vl.c 216 KB
Newer Older
1
/*
bellard's avatar
bellard committed
2
 * QEMU System Emulator
3
 *
bellard's avatar
bellard committed
4
 * Copyright (c) 2003-2007 Fabrice Bellard
5
 *
bellard's avatar
bellard committed
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
23
 */
bellard's avatar
bellard committed
24 25
#include "vl.h"

26 27 28 29 30
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <time.h>
#include <errno.h>
bellard's avatar
bellard committed
31
#include <sys/time.h>
32
#include <zlib.h>
bellard's avatar
bellard committed
33 34 35

#ifndef _WIN32
#include <sys/times.h>
bellard's avatar
bellard committed
36
#include <sys/wait.h>
bellard's avatar
bellard committed
37 38 39
#include <termios.h>
#include <sys/poll.h>
#include <sys/mman.h>
bellard's avatar
bellard committed
40 41
#include <sys/ioctl.h>
#include <sys/socket.h>
bellard's avatar
bellard committed
42
#include <netinet/in.h>
bellard's avatar
bellard committed
43
#include <dirent.h>
bellard's avatar
bellard committed
44
#include <netdb.h>
45 46
#include <sys/select.h>
#include <arpa/inet.h>
bellard's avatar
bellard committed
47 48
#ifdef _BSD
#include <sys/stat.h>
49
#ifndef __APPLE__
bellard's avatar
bellard committed
50
#include <libutil.h>
51
#endif
ths's avatar
ths committed
52 53
#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
#include <freebsd/stdlib.h>
bellard's avatar
bellard committed
54
#else
bellard's avatar
bellard committed
55
#ifndef __sun__
bellard's avatar
bellard committed
56 57
#include <linux/if.h>
#include <linux/if_tun.h>
bellard's avatar
bellard committed
58 59
#include <pty.h>
#include <malloc.h>
60
#include <linux/rtc.h>
ths's avatar
ths committed
61 62 63 64 65 66

/* For the benefit of older linux systems which don't supply it,
   we use a local copy of hpet.h. */
/* #include <linux/hpet.h> */
#include "hpet.h"

bellard's avatar
bellard committed
67
#include <linux/ppdev.h>
68
#include <linux/parport.h>
69 70 71 72 73 74 75 76 77 78 79 80 81 82
#else
#include <sys/stat.h>
#include <sys/ethernet.h>
#include <sys/sockio.h>
#include <netinet/arp.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <netinet/ip_icmp.h> // must come after ip.h
#include <netinet/udp.h>
#include <netinet/tcp.h>
#include <net/if.h>
#include <syslog.h>
#include <stropts.h>
bellard's avatar
bellard committed
83
#endif
bellard's avatar
bellard committed
84
#endif
85 86 87
#else
#include <winsock2.h>
int inet_aton(const char *cp, struct in_addr *ia);
bellard's avatar
bellard committed
88
#endif
bellard's avatar
bellard committed
89

bellard's avatar
bellard committed
90 91 92 93
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
#endif

bellard's avatar
bellard committed
94
#ifdef _WIN32
bellard's avatar
bellard committed
95
#include <malloc.h>
bellard's avatar
bellard committed
96 97 98 99 100 101
#include <sys/timeb.h>
#include <windows.h>
#define getopt_long_only getopt_long
#define memalign(align, size) malloc(size)
#endif

bellard's avatar
bellard committed
102 103
#include "qemu_socket.h"

bellard's avatar
bellard committed
104
#ifdef CONFIG_SDL
bellard's avatar
bellard committed
105
#ifdef __APPLE__
106
#include <SDL/SDL.h>
bellard's avatar
bellard committed
107
#endif
bellard's avatar
bellard committed
108
#endif /* CONFIG_SDL */
109

110 111 112 113 114
#ifdef CONFIG_COCOA
#undef main
#define main qemu_main
#endif /* CONFIG_COCOA */

115
#include "disas.h"
bellard's avatar
bellard committed
116

117
#include "exec-all.h"
118

119
#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
pbrook's avatar
pbrook committed
120 121 122 123 124
#ifdef __sun__
#define SMBD_COMMAND "/usr/sfw/sbin/smbd"
#else
#define SMBD_COMMAND "/usr/sbin/smbd"
#endif
bellard's avatar
bellard committed
125

