vl.c 217 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
#include <linux/hpet.h>
bellard's avatar
bellard committed
62
#include <linux/ppdev.h>
63
#include <linux/parport.h>
64 65 66 67 68 69 70 71 72 73 74 75 76 77
#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
78
#endif
bellard's avatar
bellard committed
79
#endif
80 81 82
#else
#include <winsock2.h>
int inet_aton(const char *cp, struct in_addr *ia);
bellard's avatar
bellard committed
83
#endif
bellard's avatar
bellard committed
84

bellard's avatar
bellard committed
85 86 87 88
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
#endif

bellard's avatar
bellard committed
89
#ifdef _WIN32
bellard's avatar
bellard committed
90
#include <malloc.h>
bellard's avatar
bellard committed
91 92 93 94 95 96
#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
97 98
#include "qemu_socket.h"

bellard's avatar
bellard committed
99
#ifdef CONFIG_SDL
bellard's avatar
bellard committed
100
#ifdef __APPLE__
101
#include <SDL/SDL.h>
bellard's avatar
bellard committed
102
#endif
bellard's avatar
bellard committed
103
#endif /* CONFIG_SDL */
104

105 106 107 108 109
#ifdef CONFIG_COCOA
#undef main
#define main qemu_main
#endif /* CONFIG_COCOA */

110
#include "disas.h"
bellard's avatar
bellard committed
111

112
#include "exec-all.h"
113

114
#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
pbrook's avatar
pbrook committed
115 116 117 118 119
#ifdef __sun__
#define SMBD_COMMAND "/usr/sfw/sbin/smbd"
#else
#define SMBD_COMMAND "/usr/sbin/smbd"
#endif
bellard's avatar
bellard committed
120

121
//#define DEBUG_UNUSED_IOPORT
122
//#define DEBUG_IOPORT
123

124
#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
bellard's avatar
bellard committed
125

bellard's avatar
bellard committed
126 127 128
#ifdef TARGET_PPC
#define DEFAULT_RAM_SIZE 144
#else
129
#define DEFAULT_RAM_SIZE 128
bellard's avatar
bellard committed
130
#endif
131 132
/* in ms */
#define GUI_REFRESH_INTERVAL 30
133

pbrook's avatar
pbrook committed
134 135 136
/* Max number of USB devices that can be specified on the commandline.  */
#define MAX_USB_CMDLINE 8

137 138
/* XXX: use a two level table to limit memory usage */
#define MAX_IOPORTS 65536
139

bellard's avatar
bellard committed
140
const char *bios_dir = CONFIG_QEMU_SHAREDIR;
141
char phys_ram_file[1024];
142
void *ioport_opaque[MAX_IOPORTS];
bellard's avatar
bellard committed
143 144
IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
bellard's avatar
bellard committed
145 146 147
/* 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];
148
BlockDriverState *pflash_table[MAX_PFLASH];
149
BlockDriverState *sd_bdrv;
150
BlockDriverState *mtd_bdrv;
bellard's avatar
bellard committed
151 152
/* point to the block driver where the snapshots are managed */
BlockDriverState *bs_snapshots;
153 154
int vga_ram_size;
static DisplayState display_state;
155
int nographic;
156
const char* keyboard_layout = NULL;
157
int64_t ticks_per_sec;
158
int boot_device = 'c';
bellard's avatar
bellard committed
159
int ram_size;
bellard's avatar
bellard committed
160
int pit_min_timer_count = 0;
161
int nb_nics;
bellard's avatar
bellard committed
162
NICInfo nd_table[MAX_NICS];
163
int vm_running;
bellard's avatar
bellard committed
164
int rtc_utc = 1;
165
int cirrus_vga_enabled = 1;
166
int vmsvga_enabled = 0;
167 168 169
#ifdef TARGET_SPARC
int graphic_width = 1024;
int graphic_height = 768;
blueswir1's avatar
blueswir1 committed
170
int graphic_depth = 8;
171
#else
172 173
int graphic_width = 800;
int graphic_height = 600;
174
int graphic_depth = 15;
blueswir1's avatar
blueswir1 committed
175
#endif
bellard's avatar
bellard committed
176
int full_screen = 0;
177
int no_frame = 0;
178
int no_quit = 0;
179
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
180
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
181 182 183
#ifdef TARGET_I386
int win2k_install_hack = 0;
#endif
bellard's avatar
bellard committed
184
int usb_enabled = 0;
bellard's avatar
bellard committed
185
static VLANState *first_vlan;
bellard's avatar
bellard committed
186
int smp_cpus = 1;
187
const char *vnc_display;
bellard's avatar
bellard committed
188
#if defined(TARGET_SPARC)
189
#define MAX_CPUS 16
bellard's avatar
bellard committed
190 191
#elif defined(TARGET_I386)
#define MAX_CPUS 255
192
#else
bellard's avatar
bellard committed
193
#define MAX_CPUS 1
194
#endif
bellard's avatar
bellard committed
195
int acpi_enabled = 1;
196
int fd_bootchk = 1;
bellard's avatar
bellard committed
197
int no_reboot = 0;
198
int cursor_hide = 1;
199
int graphic_rotate = 0;
ths's avatar
ths committed
200
int daemonize = 0;
201 202
const char *option_rom[MAX_OPTION_ROMS];
int nb_option_roms;
203
int semihosting_enabled = 0;
204
int autostart = 1;
205 206 207
#ifdef TARGET_ARM
int old_param = 0;
#endif
ths's avatar
ths committed
208
const char *qemu_name;
ths's avatar
ths committed
209
int alt_grab = 0;
blueswir1's avatar
blueswir1 committed
210 211 212 213
#ifdef TARGET_SPARC
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
#endif
214

