vl.c 208 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>
bellard's avatar
bellard committed
45 46
#ifdef _BSD
#include <sys/stat.h>
47
#ifndef __APPLE__
bellard's avatar
bellard committed
48
#include <libutil.h>
49
#endif
ths's avatar
ths committed
50 51
#elif defined (__GLIBC__) && defined (__FreeBSD_kernel__)
#include <freebsd/stdlib.h>
bellard's avatar
bellard committed
52
#else
bellard's avatar
bellard committed
53
#ifndef __sun__
bellard's avatar
bellard committed
54 55
#include <linux/if.h>
#include <linux/if_tun.h>
bellard's avatar
bellard committed
56 57
#include <pty.h>
#include <malloc.h>
58
#include <linux/rtc.h>
bellard's avatar
bellard committed
59
#include <linux/ppdev.h>
60
#include <linux/parport.h>
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
#else
#include <sys/stat.h>
#include <sys/ethernet.h>
#include <sys/sockio.h>
#include <arpa/inet.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
76
#endif
bellard's avatar
bellard committed
77
#endif
bellard's avatar
bellard committed
78
#endif
bellard's avatar
bellard committed
79

bellard's avatar
bellard committed
80 81 82 83
#if defined(CONFIG_SLIRP)
#include "libslirp.h"
#endif

bellard's avatar
bellard committed
84
#ifdef _WIN32
bellard's avatar
bellard committed
85
#include <malloc.h>
bellard's avatar
bellard committed
86 87 88 89 90 91
#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
92 93
#include "qemu_socket.h"

bellard's avatar
bellard committed
94
#ifdef CONFIG_SDL
bellard's avatar
bellard committed
95
#ifdef __APPLE__
96
#include <SDL/SDL.h>
bellard's avatar
bellard committed
97
#endif
bellard's avatar
bellard committed
98
#endif /* CONFIG_SDL */
99

100 101 102 103 104
#ifdef CONFIG_COCOA
#undef main
#define main qemu_main
#endif /* CONFIG_COCOA */

105
#include "disas.h"
bellard's avatar
bellard committed
106

107
#include "exec-all.h"
108

109
#define DEFAULT_NETWORK_SCRIPT "/etc/qemu-ifup"
pbrook's avatar
pbrook committed
110 111 112 113 114
#ifdef __sun__
#define SMBD_COMMAND "/usr/sfw/sbin/smbd"
#else
#define SMBD_COMMAND "/usr/sbin/smbd"
#endif
bellard's avatar
bellard committed
115

116
//#define DEBUG_UNUSED_IOPORT
117
//#define DEBUG_IOPORT
118

119
#define PHYS_RAM_MAX_SIZE (2047 * 1024 * 1024)
bellard's avatar
bellard committed
120

bellard's avatar
bellard committed
121 122 123
#ifdef TARGET_PPC
#define DEFAULT_RAM_SIZE 144
#else
124
#define DEFAULT_RAM_SIZE 128
bellard's avatar
bellard committed
125
#endif
126 127
/* in ms */
#define GUI_REFRESH_INTERVAL 30
128

pbrook's avatar
pbrook committed
129 130 131
/* Max number of USB devices that can be specified on the commandline.  */
#define MAX_USB_CMDLINE 8

132 133
/* XXX: use a two level table to limit memory usage */
#define MAX_IOPORTS 65536
134

