Wrong format.\n");
5433 case QEMU_OPTION_daemonize:
5437 case QEMU_OPTION_option_rom:
5438 if (nb_option_roms >= MAX_OPTION_ROMS) {
5439 fprintf(stderr, "Too many option ROMs\n");
5442 option_rom[nb_option_roms] = optarg;
5445 #if defined(TARGET_ARM) || defined(TARGET_M68K)
5446 case QEMU_OPTION_semihosting:
5447 semihosting_enabled = 1;
5450 case QEMU_OPTION_name:
5453 #if defined(TARGET_SPARC) || defined(TARGET_PPC)
5454 case QEMU_OPTION_prom_env:
5455 if (nb_prom_envs >= MAX_PROM_ENVS) {
5456 fprintf(stderr, "Too many prom variables\n");
5459 prom_envs[nb_prom_envs] = optarg;
5464 case QEMU_OPTION_old_param:
5468 case QEMU_OPTION_clock:
5469 configure_alarms(optarg);
5471 case QEMU_OPTION_startdate:
5474 time_t rtc_start_date;
5475 if (!strcmp(optarg, "now")) {
5476 rtc_date_offset = -1;
5478 if (sscanf(optarg, "%d-%d-%dT%d:%d:%d",
5486 } else if (sscanf(optarg, "%d-%d-%d",
5489 &tm.tm_mday) == 3) {
5498 rtc_start_date = mktimegm(&tm);
5499 if (rtc_start_date == -1) {
5501 fprintf(stderr, "Invalid date format. Valid format are:\n"
5502 "'now' or '2006-06-17T16:01:21' or '2006-06-17'\n");
5505 rtc_date_offset = time(NULL) - rtc_start_date;
5509 case QEMU_OPTION_tb_size:
5510 tb_size = strtol(optarg, NULL, 0);
5514 case QEMU_OPTION_icount:
5516 if (strcmp(optarg, "auto") == 0) {
5517 icount_time_shift = -1;
5519 icount_time_shift = strtol(optarg, NULL, 0);
5522 case QEMU_OPTION_incoming:
5526 case QEMU_OPTION_chroot:
5527 chroot_dir = optarg;
5529 case QEMU_OPTION_runas:
5534 case QEMU_OPTION_xen_domid:
5535 xen_domid = atoi(optarg);
5537 case QEMU_OPTION_xen_create:
5538 xen_mode = XEN_CREATE;
5540 case QEMU_OPTION_xen_attach:
5541 xen_mode = XEN_ATTACH;
5548 #if defined(CONFIG_KVM) && defined(CONFIG_KQEMU)
5549 if (kvm_allowed && kqemu_allowed) {
5551 "You can not enable both KVM and kqemu at the same time\n");
5556 machine->max_cpus = machine->max_cpus ?: 1; /* Default to UP */
5557 if (smp_cpus > machine->max_cpus) {
5558 fprintf(stderr, "Number of SMP cpus requested (%d), exceeds max cpus "
5559 "supported by machine `%s' (%d)\n", smp_cpus, machine->name,
5565 if (serial_device_index == 0)
5566 serial_devices[0] = "stdio";
5567 if (parallel_device_index == 0)
5568 parallel_devices[0] = "null";
5569 if (strncmp(monitor_device, "vc", 2) == 0)
5570 monitor_device = "stdio";
5577 if (pipe(fds) == -1)
5588 len = read(fds[0], &status, 1);
5589 if (len == -1 && (errno == EINTR))
5594 else if (status == 1) {
5595 fprintf(stderr, "Could not acquire pidfile\n");
5612 signal(SIGTSTP, SIG_IGN);
5613 signal(SIGTTOU, SIG_IGN);
5614 signal(SIGTTIN, SIG_IGN);
5617 if (pid_file && qemu_create_pidfile(pid_file) != 0) {
5620 write(fds[1], &status, 1);
5622 fprintf(stderr, "Could not acquire pid file\n");
5631 if (qemu_init_main_loop()) {
5632 fprintf(stderr, "qemu_init_main_loop failed\n");
5635 linux_boot = (kernel_filename != NULL);
5636 net_boot = (boot_devices_bitmap >> ('n' - 'a')) & 0xF;
5638 if (!linux_boot && *kernel_cmdline != '\0') {
5639 fprintf(stderr, "-append only allowed with -kernel option\n");
5643 if (!linux_boot && initrd_filename != NULL) {
5644 fprintf(stderr, "-initrd only allowed with -kernel option\n");
5648 /* boot to floppy or the default cd if no hard disk defined yet */
5649 if (!boot_devices[0]) {
5650 boot_devices = "cad";
5652 setvbuf(stdout, NULL, _IOLBF, 0);
5655 if (init_timer_alarm() < 0) {
5656 fprintf(stderr, "could not initialize alarm timer\n");
5659 if (use_icount && icount_time_shift < 0) {
5661 /* 125MIPS seems a reasonable initial guess at the guest speed.