126
//#define DEBUG_UNUSED_IOPORT
127
//#define DEBUG_IOPORT
128

129
#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
bellard's avatar
bellard committed
130

bellard's avatar
bellard committed
131 132 133
#ifdef TARGET_PPC
#define DEFAULT_RAM_SIZE 144
#else
134
#define DEFAULT_RAM_SIZE 128
bellard's avatar
bellard committed
135
#endif
136 137
/* in ms */
#define GUI_REFRESH_INTERVAL 30
138

pbrook's avatar
pbrook committed
139 140 141
/* Max number of USB devices that can be specified on the commandline.  */
#define MAX_USB_CMDLINE 8

142 143
/* XXX: use a two level table to limit memory usage */
#define MAX_IOPORTS 65536
144

bellard's avatar
bellard committed
145
const char *bios_dir = CONFIG_QEMU_SHAREDIR;
146
char phys_ram_file[1024];
147
void *ioport_opaque[MAX_IOPORTS];
bellard's avatar
bellard committed
148 149
IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
bellard's avatar
bellard committed
150 151 152
/* Note: bs_table[MAX_DISKS] is a dummy block driver if none available
   to store the VM snapshots */
BlockDriverState *bs_table[MAX_DISKS + 1], *fd_table[MAX_FD];
153
BlockDriverState *pflash_table[MAX_PFLASH];
154
BlockDriverState *sd_bdrv;
155
BlockDriverState *mtd_bdrv;
bellard's avatar
bellard committed
156 157
/* point to the block driver where the snapshots are managed */
BlockDriverState *bs_snapshots;
158 159
int vga_ram_size;
static DisplayState display_state;
160
int nographic;
161
const char* keyboard_layout = NULL;
162
int64_t ticks_per_sec;
163
int boot_device = 'c';
bellard's avatar
bellard committed
164
int ram_size;
bellard's avatar
bellard committed
165
int pit_min_timer_count = 0;
166
int nb_nics;
bellard's avatar
bellard committed
167
NICInfo nd_table[MAX_NICS];
168
int vm_running;
bellard's avatar
bellard committed
169
int rtc_utc = 1;
170
int cirrus_vga_enabled = 1;
171
int vmsvga_enabled = 0;
172 173 174
#ifdef TARGET_SPARC
int graphic_width = 1024;
int graphic_height = 768;
blueswir1's avatar
blueswir1 committed
175
int graphic_depth = 8;
176
#else
177 178
int graphic_width = 800;
int graphic_height = 600;
179
int graphic_depth = 15;
blueswir1's avatar
blueswir1 committed
180
#endif
bellard's avatar
bellard committed
181
int full_screen = 0;
182
int no_frame = 0;
183
int no_quit = 0;
184
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
185
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
186 187 188
#ifdef TARGET_I386
int win2k_install_hack = 0;
#endif
bellard's avatar
bellard committed
189
int usb_enabled = 0;
bellard's avatar
bellard committed
190
static VLANState *first_vlan;
bellard's avatar
bellard committed
191
int smp_cpus = 1;
192
const char *vnc_display;
bellard's avatar
bellard committed
193
#if defined(TARGET_SPARC)
194
#define MAX_CPUS 16
bellard's avatar
bellard committed
195 196
#elif defined(TARGET_I386)
#define MAX_CPUS 255
197
#else
bellard's avatar
bellard committed
198
#define MAX_CPUS 1
199
#endif
bellard's avatar
bellard committed
200
int acpi_enabled = 1;
201
int fd_bootchk = 1;
bellard's avatar
bellard committed
202
int no_reboot = 0;
203
int cursor_hide = 1;
204
int graphic_rotate = 0;
ths's avatar
ths committed
205
int daemonize = 0;
206 207
const char *option_rom[MAX_OPTION_ROMS];
int nb_option_roms;
208
int semihosting_enabled = 0;
209
int autostart = 1;
210 211 212
#ifdef TARGET_ARM
int old_param = 0;
#endif
ths's avatar
ths committed
213
const char *qemu_name;
ths's avatar
ths committed
214
int alt_grab = 0;
blueswir1's avatar
blueswir1 committed
215 216 217 218
#ifdef TARGET_SPARC
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
#endif
219