215 216
#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)

217
/***********************************************************/
218 219 220
/* x86 ISA bus support */

target_phys_addr_t isa_mem_base = 0;
bellard's avatar
bellard committed
221
PicState2 *isa_pic;
222

223
uint32_t default_ioport_readb(void *opaque, uint32_t address)
224 225
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
226
    fprintf(stderr, "unused inb: port=0x%04x\n", address);
227
#endif
bellard's avatar
bellard committed
228
    return 0xff;
229 230
}

231
void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
232 233
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
234
    fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
235 236 237 238
#endif
}

/* default is to make two byte accesses */
239
uint32_t default_ioport_readw(void *opaque, uint32_t address)
240 241
{
    uint32_t data;
bellard's avatar
bellard committed
242 243 244
    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;
245 246 247
    return data;
}

248
void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
249
{
bellard's avatar
bellard committed
250 251 252
    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);
253 254
}

255
uint32_t default_ioport_readl(void *opaque, uint32_t address)
256
{
bellard's avatar
bellard committed
257
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
258
    fprintf(stderr, "unused inl: port=0x%04x\n", address);
bellard's avatar
bellard committed
259 260
#endif
    return 0xffffffff;
261 262
}

263
void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
264
{
bellard's avatar
bellard committed
265
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
266
    fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
bellard's avatar
bellard committed
267
#endif
268 269
}

bellard's avatar
bellard committed
270
void init_ioports(void)
271 272 273
{
    int i;

bellard's avatar
bellard committed
274 275 276 277 278 279 280 281
    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;
    }
282 283
}

bellard's avatar
bellard committed
284
/* size is the word size in byte */
285 286
int register_ioport_read(int start, int length, int size, 
                         IOPortReadFunc *func, void *opaque)
bellard's avatar
bellard committed
287
{
bellard's avatar
bellard committed
288
    int i, bsize;
bellard's avatar
bellard committed
289

290
    if (size == 1) {
bellard's avatar
bellard committed
291
        bsize = 0;
292
    } else if (size == 2) {
bellard's avatar
bellard committed
293
        bsize = 1;
294
    } else if (size == 4) {
bellard's avatar
bellard committed
295
        bsize = 2;
296 297
    } else {
        hw_error("register_ioport_read: invalid size");
bellard's avatar
bellard committed
298
        return -1;
299 300
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
301
        ioport_read_table[bsize][i] = func;
302 303 304 305
        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
306 307 308
    return 0;
}

bellard's avatar
bellard committed
309
/* size is the word size in byte */
310 311
int register_ioport_write(int start, int length, int size, 
                          IOPortWriteFunc *func, void *opaque)
bellard's avatar
bellard committed
312
{
bellard's avatar
bellard committed
313
    int i, bsize;
bellard's avatar
bellard committed
314

315
    if (size == 1) {
bellard's avatar
bellard committed
316
        bsize = 0;
317
    } else if (size == 2) {
bellard's avatar
bellard committed
318
        bsize = 1;
319
    } else if (size == 4) {
bellard's avatar
bellard committed
320
        bsize = 2;
321 322
    } else {
        hw_error("register_ioport_write: invalid size");
bellard's avatar
bellard committed
323
        return -1;
324 325
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
326
        ioport_write_table[bsize][i] = func;
327
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
328
            hw_error("register_ioport_write: invalid opaque");
329 330
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
331 332 333
    return 0;
}

bellard's avatar
bellard committed
334 335 336 337 338 339 340 341 342 343 344 345 346 347 348
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
349 350
/***********************************************************/

351
void cpu_outb(CPUState *env, int addr, int val)
352
{
353 354 355 356
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outb: %04x %02x\n", addr, val);
#endif    
357
    ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
358 359 360 361
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
362 363
}