5662 It will be corrected fairly quickly anyway. */
5663 icount_time_shift = 3;
5664 init_icount_adjust();
5671 /* init network clients */
5672 if (nb_net_clients == 0) {
5673 /* if no clients, we use a default config */
5674 net_clients[nb_net_clients++] = "nic";
5676 net_clients[nb_net_clients++] = "user";
5680 for(i = 0;i < nb_net_clients; i++) {
5681 if (net_client_parse(net_clients[i]) < 0)
5687 /* XXX: this should be moved in the PC machine instantiation code */
5688 if (net_boot != 0) {
5690 for (i = 0; i < nb_nics && i < 4; i++) {
5691 const char *model = nd_table[i].model;
5693 if (net_boot & (1 << i)) {
5696 snprintf(buf, sizeof(buf), "%s/pxe-%s.bin", bios_dir, model);
5697 if (get_image_size(buf) > 0) {
5698 if (nb_option_roms >= MAX_OPTION_ROMS) {
5699 fprintf(stderr, "Too many option ROMs\n");
5702 option_rom[nb_option_roms] = strdup(buf);
5709 fprintf(stderr, "No valid PXE rom found for network device\n");
5715 /* init the bluetooth world */
5716 for (i = 0; i < nb_bt_opts; i++)
5717 if (bt_parse(bt_opts[i]))
5720 /* init the memory */
5722 ram_size = DEFAULT_RAM_SIZE * 1024 * 1024;
5725 /* FIXME: This is a nasty hack because kqemu can't cope with dynamic
5726 guest ram allocation. It needs to go away. */
5727 if (kqemu_allowed) {
5728 kqemu_phys_ram_size = ram_size + VGA_RAM_SIZE + 4 * 1024 * 1024;
5729 kqemu_phys_ram_base = qemu_vmalloc(kqemu_phys_ram_size);
5730 if (!kqemu_phys_ram_base) {
5731 fprintf(stderr, "Could not allocate physical memory\n");
5737 /* init the dynamic translator */
5738 cpu_exec_init_all(tb_size * 1024 * 1024);
5743 /* we always create the cdrom drive, even if no disk is there */
5745 if (nb_drives_opt < MAX_DRIVES)
5746 drive_add(NULL, CDROM_ALIAS);
5748 /* we always create at least one floppy */
5750 if (nb_drives_opt < MAX_DRIVES)
5751 drive_add(NULL, FD_ALIAS, 0);
5753 /* we always create one sd slot, even if no card is in it */
5755 if (nb_drives_opt < MAX_DRIVES)
5756 drive_add(NULL, SD_ALIAS);
5758 /* open the virtual block devices */
5760 for(i = 0; i < nb_drives_opt; i++)
5761 if (drive_init(&drives_opt[i], snapshot, machine) == -1)
5764 register_savevm("timer", 0, 2, timer_save, timer_load, NULL);
5765 register_savevm_live("ram", 0, 3, ram_save_live, NULL, ram_load, NULL);
5768 /* must be after terminal init, SDL library changes signal handlers */
5772 /* Maintain compatibility with multiple stdio monitors */
5773 if (!strcmp(monitor_device,"stdio")) {
5774 for (i = 0; i < MAX_SERIAL_PORTS; i++) {
5775 const char *devname = serial_devices[i];
5776 if (devname && !strcmp(devname,"mon:stdio")) {
5777 monitor_device = NULL;
5779 } else if (devname && !strcmp(devname,"stdio")) {
5780 monitor_device = NULL;
5781 serial_devices[i] = "mon:stdio";
5787 if (nb_numa_nodes > 0) {
5790 if (nb_numa_nodes > smp_cpus) {
5791 nb_numa_nodes = smp_cpus;
5794 /* If no memory size if given for any node, assume the default case
5795 * and distribute the available memory equally across all nodes
5797 for (i = 0; i < nb_numa_nodes; i++) {
5798 if (node_mem[i] != 0)
5801 if (i == nb_numa_nodes) {
5802 uint64_t usedmem = 0;
5804 /* On Linux, the each node's border has to be 8MB aligned,
5805 * the final node gets the rest.