bellard's avatar
bellard committed
135
const char *bios_dir = CONFIG_QEMU_SHAREDIR;
136
char phys_ram_file[1024];
137
void *ioport_opaque[MAX_IOPORTS];
bellard's avatar
bellard committed
138 139
IOPortReadFunc *ioport_read_table[3][MAX_IOPORTS];
IOPortWriteFunc *ioport_write_table[3][MAX_IOPORTS];
bellard's avatar
bellard committed
140 141 142
/* 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];
143
BlockDriverState *pflash_table[MAX_PFLASH];
144
BlockDriverState *sd_bdrv;
145
BlockDriverState *mtd_bdrv;
bellard's avatar
bellard committed
146 147
/* point to the block driver where the snapshots are managed */
BlockDriverState *bs_snapshots;
148 149
int vga_ram_size;
static DisplayState display_state;
150
int nographic;
151
const char* keyboard_layout = NULL;
152
int64_t ticks_per_sec;
153
int boot_device = 'c';
bellard's avatar
bellard committed
154
int ram_size;
bellard's avatar
bellard committed
155
int pit_min_timer_count = 0;
156
int nb_nics;
bellard's avatar
bellard committed
157
NICInfo nd_table[MAX_NICS];
158
int vm_running;
bellard's avatar
bellard committed
159
int rtc_utc = 1;
160
int cirrus_vga_enabled = 1;
161
int vmsvga_enabled = 0;
162 163 164
#ifdef TARGET_SPARC
int graphic_width = 1024;
int graphic_height = 768;
blueswir1's avatar
blueswir1 committed
165
int graphic_depth = 8;
166
#else
167 168
int graphic_width = 800;
int graphic_height = 600;
169
int graphic_depth = 15;
blueswir1's avatar
blueswir1 committed
170
#endif
bellard's avatar
bellard committed
171
int full_screen = 0;
172
int no_frame = 0;
173
int no_quit = 0;
174
CharDriverState *serial_hds[MAX_SERIAL_PORTS];
175
CharDriverState *parallel_hds[MAX_PARALLEL_PORTS];
176 177 178
#ifdef TARGET_I386
int win2k_install_hack = 0;
#endif
bellard's avatar
bellard committed
179
int usb_enabled = 0;
bellard's avatar
bellard committed
180
static VLANState *first_vlan;
bellard's avatar
bellard committed
181
int smp_cpus = 1;
182
const char *vnc_display;
bellard's avatar
bellard committed
183
#if defined(TARGET_SPARC)
184
#define MAX_CPUS 16
bellard's avatar
bellard committed
185 186
#elif defined(TARGET_I386)
#define MAX_CPUS 255
187
#else
bellard's avatar
bellard committed
188
#define MAX_CPUS 1
189
#endif
bellard's avatar
bellard committed
190
int acpi_enabled = 1;
191
int fd_bootchk = 1;
bellard's avatar
bellard committed
192
int no_reboot = 0;
193
int cursor_hide = 1;
194
int graphic_rotate = 0;
ths's avatar
ths committed
195
int daemonize = 0;
196 197
const char *option_rom[MAX_OPTION_ROMS];
int nb_option_roms;
198
int semihosting_enabled = 0;
199
int autostart = 1;
ths's avatar
ths committed
200
const char *qemu_name;
ths's avatar
ths committed
201
int alt_grab = 0;
blueswir1's avatar
blueswir1 committed
202 203 204 205
#ifdef TARGET_SPARC
unsigned int nb_prom_envs = 0;
const char *prom_envs[MAX_PROM_ENVS];
#endif
206 207

/***********************************************************/
208 209 210
/* x86 ISA bus support */

target_phys_addr_t isa_mem_base = 0;
bellard's avatar
bellard committed
211
PicState2 *isa_pic;
212

213
uint32_t default_ioport_readb(void *opaque, uint32_t address)
214 215
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
216
    fprintf(stderr, "unused inb: port=0x%04x\n", address);
217
#endif
bellard's avatar
bellard committed
218
    return 0xff;
219 220
}

221
void default_ioport_writeb(void *opaque, uint32_t address, uint32_t data)
222 223
{
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
224
    fprintf(stderr, "unused outb: port=0x%04x data=0x%02x\n", address, data);
225 226 227 228
#endif
}

/* default is to make two byte accesses */
229
uint32_t default_ioport_readw(void *opaque, uint32_t address)
230 231
{
    uint32_t data;
bellard's avatar
bellard committed
232 233 234
    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;
235 236 237
    return data;
}

238
void default_ioport_writew(void *opaque, uint32_t address, uint32_t data)
239
{
bellard's avatar
bellard committed
240 241 242
    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);
243 244
}

245
uint32_t default_ioport_readl(void *opaque, uint32_t address)
246
{
bellard's avatar
bellard committed
247
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
248
    fprintf(stderr, "unused inl: port=0x%04x\n", address);
bellard's avatar
bellard committed
249 250
#endif
    return 0xffffffff;
251 252
}

253
void default_ioport_writel(void *opaque, uint32_t address, uint32_t data)
254
{
bellard's avatar
bellard committed
255
#ifdef DEBUG_UNUSED_IOPORT
ths's avatar
ths committed
256
    fprintf(stderr, "unused outl: port=0x%04x data=0x%02x\n", address, data);
bellard's avatar
bellard committed
257
#endif
258 259
}

bellard's avatar
bellard committed
260
void init_ioports(void)
261 262 263
{
    int i;

bellard's avatar
bellard committed
264 265 266 267 268 269 270 271
    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;
    }
272 273
}

bellard's avatar
bellard committed
274
/* size is the word size in byte */
275 276
int register_ioport_read(int start, int length, int size, 
                         IOPortReadFunc *func, void *opaque)
bellard's avatar
bellard committed
277
{
bellard's avatar
bellard committed
278
    int i, bsize;
bellard's avatar
bellard committed
279

280
    if (size == 1) {
bellard's avatar
bellard committed
281
        bsize = 0;
282
    } else if (size == 2) {
bellard's avatar
bellard committed
283
        bsize = 1;
284
    } else if (size == 4) {
bellard's avatar
bellard committed
285
        bsize = 2;
286 287
    } else {
        hw_error("register_ioport_read: invalid size");
bellard's avatar
bellard committed
288
        return -1;
289 290
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
291
        ioport_read_table[bsize][i] = func;
292 293 294 295
        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
296 297 298
    return 0;
}

bellard's avatar
bellard committed
299
/* size is the word size in byte */
300 301
int register_ioport_write(int start, int length, int size, 
                          IOPortWriteFunc *func, void *opaque)
bellard's avatar
bellard committed
302
{
bellard's avatar
bellard committed
303
    int i, bsize;
bellard's avatar
bellard committed
304

305
    if (size == 1) {
bellard's avatar
bellard committed
306
        bsize = 0;
307
    } else if (size == 2) {
bellard's avatar
bellard committed
308
        bsize = 1;
309
    } else if (size == 4) {
bellard's avatar
bellard committed
310
        bsize = 2;
311 312
    } else {
        hw_error("register_ioport_write: invalid size");
bellard's avatar
bellard committed
313
        return -1;
314 315
    }
    for(i = start; i < start + length; i += size) {
bellard's avatar
bellard committed
316
        ioport_write_table[bsize][i] = func;
317
        if (ioport_opaque[i] != NULL && ioport_opaque[i] != opaque)
318
            hw_error("register_ioport_write: invalid opaque");
319 320
        ioport_opaque[i] = opaque;
    }
bellard's avatar
bellard committed
321 322 323
    return 0;
}

bellard's avatar
bellard committed
324 325 326 327 328 329 330 331 332 333 334 335 336 337 338
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
339 340
/***********************************************************/

341
void cpu_outb(CPUState *env, int addr, int val)
342
{
343 344 345 346
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outb: %04x %02x\n", addr, val);
#endif    
347
    ioport_write_table[0][addr](ioport_opaque[addr], addr, val);
348 349 350 351
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
352 353
}

354
void cpu_outw(CPUState *env, int addr, int val)
355
{
356 357 358 359
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outw: %04x %04x\n", addr, val);
#endif    
360
    ioport_write_table[1][addr](ioport_opaque[addr], addr, val);
361 362 363 364
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
365 366
}

367
void cpu_outl(CPUState *env, int addr, int val)
368
{
369 370 371 372
#ifdef DEBUG_IOPORT
    if (loglevel & CPU_LOG_IOPORT)
        fprintf(logfile, "outl: %04x %08x\n", addr, val);
#endif
373
    ioport_write_table[2][addr](ioport_opaque[addr], addr, val);
374 375 376 377
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
#endif
378 379
}

380
int cpu_inb(CPUState *env, int addr)
381
{
382 383 384 385 386
    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);
387 388 389 390
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
391 392
#endif
    return val;
393 394
}

395
int cpu_inw(CPUState *env, int addr)
396
{
397 398 399 400 401
    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);
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_inl(CPUState *env, int addr)
411
{
412 413 414 415 416
    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);
417 418 419 420
#endif
#ifdef USE_KQEMU
    if (env)
        env->last_io_time = cpu_get_time_fast();
421 422
#endif
    return val;
423 424 425 426 427 428
}

/***********************************************************/
void hw_error(const char *fmt, ...)
{
    va_list ap;
bellard's avatar
bellard committed
429
    CPUState *env;
430 431 432 433 434

    va_start(ap, fmt);
    fprintf(stderr, "qemu: hardware error: ");
    vfprintf(stderr, fmt, ap);
    fprintf(stderr, "\n");
bellard's avatar
bellard committed
435 436
    for(env = first_cpu; env != NULL; env = env->next_cpu) {
        fprintf(stderr, "CPU #%d:\n", env->cpu_index);
437
#ifdef TARGET_I386
bellard's avatar
bellard committed
438
        cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU);
439
#else
bellard's avatar
bellard committed
440
        cpu_dump_state(env, stderr, fprintf, 0);
441
#endif
bellard's avatar
bellard committed
442
    }
443 444 445 446
    va_end(ap);
    abort();
}

bellard's avatar
bellard committed
447 448 449 450 451
/***********************************************************/
/* keyboard/mouse */

static QEMUPutKBDEvent *qemu_put_kbd_event;
static void *qemu_put_kbd_event_opaque;
452 453
static QEMUPutMouseEntry *qemu_put_mouse_event_head;
static QEMUPutMouseEntry *qemu_put_mouse_event_current;
bellard's avatar
bellard committed
454 455 456 457 458 459 460

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

461 462 463
QEMUPutMouseEntry *qemu_add_mouse_event_handler(QEMUPutMouseEvent *func,
                                                void *opaque, int absolute,
                                                const char *name)
bellard's avatar
bellard committed
464
{
465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522
    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
523 524 525 526 527 528 529 530 531 532 533
}

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)
{
534 535
    QEMUPutMouseEvent *mouse_event;
    void *mouse_event_opaque;
536
    int width;
537 538 539 540 541 542 543 544 545 546 547

    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) {
548 549 550 551 552 553 554 555 556 557
        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
558 559 560
    }
}

561 562
int kbd_mouse_is_absolute(void)
{
563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609
    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");
610 611
}

612 613
/* compute with 96 bit intermediate result: (a*b)/c */
uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
614
{
615 616 617 618 619 620 621 622 623 624 625
    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;
626

627 628 629 630 631 632 633
    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;
634 635
}

636 637
/***********************************************************/
/* real time host monotonic timer */
638

639
#define QEMU_TIMER_BASE 1000000000LL
640

641
#ifdef WIN32
642

643
static int64_t clock_freq;
bellard's avatar
bellard committed
644

645
static void init_get_clock(void)
bellard's avatar
bellard committed
646
{
647 648
    LARGE_INTEGER freq;
    int ret;
649 650 651 652 653 654
    ret = QueryPerformanceFrequency(&freq);
    if (ret == 0) {
        fprintf(stderr, "Could not calibrate ticks\n");
        exit(1);
    }
    clock_freq = freq.QuadPart;
bellard's avatar
bellard committed
655 656
}