220 221
#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)

222
/***********************************************************/
223 224 225
/* x86 ISA bus support */

target_phys_addr_t isa_mem_base = 0;
bellard's avatar
bellard committed
226
PicState2 *isa_pic;
227

228
uint32_t default_ioport_readb(void *opaque, uint32_t address)
229 230
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
231
    fprintf(stderr, "unused inb: port=0x%04x\n", address);
232
#endif
bellard's avatar
bellard committed
233
    return 0xff;
234 235
}

236
void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
237 238
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
239
    fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
240 241 242 243
#endif
}

/* default is to make two byte accesses */
244
uint32_t default_ioport_readw(void *opaque, uint32_t address)
245 246
{
    uint32_t data;
bellard's avatar
bellard committed
247 248 249
    data = ioport_read_table[0][address](ioport_opaque[address], address);
    address = (address + 1) & (MAX_IOPORTS - 1);
    data |= ioport_read_table[0][address](ioport_opaque[address], address) << 8;
250 251 252
    return data;
}

253
void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
254
{
bellard's avatar
bellard committed
255 256 257
    ioport_write_table[0][address](ioport_opaque[address], address, data & 0xff);
    address = (address + 1) & (MAX_IOPORTS - 1);
    ioport_write_table[0][address](ioport_opaque[address], address, (data >> 8) & 0xff);
258 259
}

260
uint32_t default_ioport_readl(void *opaque, uint32_t address)
261
{
bellard's avatar
bellard committed
262
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
263
    fprintf(stderr, "unused inl: port=0x%04x\n", address);
bellard's avatar
bellard committed
264 265
#endif
    return 0xffffffff;
266 267
}

268
void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
269
{
bellard's avatar
bellard committed
270
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
271
    fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
bellard's avatar
bellard committed
272
#endif
273 274
}

bellard's avatar
bellard committed
275
void init_ioports(void)
276 277 278
{
    int i;

bellard's avatar
bellard committed
279 280 281 282 283 284 285 286
    for(i = 0; i < MAX_IOPORTS; i++) {
        ioport_read_table[0][i] = default_ioport_readb;
        ioport_write_table[0][i] = default_ioport_writeb;
        ioport_read_table[1][i] = default_ioport_readw;
        ioport_write_table[1][i] = default_ioport_writew;
        ioport_read_table[2][i] = default_ioport_readl;
        ioport_write_table[2][i] = default_ioport_writel;
    }
287 288
}

bellard's avatar
bellard committed
289
/* size is the word size in byte */
290
int register_ioport_read(int start, int length, int size,
291
                         IOPortReadFunc *func, void *opaque)
bellard's avatar
bellard committed
292
{
bellard's avatar
bellard committed
293
    int i, bsize;
bellard's avatar
bellard committed
294

295
    if (size == 1) {
bellard's avatar
bellard committed
296
        bsize = 0;
297
    } else if (size == 2) {
bellard's avatar
bellard committed
298
        bsize = 1;
299
    } else if (size == 4) {
bellard's avatar
bellard committed
300
        bsize = 2;
301 302
    } else {
        hw_error("register_ioport_read: invalid size");
bellard's avatar
bellard committed
303
        return -1;
304 305
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
306
        ioport_read_table[bsize][i] = func;
307 308 309 310
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
            hw_error("register_ioport_read: invalid opaque");
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
311 312 313
    return 0;
}

bellard's avatar
bellard committed
314
/* size is the word size in byte */
315
int register_ioport_write(int start, int length, int size,
316
                          IOPortWriteFunc *func, void *opaque)
bellard's avatar
bellard committed
317
{
bellard's avatar
bellard committed
318
    int i, bsize;
bellard's avatar
bellard committed
319

320
    if (size == 1) {
bellard's avatar
bellard committed
321
        bsize = 0;
322
    } else if (size == 2) {
bellard's avatar
bellard committed
323
        bsize = 1;
324
    } else if (size == 4) {
bellard's avatar
bellard committed
325
        bsize = 2;
326 327
    } else {
        hw_error("register_ioport_write: invalid size");
bellard's avatar
bellard committed
328
        return -1;
329 330
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
331
        ioport_write_table[bsize][i] = func;
332
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
333
            hw_error("register_ioport_write: invalid opaque");
334 335
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
336 337 338
    return 0;
}

bellard's avatar
bellard committed
339 340 341 342 343 344 345 346 347 348 349 350 351 352 353
void isa_unassign_ioport(int start, int length)
{
    int i;

    for(i = start; i < start + length; i++) {
        ioport_read_table[0][i] = default_ioport_readb;
        ioport_read_table[1][i] = default_ioport_readw;
        ioport_read_table[2][i] = default_ioport_readl;

        ioport_write_table[0][i] = default_ioport_writeb;
        ioport_write_table[1][i] = default_ioport_writew;
        ioport_write_table[2][i] = default_ioport_writel;
    }
}

bellard's avatar
bellard committed
354 355
/***********************************************************/

356
void cpu_outb(CPUState *env, int addr, int val)
357
{
358 359 360
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outb: %04x %02x\n", addr, val);
361
#endif
362
    ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
363 364 365 366
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
367 368
}

369
void cpu_outw(CPUState *env, int addr, int val)
370
{
371 372 373
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outw: %04x %04x\n", addr, val);
374
#endif
375
    ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
376 377 378 379
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
380 381
}

382
void cpu_outl(CPUState *env, int addr, int val)
383
{
384 385 386 387
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outl: %04x %08x\n", addr, val);
#endif
388
    ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
389 390 391 392
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
393 394
}

395
int cpu_inb(CPUState *env, int addr)
396
{
397 398 399 400 401
    int val;
    val = ioport_read_table[0][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inb : %04x %02x\n", addr, val);
402 403 404 405
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
406 407
#endif
    return val;
408 409
}

410
int cpu_inw(CPUState *env, int addr)
411
{
412 413 414 415 416
    int val;
    val = ioport_read_table[1][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inw : %04x %04x\n", addr, val);
417 418 419 420
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
421 422
#endif
    return val;
423 424
}

425
int cpu_inl(CPUState *env, int addr)
426
{
427 428 429 430 431
    int val;
    val = ioport_read_table[2][addr](ioport_opaque[addr], addr);
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "inl : %04x %08x\n", addr, val);
432 433 434 435
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
436 437
#endif
    return val;
438 439 440 441 442 443
}

/***********************************************************/
void hw_error(const char *fmt, ...)
{
    va_list ap;
bellard's avatar
bellard committed
444
    CPUState *env;
445 446 447 448 449

    va_start(ap, fmt);
    fprintf(stderr, "qemu: hardware error: ");
    vfprintf(stderr, fmt, ap);
    fprintf(stderr, "\n");
bellard's avatar
bellard committed
450 451
    for(env = first_cpu; env != NULL; env = env->next_cpu) {
        fprintf(stderr, "CPU #%d:\n", env->cpu_index);
452
#ifdef TARGET_I386
bellard's avatar
bellard committed
453
        cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
454
#else
bellard's avatar
bellard committed
455
        cpu_dump_state(env, stderr, fprintf, 0);
456
#endif
bellard's avatar
bellard committed
457
    }
458 459 460 461
    va_end(ap);
    abort();
}

bellard's avatar
bellard committed
462 463 464 465 466
/***********************************************************/
/* keyboard/mouse */

static QEMUPutKBDEvent *qemu_put_kbd_event;
static void *qemu_put_kbd_event_opaque;
467 468
static QEMUPutMouseEntry *qemu_put_mouse_event_head;
static QEMUPutMouseEntry *qemu_put_mouse_event_current;
bellard's avatar
bellard committed
469 470 471 472 473 474 475

void qemu_add_kbd_event_handler(QEMUPutKBDEvent *func, void *opaque)
{
    qemu_put_kbd_event_opaque = opaque;
    qemu_put_kbd_event = func;
}

476 477 478
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                void *opaque, int absolute,
                                                const char *name)
bellard's avatar
bellard committed
479
{
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537
    QEMUPutMouseEntry *s, *cursor;

    s = qemu_mallocz(sizeof(QEMUPutMouseEntry));
    if (!s)
        return NULL;

    s->qemu_put_mouse_event = func;
    s->qemu_put_mouse_event_opaque = opaque;
    s->qemu_put_mouse_event_absolute = absolute;
    s->qemu_put_mouse_event_name = qemu_strdup(name);
    s->next = NULL;

    if (!qemu_put_mouse_event_head) {
        qemu_put_mouse_event_head = qemu_put_mouse_event_current = s;
        return s;
    }

    cursor = qemu_put_mouse_event_head;
    while (cursor->next != NULL)
        cursor = cursor->next;

    cursor->next = s;
    qemu_put_mouse_event_current = s;

    return s;
}

void qemu_remove_mouse_event_handler(QEMUPutMouseEntry *entry)
{
    QEMUPutMouseEntry *prev = NULL, *cursor;

    if (!qemu_put_mouse_event_head || entry == NULL)
        return;

    cursor = qemu_put_mouse_event_head;
    while (cursor != NULL && cursor != entry) {
        prev = cursor;
        cursor = cursor->next;
    }

    if (cursor == NULL) // does not exist or list empty
        return;
    else if (prev == NULL) { // entry is head
        qemu_put_mouse_event_head = cursor->next;
        if (qemu_put_mouse_event_current == entry)
            qemu_put_mouse_event_current = cursor->next;
        qemu_free(entry->qemu_put_mouse_event_name);
        qemu_free(entry);
        return;
    }

    prev->next = entry->next;

    if (qemu_put_mouse_event_current == entry)
        qemu_put_mouse_event_current = prev;

    qemu_free(entry->qemu_put_mouse_event_name);
    qemu_free(entry);
bellard's avatar
bellard committed
538 539 540 541 542 543 544 545 546 547 548
}

void kbd_put_keycode(int keycode)
{
    if (qemu_put_kbd_event) {
        qemu_put_kbd_event(qemu_put_kbd_event_opaque, keycode);
    }
}

void kbd_mouse_event(int dx, int dy, int dz, int buttons_state)
{
549 550
    QEMUPutMouseEvent *mouse_event;
    void *mouse_event_opaque;
551
    int width;
552 553 554 555 556 557 558 559 560 561 562

    if (!qemu_put_mouse_event_current) {
        return;
    }

    mouse_event =
        qemu_put_mouse_event_current->qemu_put_mouse_event;
    mouse_event_opaque =
        qemu_put_mouse_event_current->qemu_put_mouse_event_opaque;

    if (mouse_event) {
563 564 565 566 567 568 569 570 571 572
        if (graphic_rotate) {
            if (qemu_put_mouse_event_current->qemu_put_mouse_event_absolute)
                width = 0x7fff;
            else
                width = graphic_width;
            mouse_event(mouse_event_opaque,
                                 width - dy, dx, dz, buttons_state);
        } else
            mouse_event(mouse_event_opaque,
                                 dx, dy, dz, buttons_state);
bellard's avatar
bellard committed
573 574 575
    }
}

576 577
int kbd_mouse_is_absolute(void)
{
578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624
    if (!qemu_put_mouse_event_current)
        return 0;

    return qemu_put_mouse_event_current->qemu_put_mouse_event_absolute;
}

void do_info_mice(void)
{
    QEMUPutMouseEntry *cursor;
    int index = 0;

    if (!qemu_put_mouse_event_head) {
        term_printf("No mouse devices connected\n");
        return;
    }

    term_printf("Mouse devices available:\n");
    cursor = qemu_put_mouse_event_head;
    while (cursor != NULL) {
        term_printf("%c Mouse #%d: %s\n",
                    (cursor == qemu_put_mouse_event_current ? '*' : ' '),
                    index, cursor->qemu_put_mouse_event_name);
        index++;
        cursor = cursor->next;
    }
}

void do_mouse_set(int index)
{
    QEMUPutMouseEntry *cursor;
    int i = 0;

    if (!qemu_put_mouse_event_head) {
        term_printf("No mouse devices connected\n");
        return;
    }

    cursor = qemu_put_mouse_event_head;
    while (cursor != NULL && index != i) {
        i++;
        cursor = cursor->next;
    }

    if (cursor != NULL)
        qemu_put_mouse_event_current = cursor;
    else
        term_printf("Mouse at given index not found\n");
625 626
}

627 628
/* compute with 96 bit intermediate result: (a*b)/c */
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
629
{
630 631 632 633 634 635 636
    union {
        uint64_t ll;
        struct {
#ifdef WORDS_BIGENDIAN
            uint32_t high, low;
#else
            uint32_t low, high;
637
#endif
638 639 640
        } l;
    } u, res;
    uint64_t rl, rh;
641

642 643 644 645 646 647 648
    u.ll = a;
    rl = (uint64_t)u.l.low * (uint64_t)b;
    rh = (uint64_t)u.l.high * (uint64_t)b;
    rh += (rl >> 32);
    res.l.high = rh / c;
    res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
    return res.ll;
649 650
}

651 652
/***********************************************************/
/* real time host monotonic timer */
653

654
#define QEMU_TIMER_BASE 1000000000LL
655

656
#ifdef WIN32
657

658
static int64_t clock_freq;
bellard's avatar
bellard committed
659

660
static void init_get_clock(void)
bellard's avatar
bellard committed
661
{
662 663
    LARGE_INTEGER freq;
    int ret;
664 665 666 667 668 669
    ret = QueryPerformanceFrequency(&freq);
    if (ret == 0) {
        fprintf(stderr, "Could not calibrate ticks\n");
        exit(1);
    }
    clock_freq = freq.QuadPart;
bellard's avatar
bellard committed
670 671
}

672
static int64_t get_clock(void)
bellard's avatar
bellard committed
673
{
674 675 676
    LARGE_INTEGER ti;
    QueryPerformanceCounter(&ti);
    return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
bellard's avatar
bellard committed
677 678
}

679
#else
bellard's avatar
bellard committed
680

681 682 683
static int use_rt_clock;

static void init_get_clock(void)
bellard's avatar
bellard committed
684
{
685 686 687 688 689 690 691 692 693
    use_rt_clock = 0;
#if defined(__linux__)
    {
        struct timespec ts;
        if (clock_gettime(CLOCK_MONOTONIC, &ts) == 0) {
            use_rt_clock = 1;
        }
    }
#endif
bellard's avatar
bellard committed
694 695
}

696
static int64_t get_clock(void)
bellard's avatar
bellard committed
697
{
698 699 700 701 702
#if defined(__linux__)
    if (use_rt_clock) {
        struct timespec ts;
        clock_gettime(CLOCK_MONOTONIC, &ts);
        return ts.tv_sec * 1000000000LL + ts.tv_nsec;
703
    } else
bellard's avatar
bellard committed
704
#endif
705 706 707 708 709 710 711
    {
        /* XXX: using gettimeofday leads to problems if the date
           changes, so it should be avoided. */
        struct timeval tv;
        gettimeofday(&tv, NULL);
        return tv.tv_sec * 1000000000LL + (tv.tv_usec * 1000);
    }
bellard's avatar
bellard committed
712 713
}

714 715
#endif

716 717 718
/***********************************************************/
/* guest cycle counter */

719
static int64_t cpu_ticks_prev;
720
static int64_t cpu_ticks_offset;
721
static int64_t cpu_clock_offset;
722
static int cpu_ticks_enabled;
723

724 725
/* return the host CPU cycle counter and handle stop/restart */
int64_t cpu_get_ticks(void)
726
{
727 728 729
    if (!cpu_ticks_enabled) {
        return cpu_ticks_offset;
    } else {
730 731 732 733 734 735 736 737 738
        int64_t ticks;
        ticks = cpu_get_real_ticks();
        if (cpu_ticks_prev > ticks) {
            /* Note: non increasing ticks may happen if the host uses
               software suspend */
            cpu_ticks_offset += cpu_ticks_prev - ticks;
        }
        cpu_ticks_prev = ticks;
        return ticks + cpu_ticks_offset;
739
    }
740 741
}

742 743 744 745 746 747 748 749 750 751 752 753
/* return the host CPU monotonic timer and handle stop/restart */
static int64_t cpu_get_clock(void)
{
    int64_t ti;
    if (!cpu_ticks_enabled) {
        return cpu_clock_offset;
    } else {
        ti = get_clock();
        return ti + cpu_clock_offset;
    }
}

754 755 756
/* enable cpu_get_ticks() */
void cpu_enable_ticks(void)
{
757 758
    if (!cpu_ticks_enabled) {
        cpu_ticks_offset -= cpu_get_real_ticks();
759
        cpu_clock_offset -= get_clock();
760 761
        cpu_ticks_enabled = 1;
    }
762 763 764 765 766 767
}

/* disable cpu_get_ticks() : the clock is stopped. You must not call
   cpu_get_ticks() after that.  */
void cpu_disable_ticks(void)
{
768 769
    if (cpu_ticks_enabled) {
        cpu_ticks_offset = cpu_get_ticks();
770
        cpu_clock_offset = cpu_get_clock();
771 772
        cpu_ticks_enabled = 0;
    }
773 774
}

775 776
/***********************************************************/
/* timers */
777

778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793
#define QEMU_TIMER_REALTIME 0
#define QEMU_TIMER_VIRTUAL  1

struct QEMUClock {
    int type;
    /* XXX: add frequency */
};

struct QEMUTimer {
    QEMUClock *clock;
    int64_t expire_time;
    QEMUTimerCB *cb;
    void *opaque;
    struct QEMUTimer *next;
};

794 795
struct qemu_alarm_timer {
    char const *name;
796
    unsigned int flags;
797 798 799

    int (*start)(struct qemu_alarm_timer *t);
    void (*stop)(struct qemu_alarm_timer *t);
800
    void (*rearm)(struct qemu_alarm_timer *t);
801 802 803
    void *priv;
};

804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821
#define ALARM_FLAG_DYNTICKS  0x1

static inline int alarm_has_dynticks(struct qemu_alarm_timer *t)
{
    return t->flags & ALARM_FLAG_DYNTICKS;
}

static void qemu_rearm_alarm_timer(struct qemu_alarm_timer *t)
{
    if (!alarm_has_dynticks(t))
        return;

    t->rearm(t);
}

/* TODO: MIN_TIMER_REARM_US should be optimized */
#define MIN_TIMER_REARM_US 250

822
static struct qemu_alarm_timer *alarm_timer;
823

bellard's avatar
bellard committed
824
#ifdef _WIN32
825 826 827 828 829 830 831 832 833

struct qemu_alarm_win32 {
    MMRESULT timerId;
    HANDLE host_alarm;
    unsigned int period;
} alarm_win32_data = {0, NULL, -1};

static int win32_start_timer(struct qemu_alarm_timer *t);
static void win32_stop_timer(struct qemu_alarm_timer *t);
834
static void win32_rearm_timer(struct qemu_alarm_timer *t);
835

bellard's avatar
bellard committed
836
#else
837 838 839 840

static int unix_start_timer(struct qemu_alarm_timer *t);
static void unix_stop_timer(struct qemu_alarm_timer *t);

841 842
#ifdef __linux__

843 844 845 846
static int dynticks_start_timer(struct qemu_alarm_timer *t);
static void dynticks_stop_timer(struct qemu_alarm_timer *t);
static void dynticks_rearm_timer(struct qemu_alarm_timer *t);

ths's avatar
ths committed
847 848 849
static int hpet_start_timer(struct qemu_alarm_timer *t);
static void hpet_stop_timer(struct qemu_alarm_timer *t);

850 851 852
static int rtc_start_timer(struct qemu_alarm_timer *t);
static void rtc_stop_timer(struct qemu_alarm_timer *t);

853
#endif /* __linux__ */
854

855 856 857
#endif /* _WIN32 */

static struct qemu_alarm_timer alarm_timers[] = {
858
#ifndef _WIN32
859
#ifdef __linux__
860 861
    {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
     dynticks_stop_timer, dynticks_rearm_timer, NULL},
ths's avatar
ths committed
862
    /* HPET - if available - is preferred */
863
    {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
ths's avatar
ths committed
864
    /* ...otherwise try RTC */
865
    {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
866
#endif
867
    {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
868
#else
869 870 871 872
    {"dynticks", ALARM_FLAG_DYNTICKS, win32_start_timer,
     win32_stop_timer, win32_rearm_timer, &alarm_win32_data},
    {"win32", 0, win32_start_timer,
     win32_stop_timer, NULL, &alarm_win32_data},
873 874 875 876
#endif
    {NULL, }
};

877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905
static void show_available_alarms()
{
    int i;

    printf("Available alarm timers, in order of precedence:\n");
    for (i = 0; alarm_timers[i].name; i++)
        printf("%s\n", alarm_timers[i].name);
}

static void configure_alarms(char const *opt)
{
    int i;
    int cur = 0;
    int count = (sizeof(alarm_timers) / sizeof(*alarm_timers)) - 1;
    char *arg;
    char *name;

    if (!strcmp(opt, "help")) {
        show_available_alarms();
        exit(0);
    }

    arg = strdup(opt);

    /* Reorder the array */
    name = strtok(arg, ",");
    while (name) {
        struct qemu_alarm_timer tmp;

906
        for (i = 0; i < count && alarm_timers[i].name; i++) {
907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941
            if (!strcmp(alarm_timers[i].name, name))
                break;
        }

        if (i == count) {
            fprintf(stderr, "Unknown clock %s\n", name);
            goto next;
        }

        if (i < cur)
            /* Ignore */
            goto next;

	/* Swap */
        tmp = alarm_timers[i];
        alarm_timers[i] = alarm_timers[cur];
        alarm_timers[cur] = tmp;

        cur++;
next:
        name = strtok(NULL, ",");
    }

    free(arg);

    if (cur) {
	/* Disable remaining timers */
        for (i = cur; i < count; i++)
            alarm_timers[i].name = NULL;
    }

    /* debug */
    show_available_alarms();
}

942 943 944 945 946
QEMUClock *rt_clock;
QEMUClock *vm_clock;

static QEMUTimer *active_timers[2];

947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008
QEMUClock *qemu_new_clock(int type)
{
    QEMUClock *clock;
    clock = qemu_mallocz(sizeof(QEMUClock));
    if (!clock)
        return NULL;
    clock->type = type;
    return clock;
}

QEMUTimer *qemu_new_timer(QEMUClock *clock, QEMUTimerCB *cb, void *opaque)
{
    QEMUTimer *ts;

    ts = qemu_mallocz(sizeof(QEMUTimer));
    ts->clock = clock;
    ts->cb = cb;
    ts->opaque = opaque;
    return ts;
}

void qemu_free_timer(QEMUTimer *ts)
{
    qemu_free(ts);
}

/* stop a timer, but do not dealloc it */
void qemu_del_timer(QEMUTimer *ts)
{
    QEMUTimer **pt, *t;

    /* NOTE: this code must be signal safe because
       qemu_timer_expired() can be called from a signal. */
    pt = &active_timers[ts->clock->type];
    for(;;) {
        t = *pt;
        if (!t)
            break;
        if (t == ts) {
            *pt = t->next;
            break;
        }
        pt = &t->next;
    }
}

/* modify the current timer so that it will be fired when current_time
   >= expire_time. The corresponding callback will be called. */
void qemu_mod_timer(QEMUTimer *ts, int64_t expire_time)
{
    QEMUTimer **pt, *t;

    qemu_del_timer(ts);

    /* add the timer in the sorted list */
    /* NOTE: this code must be signal safe because
       qemu_timer_expired() can be called from a signal. */
    pt = &active_timers[ts->clock->type];
    for(;;) {
        t = *pt;
        if (!t)
            break;
1009
        if (t->expire_time > expire_time)
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037
            break;
        pt = &t->next;
    }
    ts->expire_time = expire_time;
    ts->next = *pt;
    *pt = ts;
}

int qemu_timer_pending(QEMUTimer *ts)
{
    QEMUTimer *t;
    for(t = active_timers[ts->clock->type]; t != NULL; t = t->next) {
        if (t == ts)
            return 1;
    }
    return 0;
}

static inline int qemu_timer_expired(QEMUTimer *timer_head, int64_t current_time)
{
    if (!timer_head)
        return 0;
    return (timer_head->expire_time <= current_time);
}

static void qemu_run_timers(QEMUTimer **ptimer_head, int64_t current_time)
{
    QEMUTimer *ts;
1038

bellard's avatar