364
void cpu_outw(CPUState *env, int addr, int val)
365
{
366 367 368 369
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outw: %04x %04x\n", addr, val);
#endif    
370
    ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
371 372 373 374
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
375 376
}

377
void cpu_outl(CPUState *env, int addr, int val)
378
{
379 380 381 382
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outl: %04x %08x\n", addr, val);
#endif
383
    ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
384 385 386 387
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
388 389
}

390
int cpu_inb(CPUState *env, int addr)
391
{
392 393 394 395 396
    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);
397 398 399 400
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
401 402
#endif
    return val;
403 404
}

405
int cpu_inw(CPUState *env, int addr)
406
{
407 408 409 410 411
    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);
412 413 414 415
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
416 417
#endif
    return val;
418 419
}

420
int cpu_inl(CPUState *env, int addr)
421
{
422 423 424 425 426
    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);
427 428 429 430
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
431 432
#endif
    return val;
433 434 435 436 437 438
}

/***********************************************************/
void hw_error(const char *fmt, ...)
{
    va_list ap;
bellard's avatar
bellard committed
439
    CPUState *env;
440 441 442 443 444

    va_start(ap, fmt);
    fprintf(stderr, "qemu: hardware error: ");
    vfprintf(stderr, fmt, ap);
    fprintf(stderr, "\n");
bellard's avatar
bellard committed
445 446
    for(env = first_cpu; env != NULL; env = env->next_cpu) {
        fprintf(stderr, "CPU #%d:\n", env->cpu_index);
447
#ifdef TARGET_I386
bellard's avatar
bellard committed
448
        cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
449
#else
bellard's avatar
bellard committed
450
        cpu_dump_state(env, stderr, fprintf, 0);
451
#endif
bellard's avatar
bellard committed
452
    }
453 454 455 456
    va_end(ap);
    abort();
}

bellard's avatar
bellard committed
457 458 459 460 461
/***********************************************************/
/* keyboard/mouse */

static QEMUPutKBDEvent *qemu_put_kbd_event;
static void *qemu_put_kbd_event_opaque;
462 463
static QEMUPutMouseEntry *qemu_put_mouse_event_head;
static QEMUPutMouseEntry *qemu_put_mouse_event_current;
bellard's avatar
bellard committed
464 465 466 467 468 469 470

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

471 472 473
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                void *opaque, int absolute,
                                                const char *name)
bellard's avatar
bellard committed
474
{
475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532
    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
533 534 535 536 537 538 539 540 541 542 543
}

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)
{
544 545
    QEMUPutMouseEvent *mouse_event;
    void *mouse_event_opaque;
546
    int width;
547 548 549 550 551 552 553 554 555 556 557

    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) {
558 559 560 561 562 563 564 565 566 567
        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
568 569 570
    }
}

571 572
int kbd_mouse_is_absolute(void)
{
573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619
    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");
620 621
}

622 623
/* compute with 96 bit intermediate result: (a*b)/c */
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
624
{
625 626 627 628 629 630 631 632 633 634 635
    union {
        uint64_t ll;
        struct {
#ifdef WORDS_BIGENDIAN
            uint32_t high, low;
#else
            uint32_t low, high;
#endif            
        } l;
    } u, res;
    uint64_t rl, rh;
636

637 638 639 640 641 642 643
    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;
644 645
}

646 647
/***********************************************************/
/* real time host monotonic timer */
648

649
#define QEMU_TIMER_BASE 1000000000LL
650

651
#ifdef WIN32
652

653
static int64_t clock_freq;
bellard's avatar
bellard committed
654

655
static void init_get_clock(void)
bellard's avatar
bellard committed
656
{
657 658
    LARGE_INTEGER freq;
    int ret;
659 660 661 662 663 664
    ret = QueryPerformanceFrequency(&freq);
    if (ret == 0) {
        fprintf(stderr, "Could not calibrate ticks\n");
        exit(1);
    }
    clock_freq = freq.QuadPart;
bellard's avatar
bellard committed
665 666
}

667
static int64_t get_clock(void)
bellard's avatar
bellard committed
668
{
669 670 671
    LARGE_INTEGER ti;
    QueryPerformanceCounter(&ti);
    return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
bellard's avatar
bellard committed
672 673
}

674
#else
bellard's avatar
bellard committed
675

676 677 678
static int use_rt_clock;

static void init_get_clock(void)
bellard's avatar
bellard committed
679
{
680 681 682 683 684 685 686 687 688
    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
689 690
}

691
static int64_t get_clock(void)
bellard's avatar
bellard committed
692
{
693 694 695 696 697 698
#if defined(__linux__)
    if (use_rt_clock) {
        struct timespec ts;
        clock_gettime(CLOCK_MONOTONIC, &ts);
        return ts.tv_sec * 1000000000LL + ts.tv_nsec;
    } else 
bellard's avatar
bellard committed
699
#endif
700 701 702 703 704 705 706
    {
        /* 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
707 708
}