657
static int64_t get_clock(void)
bellard's avatar
bellard committed
658
{
659 660 661
    LARGE_INTEGER ti;
    QueryPerformanceCounter(&ti);
    return muldiv64(ti.QuadPart, QEMU_TIMER_BASE, clock_freq);
bellard's avatar
bellard committed
662 663
}

664
#else
bellard's avatar
bellard committed
665

666 667 668
static int use_rt_clock;

static void init_get_clock(void)
bellard's avatar
bellard committed
669
{
670 671 672 673 674 675 676 677 678
    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
679 680
}

681
static int64_t get_clock(void)
bellard's avatar
bellard committed
682
{
683 684 685 686 687 688
#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
689
#endif
690 691 692 693 694 695 696
    {
        /* 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
697 698
}

699 700
#endif

701 702 703
/***********************************************************/
/* guest cycle counter */

704
static int64_t cpu_ticks_prev;
705
static int64_t cpu_ticks_offset;
706
static int64_t cpu_clock_offset;
707
static int cpu_ticks_enabled;
708

709 710
/* return the host CPU cycle counter and handle stop/restart */
int64_t cpu_get_ticks(void)
711
{
712 713 714
    if (!cpu_ticks_enabled) {
        return cpu_ticks_offset;
    } else {
715 716 717 718 719 720 721 722 723
        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;
724
    }
725 726
}

727 728 729 730 731 732 733 734 735 736 737 738
/* 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;
    }
}

739 740 741
/* enable cpu_get_ticks() */
void cpu_enable_ticks(void)
{
742 743
    if (!cpu_ticks_enabled) {
        cpu_ticks_offset -= cpu_get_real_ticks();
744
        cpu_clock_offset -= get_clock();
745 746
        cpu_ticks_enabled = 1;
    }
747 748 749 750 751 752
}

/* disable cpu_get_ticks() : the clock is stopped. You must not call
   cpu_get_ticks() after that.  */
void cpu_disable_ticks(void)
{
753 754
    if (cpu_ticks_enabled) {
        cpu_ticks_offset = cpu_get_ticks();
755
        cpu_clock_offset = cpu_get_clock();
756 757
        cpu_ticks_enabled = 0;
    }
758 759
}

760 761 762
/***********************************************************/
/* timers */
 
763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782
#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;
};

QEMUClock *rt_clock;
QEMUClock *vm_clock;

static QEMUTimer *active_timers[2];
bellard's avatar
bellard committed
783 784
#ifdef _WIN32
static MMRESULT timerID;
785 786
static HANDLE host_alarm = NULL;
static unsigned int period = 1;
bellard's avatar
bellard committed
787
#else
788 789
/* frequency of the times() clock tick */
static int timer_freq;
bellard's avatar
bellard committed
790
#endif
791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885

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;
        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;
886
        if (!ts || ts->expire_time > current_time)
887 888 889 890 891 892 893 894 895 896 897 898 899 900
            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);
    }
}

int64_t qemu_get_clock(QEMUClock *clock)
{
    switch(clock->type) {
    case QEMU_TIMER_REALTIME:
901
        return get_clock() / 1000000;
902 903
    default:
    case QEMU_TIMER_VIRTUAL:
904
        return cpu_get_clock();
905 906 907
    }
}

908 909 910 911 912 913 914 915
static void init_timers(void)
{
    init_get_clock();
    ticks_per_sec = QEMU_TIMER_BASE;
    rt_clock = qemu_new_clock(QEMU_TIMER_REALTIME);
    vm_clock = qemu_new_clock(QEMU_TIMER_VIRTUAL);
}

916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947
/* save a timer */
void qemu_put_timer(QEMUFile *f, QEMUTimer *ts)
{
    uint64_t expire_time;

    if (qemu_timer_pending(ts)) {
        expire_time = ts->expire_time;
    } else {
        expire_time = -1;
    }
    qemu_put_be64(f, expire_time);
}

void qemu_get_timer(QEMUFile *f, QEMUTimer *ts)
{
    uint64_t expire_time;

    expire_time = qemu_get_be64(f);
    if (expire_time != -1) {
        qemu_mod_timer(ts, expire_time);
    } else {
        qemu_del_timer(ts);
    }
}

static void timer_save(QEMUFile *f, void *opaque)
{
    if (cpu_ticks_enabled) {
        hw_error("cannot save state if virtual timers are running");
    }
    qemu_put_be64s(f, &cpu_ticks_offset);
    qemu_put_be64s(f, &ticks_per_sec);
948
    qemu_put_be64s(f, &cpu_clock_offset);
949 950 951 952
}

static int timer_load(QEMUFile *f, void *opaque, int version_id)
{
953
    if (version_id != 1 && version_id != 2)
954 955 956 957 958 959
        return -EINVAL;
    if (cpu_ticks_enabled) {
        return -EINVAL;
    }
    qemu_get_be64s(f, &cpu_ticks_offset);
    qemu_get_be64s(f, &ticks_per_sec);
960 961 962
    if (version_id == 2) {
        qemu_get_be64s(f, &cpu_clock_offset);
    }
963 964 965
    return 0;
}

bellard's avatar
bellard committed
966 967 968 969
#ifdef _WIN32
void CALLBACK host_alarm_handler(UINT uTimerID, UINT uMsg, 
                                 DWORD_PTR dwUser, DWORD_PTR dw1, DWORD_PTR dw2)
#else
970
static void host_alarm_handler(int host_signum)
bellard's avatar
bellard committed
971
#endif
972
{
973 974 975 976 977 978 979 980 981 982 983 984 985 986 987
#if 0
#define DISP_FREQ 1000
    {
        static int64_t delta_min = INT64_MAX;
        static int64_t delta_max, delta_cum, last_clock, delta, ti;
        static int count;
        ti = qemu_get_clock(vm_clock);
        if (last_clock != 0) {
            delta = ti - last_clock;
            if (delta < delta_min)
                delta_min = delta;
            if (delta > delta_max)
                delta_max = delta;
            delta_cum += delta;
            if (++count == DISP_FREQ) {
bellard's avatar
bellard committed
988
                printf("timer: min=%" PRId64 " us max=%" PRId64 " us avg=%" PRId64 " us avg_freq=%0.3f Hz\n",
989 990 991 992 993 994 995 996 997 998 999 1000 1001
                       muldiv64(delta_min, 1000000, ticks_per_sec),
                       muldiv64(delta_max, 1000000, ticks_per_sec),
                       muldiv64(delta_cum, 1000000 / DISP_FREQ, ticks_per_sec),
                       (double)ticks_per_sec / ((double)delta_cum / DISP_FREQ));
                count = 0;
                delta_min = INT64_MAX;
                delta_max = 0;
                delta_cum = 0;
            }
        }
        last_clock = ti;
    }
#endif
1002 1003 1004 1005
    if (qemu_timer_expired(active_timers[QEMU_TIMER_VIRTUAL],
                           qemu_get_clock(vm_clock)) ||
        qemu_timer_expired(active_timers[QEMU_TIMER_REALTIME],
                           qemu_get_clock(rt_clock))) {
1006 1007 1008
#ifdef _WIN32
        SetEvent(host_alarm);
#endif
bellard's avatar
bellard committed
1009 1010 1011 1012
        CPUState *env = cpu_single_env;
        if (env) {
            /* stop the currently executing cpu because a timer occured */
            cpu_interrupt(env, CPU_INTERRUPT_EXIT);
1013
#ifdef USE_KQEMU
bellard's avatar
bellard committed
1014 1015 1016
            if (env->kqemu_enabled) {
                kqemu_cpu_interrupt(env);
            }
1017
#endif
bellard's avatar
bellard committed
1018
        }