5807 for (i = 0; i < nb_numa_nodes - 1; i++) {
5808 node_mem[i] = (ram_size / nb_numa_nodes) & ~((1 << 23UL) - 1);
5809 usedmem += node_mem[i];
5811 node_mem[i] = ram_size - usedmem;
5814 for (i = 0; i < nb_numa_nodes; i++) {
5815 if (node_cpumask[i] != 0)
5818 /* assigning the VCPUs round-robin is easier to implement, guest OSes
5819 * must cope with this anyway, because there are BIOSes out there in
5820 * real machines which also use this scheme.
5822 if (i == nb_numa_nodes) {
5823 for (i = 0; i < smp_cpus; i++) {
5824 node_cpumask[i % nb_numa_nodes] |= 1 << i;
5829 if (kvm_enabled()) {
5832 ret = kvm_init(smp_cpus);
5834 fprintf(stderr, "failed to initialize KVM\n");
5839 if (monitor_device) {
5840 monitor_hd = qemu_chr_open("monitor", monitor_device, NULL);
5842 fprintf(stderr, "qemu: could not open monitor device '%s'\n", monitor_device);
5847 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5848 const char *devname = serial_devices[i];
5849 if (devname && strcmp(devname, "none")) {
5851 snprintf(label, sizeof(label), "serial%d", i);
5852 serial_hds[i] = qemu_chr_open(label, devname, NULL);
5853 if (!serial_hds[i]) {
5854 fprintf(stderr, "qemu: could not open serial device '%s'\n",
5861 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5862 const char *devname = parallel_devices[i];
5863 if (devname && strcmp(devname, "none")) {
5865 snprintf(label, sizeof(label), "parallel%d", i);
5866 parallel_hds[i] = qemu_chr_open(label, devname, NULL);
5867 if (!parallel_hds[i]) {
5868 fprintf(stderr, "qemu: could not open parallel device '%s'\n",
5875 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5876 const char *devname = virtio_consoles[i];
5877 if (devname && strcmp(devname, "none")) {
5879 snprintf(label, sizeof(label), "virtcon%d", i);
5880 virtcon_hds[i] = qemu_chr_open(label, devname, NULL);
5881 if (!virtcon_hds[i]) {
5882 fprintf(stderr, "qemu: could not open virtio console '%s'\n",
5889 machine->init(ram_size, vga_ram_size, boot_devices,
5890 kernel_filename, kernel_cmdline, initrd_filename, cpu_model);
5893 for (env = first_cpu; env != NULL; env = env->next_cpu) {
5894 for (i = 0; i < nb_numa_nodes; i++) {
5895 if (node_cpumask[i] & (1 << env->cpu_index)) {
5901 current_machine = machine;
5903 /* Set KVM's vcpu state to qemu's initial CPUState. */
5904 if (kvm_enabled()) {
5907 ret = kvm_sync_vcpus();
5909 fprintf(stderr, "failed to initialize vcpus\n");
5914 /* init USB devices */
5916 for(i = 0; i < usb_devices_index; i++) {
5917 if (usb_device_add(usb_devices[i], 0) < 0) {
5918 fprintf(stderr, "Warning: could not add USB device %s\n",
5925 dumb_display_init();
5926 /* just use the first displaystate for the moment */
5931 fprintf(stderr, "fatal: -nographic can't be used with -curses\n");
5935 #if defined(CONFIG_CURSES)
5937 /* At the moment curses cannot be used with other displays */
5938 curses_display_init(ds, full_screen);
5942 if (vnc_display != NULL) {
5943 vnc_display_init(ds);
5944 if (vnc_display_open(ds, vnc_display) < 0)
5947 #if defined(CONFIG_SDL)
5948 if (sdl || !vnc_display)
5949 sdl_display_init(ds, full_screen, no_frame);
5950 #elif defined(CONFIG_COCOA)
5951 if (sdl || !vnc_display)
5952 cocoa_display_init(ds, full_screen);
5958 dcl = ds->listeners;
5959 while (dcl != NULL) {
5960 if (dcl->dpy_refresh != NULL) {
5961 ds->gui_timer = qemu_new_timer(rt_clock, gui_update, ds);
5962 qemu_mod_timer(ds->gui_timer, qemu_get_clock(rt_clock));
5967 if (nographic || (vnc_display && !sdl)) {
5968 nographic_timer = qemu_new_timer(rt_clock, nographic_update, NULL);
5969 qemu_mod_timer(nographic_timer, qemu_get_clock(rt_clock));
5972 text_consoles_set_display(display_state);
5973 qemu_chr_initial_reset();
5975 if (monitor_device && monitor_hd)
5976 monitor_init(monitor_hd, MONITOR_USE_READLINE | MONITOR_IS_DEFAULT);
5978 for(i = 0; i < MAX_SERIAL_PORTS; i++) {
5979 const char *devname = serial_devices[i];
5980 if (devname && strcmp(devname, "none")) {
5982 snprintf(label, sizeof(label), "serial%d", i);
5983 if (strstart(devname, "vc", 0))
5984 qemu_chr_printf(serial_hds[i], "serial%d console\r\n", i);
5988 for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
5989 const char *devname = parallel_devices[i];
5990 if (devname && strcmp(devname, "none")) {
5992 snprintf(label, sizeof(label), "parallel%d", i);
5993 if (strstart(devname, "vc", 0))
5994 qemu_chr_printf(parallel_hds[i], "parallel%d console\r\n", i);
5998 for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
5999 const char *devname = virtio_consoles[i];
6000 if (virtcon_hds[i] && devname) {
6002 snprintf(label, sizeof(label), "virtcon%d", i);
6003 if (strstart(devname, "vc", 0))
6004 qemu_chr_printf(virtcon_hds[i], "virtio console%d\r\n", i);
6008 #ifdef CONFIG_GDBSTUB
6009 if (gdbstub_dev && gdbserver_start(gdbstub_dev) < 0) {
6010 fprintf(stderr, "qemu: could not open gdbserver on device '%s'\n",
6017 do_loadvm(cur_mon, loadvm);
6020 autostart = 0; /* fixme how to deal with -daemonize */
6021 qemu_start_incoming_migration(incoming);
6033 len = write(fds[1], &status, 1);
6034 if (len == -1 && (errno == EINTR))
6041 TFR(fd = open("/dev/null", O_RDWR));
6047 pwd = getpwnam(run_as);
6049 fprintf(stderr, "User \"%s\" doesn't exist\n", run_as);
6055 if (chroot(chroot_dir) < 0) {
6056 fprintf(stderr, "chroot failed\n");
6063 if (setgid(pwd->pw_gid) < 0) {
6064 fprintf(stderr, "Failed to setgid(%d)\n", pwd->pw_gid);
6067 if (setuid(pwd->pw_uid) < 0) {
6068 fprintf(stderr, "Failed to setuid(%d)\n", pwd->pw_uid);
6071 if (setuid(0) != -1) {
6072 fprintf(stderr, "Dropping privileges failed\n");