709 710
#endif

711 712 713
/***********************************************************/
/* guest cycle counter */

714
static int64_t cpu_ticks_prev;
715
static int64_t cpu_ticks_offset;
716
static int64_t cpu_clock_offset;
717
static int cpu_ticks_enabled;
718

719 720
/* return the host CPU cycle counter and handle stop/restart */
int64_t cpu_get_ticks(void)
721
{
722 723 724
    if (!cpu_ticks_enabled) {
        return cpu_ticks_offset;
    } else {
725 726 727 728 729 730 731 732 733
        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;
734
    }
735 736
}

737 738 739 740 741 742 743 744 745 746 747 748
/* 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;
    }
}

749 750 751
/* enable cpu_get_ticks() */
void cpu_enable_ticks(void)
{
752 753
    if (!cpu_ticks_enabled) {
        cpu_ticks_offset -= cpu_get_real_ticks();
754
        cpu_clock_offset -= get_clock();
755 756
        cpu_ticks_enabled = 1;
    }
757 758 759 760 761 762
}

/* disable cpu_get_ticks() : the clock is stopped. You must not call
   cpu_get_ticks() after that.  */
void cpu_disable_ticks(void)
{
763 764
    if (cpu_ticks_enabled) {
        cpu_ticks_offset = cpu_get_ticks();
765
        cpu_clock_offset = cpu_get_clock();
766 767
        cpu_ticks_enabled = 0;
    }
768 769
}

770 771 772
/***********************************************************/
/* timers */
 
773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788
#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;
};

789 790
struct qemu_alarm_timer {
    char const *name;
791
    unsigned int flags;
792 793 794

    int (*start)(struct qemu_alarm_timer *t);
    void (*stop)(struct qemu_alarm_timer *t);
795
    void (*rearm)(struct qemu_alarm_timer *t);
796 797 798
    void *priv;
};

799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816
#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

817
static struct qemu_alarm_timer *alarm_timer;
818

bellard's avatar
bellard committed
819
#ifdef _WIN32
820 821 822 823 824 825 826 827 828

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);
829
static void win32_rearm_timer(struct qemu_alarm_timer *t);
830

bellard's avatar
bellard committed
831
#else
832 833 834 835

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

836 837
#ifdef __linux__

838 839 840 841
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
842 843 844
static int hpet_start_timer(struct qemu_alarm_timer *t);
static void hpet_stop_timer(struct qemu_alarm_timer *t);

845 846 847
static int rtc_start_timer(struct qemu_alarm_timer *t);
static void rtc_stop_timer(struct qemu_alarm_timer *t);

848
#endif /* __linux__ */
849

850 851 852
#endif /* _WIN32 */

static struct qemu_alarm_timer alarm_timers[] = {
853
#ifndef _WIN32
854
#ifdef __linux__
855 856
    {"dynticks", ALARM_FLAG_DYNTICKS, dynticks_start_timer,
     dynticks_stop_timer, dynticks_rearm_timer, NULL},
ths's avatar
ths committed
857
    /* HPET - if available - is preferred */
858
    {"hpet", 0, hpet_start_timer, hpet_stop_timer, NULL, NULL},
ths's avatar
ths committed
859
    /* ...otherwise try RTC */
860
    {"rtc", 0, rtc_start_timer, rtc_stop_timer, NULL, NULL},
861
#endif
862
    {"unix", 0, unix_start_timer, unix_stop_timer, NULL, NULL},
863
#else
864 865 866 867
    {"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},
868 869 870 871
#endif
    {NULL, }
};

872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936
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;

        for (i = 0; i < count; i++) {
            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();
}

937 938 939 940 941
QEMUClock *rt_clock;
QEMUClock *vm_clock;

static QEMUTimer *active_timers[2];

942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985
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;
    }
986 987

    qemu_rearm_alarm_timer(alarm_timer);
988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 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
}

/* 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;
        if (t->expire_time > expire_time) 
            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;
    
    for(;;) {
        ts = *ptimer_head;
1038
        if (!ts || ts->expire_time > current_time)
1039 1040 1041 1042 1043 1044 1045 1046
            break;
        /* remove timer from the list before calling the callback */
        *ptimer_head = ts->next;
        ts->next = NULL;
        
        /* run the callback (the timer list can be modified) */
        ts->cb(ts->opaque);
    }
1047
    qemu_rearm_alarm_timer(alarm_timer);
1048 1049 1050 1051 1052 1053
}

int64_t qemu_get_clock(QEMUClock *clock)
{
    switch(clock->type) {
    case QEMU_TIMER_REALTIME:
1054
        return get_clock() / 1000000;
1055 1056
    default:
    case QEMU_TIMER_VIRTUAL: