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1
/*
2
 * QEMU System Emulator
3
 *
4
 * Copyright (c) 2003-2008 Fabrice Bellard
5
 *
6
 * Permission is hereby granted, free of charge, to any person obtaining a copy
7
 * of this software and associated documentation files (the "Software"), to deal
8
 * in the Software without restriction, including without limitation the rights
9
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10
 * copies of the Software, and to permit persons to whom the Software is
11
 * furnished to do so, subject to the following conditions:
12
 *
13
 * The above copyright notice and this permission notice shall be included in
14
 * all copies or substantial portions of the Software.
15
 *
16
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22
 * THE SOFTWARE.
23
 */
24
#include <stdint.h>
25
#include <stdarg.h>
26
#include <stdlib.h>
27
#ifndef _WIN32
28
#include <sys/types.h>
29
#include <sys/mman.h>
30
#endif
31
#include "config.h"
32
#include "monitor.h"
33
#include "sysemu.h"
34
#include "arch_init.h"
35
#include "audio/audio.h"
36
#include "hw/pc.h"
37
#include "hw/pci.h"
38
#include "hw/audiodev.h"
39
#include "kvm.h"
40
#include "migration.h"
41
#include "net.h"
42
#include "gdbstub.h"
43
#include "hw/smbios.h"
44

    
45
#ifdef TARGET_SPARC
46
int graphic_width = 1024;
47
int graphic_height = 768;
48
int graphic_depth = 8;
49
#else
50
int graphic_width = 800;
51
int graphic_height = 600;
52
int graphic_depth = 15;
53
#endif
54

    
55
const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
56

    
57
#if defined(TARGET_ALPHA)
58
#define QEMU_ARCH QEMU_ARCH_ALPHA
59
#elif defined(TARGET_ARM)
60
#define QEMU_ARCH QEMU_ARCH_ARM
61
#elif defined(TARGET_CRIS)
62
#define QEMU_ARCH QEMU_ARCH_CRIS
63
#elif defined(TARGET_I386)
64
#define QEMU_ARCH QEMU_ARCH_I386
65
#elif defined(TARGET_M68K)
66
#define QEMU_ARCH QEMU_ARCH_M68K
67
#elif defined(TARGET_MICROBLAZE)
68
#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
69
#elif defined(TARGET_MIPS)
70
#define QEMU_ARCH QEMU_ARCH_MIPS
71
#elif defined(TARGET_PPC)
72
#define QEMU_ARCH QEMU_ARCH_PPC
73
#elif defined(TARGET_S390X)
74
#define QEMU_ARCH QEMU_ARCH_S390X
75
#elif defined(TARGET_SH4)
76
#define QEMU_ARCH QEMU_ARCH_SH4
77
#elif defined(TARGET_SPARC)
78
#define QEMU_ARCH QEMU_ARCH_SPARC
79
#endif
80

    
81
const uint32_t arch_type = QEMU_ARCH;
82

    
83
/***********************************************************/
84
/* ram save/restore */
85

    
86
#define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
87
#define RAM_SAVE_FLAG_COMPRESS 0x02
88
#define RAM_SAVE_FLAG_MEM_SIZE 0x04
89
#define RAM_SAVE_FLAG_PAGE     0x08
90
#define RAM_SAVE_FLAG_EOS      0x10
91
#define RAM_SAVE_FLAG_CONTINUE 0x20
92

    
93
static int is_dup_page(uint8_t *page, uint8_t ch)
94
{
95
    uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
96
    uint32_t *array = (uint32_t *)page;
97
    int i;
98

    
99
    for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
100
        if (array[i] != val) {
101
            return 0;
102
        }
103
    }
104

    
105
    return 1;
106
}
107

    
108
static RAMBlock *last_block;
109
static ram_addr_t last_offset;
110

    
111
static int ram_save_block(QEMUFile *f)
112
{
113
    RAMBlock *block = last_block;
114
    ram_addr_t offset = last_offset;
115
    ram_addr_t current_addr;
116
    int bytes_sent = 0;
117

    
118
    if (!block)
119
        block = QLIST_FIRST(&ram_list.blocks);
120

    
121
    current_addr = block->offset + offset;
122

    
123
    do {
124
        if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
125
            uint8_t *p;
126
            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
127

    
128
            cpu_physical_memory_reset_dirty(current_addr,
129
                                            current_addr + TARGET_PAGE_SIZE,
130
                                            MIGRATION_DIRTY_FLAG);
131

    
132
            p = block->host + offset;
133

    
134
            if (is_dup_page(p, *p)) {
135
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
136
                if (!cont) {
137
                    qemu_put_byte(f, strlen(block->idstr));
138
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
139
                                    strlen(block->idstr));
140
                }
141
                qemu_put_byte(f, *p);
142
                bytes_sent = 1;
143
            } else {
144
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
145
                if (!cont) {
146
                    qemu_put_byte(f, strlen(block->idstr));
147
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
148
                                    strlen(block->idstr));
149
                }
150
                qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
151
                bytes_sent = TARGET_PAGE_SIZE;
152
            }
153

    
154
            break;
155
        }
156

    
157
        offset += TARGET_PAGE_SIZE;
158
        if (offset >= block->length) {
159
            offset = 0;
160
            block = QLIST_NEXT(block, next);
161
            if (!block)
162
                block = QLIST_FIRST(&ram_list.blocks);
163
        }
164

    
165
        current_addr = block->offset + offset;
166

    
167
    } while (current_addr != last_block->offset + last_offset);
168

    
169
    last_block = block;
170
    last_offset = offset;
171

    
172
    return bytes_sent;
173
}
174

    
175
static uint64_t bytes_transferred;
176

    
177
static ram_addr_t ram_save_remaining(void)
178
{
179
    RAMBlock *block;
180
    ram_addr_t count = 0;
181

    
182
    QLIST_FOREACH(block, &ram_list.blocks, next) {
183
        ram_addr_t addr;
184
        for (addr = block->offset; addr < block->offset + block->length;
185
             addr += TARGET_PAGE_SIZE) {
186
            if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
187
                count++;
188
            }
189
        }
190
    }
191

    
192
    return count;
193
}
194

    
195
uint64_t ram_bytes_remaining(void)
196
{
197
    return ram_save_remaining() * TARGET_PAGE_SIZE;
198
}
199

    
200
uint64_t ram_bytes_transferred(void)
201
{
202
    return bytes_transferred;
203
}
204

    
205
uint64_t ram_bytes_total(void)
206
{
207
    RAMBlock *block;
208
    uint64_t total = 0;
209

    
210
    QLIST_FOREACH(block, &ram_list.blocks, next)
211
        total += block->length;
212

    
213
    return total;
214
}
215

    
216
static int block_compar(const void *a, const void *b)
217
{
218
    RAMBlock * const *ablock = a;
219
    RAMBlock * const *bblock = b;
220
    if ((*ablock)->offset < (*bblock)->offset) {
221
        return -1;
222
    } else if ((*ablock)->offset > (*bblock)->offset) {
223
        return 1;
224
    }
225
    return 0;
226
}
227

    
228
static void sort_ram_list(void)
229
{
230
    RAMBlock *block, *nblock, **blocks;
231
    int n;
232
    n = 0;
233
    QLIST_FOREACH(block, &ram_list.blocks, next) {
234
        ++n;
235
    }
236
    blocks = qemu_malloc(n * sizeof *blocks);
237
    n = 0;
238
    QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
239
        blocks[n++] = block;
240
        QLIST_REMOVE(block, next);
241
    }
242
    qsort(blocks, n, sizeof *blocks, block_compar);
243
    while (--n >= 0) {
244
        QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
245
    }
246
    qemu_free(blocks);
247
}
248

    
249
int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
250
{
251
    ram_addr_t addr;
252
    uint64_t bytes_transferred_last;
253
    double bwidth = 0;
254
    uint64_t expected_time = 0;
255

    
256
    if (stage < 0) {
257
        cpu_physical_memory_set_dirty_tracking(0);
258
        return 0;
259
    }
260

    
261
    if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
262
        qemu_file_set_error(f);
263
        return 0;
264
    }
265

    
266
    if (stage == 1) {
267
        RAMBlock *block;
268
        bytes_transferred = 0;
269
        last_block = NULL;
270
        last_offset = 0;
271
        sort_ram_list();
272

    
273
        /* Make sure all dirty bits are set */
274
        QLIST_FOREACH(block, &ram_list.blocks, next) {
275
            for (addr = block->offset; addr < block->offset + block->length;
276
                 addr += TARGET_PAGE_SIZE) {
277
                if (!cpu_physical_memory_get_dirty(addr,
278
                                                   MIGRATION_DIRTY_FLAG)) {
279
                    cpu_physical_memory_set_dirty(addr);
280
                }
281
            }
282
        }
283

    
284
        /* Enable dirty memory tracking */
285
        cpu_physical_memory_set_dirty_tracking(1);
286

    
287
        qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
288

    
289
        QLIST_FOREACH(block, &ram_list.blocks, next) {
290
            qemu_put_byte(f, strlen(block->idstr));
291
            qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
292
            qemu_put_be64(f, block->length);
293
        }
294
    }
295

    
296
    bytes_transferred_last = bytes_transferred;
297
    bwidth = qemu_get_clock_ns(rt_clock);
298

    
299
    while (!qemu_file_rate_limit(f)) {
300
        int bytes_sent;
301

    
302
        bytes_sent = ram_save_block(f);
303
        bytes_transferred += bytes_sent;
304
        if (bytes_sent == 0) { /* no more blocks */
305
            break;
306
        }
307
    }
308

    
309
    bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
310
    bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
311

    
312
    /* if we haven't transferred anything this round, force expected_time to a
313
     * a very high value, but without crashing */
314
    if (bwidth == 0) {
315
        bwidth = 0.000001;
316
    }
317

    
318
    /* try transferring iterative blocks of memory */
319
    if (stage == 3) {
320
        int bytes_sent;
321

    
322
        /* flush all remaining blocks regardless of rate limiting */
323
        while ((bytes_sent = ram_save_block(f)) != 0) {
324
            bytes_transferred += bytes_sent;
325
        }
326
        cpu_physical_memory_set_dirty_tracking(0);
327
    }
328

    
329
    qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
330

    
331
    expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
332

    
333
    return (stage == 2) && (expected_time <= migrate_max_downtime());
334
}
335

    
336
static inline void *host_from_stream_offset(QEMUFile *f,
337
                                            ram_addr_t offset,
338
                                            int flags)
339
{
340
    static RAMBlock *block = NULL;
341
    char id[256];
342
    uint8_t len;
343

    
344
    if (flags & RAM_SAVE_FLAG_CONTINUE) {
345
        if (!block) {
346
            fprintf(stderr, "Ack, bad migration stream!\n");
347
            return NULL;
348
        }
349

    
350
        return block->host + offset;
351
    }
352

    
353
    len = qemu_get_byte(f);
354
    qemu_get_buffer(f, (uint8_t *)id, len);
355
    id[len] = 0;
356

    
357
    QLIST_FOREACH(block, &ram_list.blocks, next) {
358
        if (!strncmp(id, block->idstr, sizeof(id)))
359
            return block->host + offset;
360
    }
361

    
362
    fprintf(stderr, "Can't find block %s!\n", id);
363
    return NULL;
364
}
365

    
366
int ram_load(QEMUFile *f, void *opaque, int version_id)
367
{
368
    ram_addr_t addr;
369
    int flags;
370

    
371
    if (version_id < 3 || version_id > 4) {
372
        return -EINVAL;
373
    }
374

    
375
    do {
376
        addr = qemu_get_be64(f);
377

    
378
        flags = addr & ~TARGET_PAGE_MASK;
379
        addr &= TARGET_PAGE_MASK;
380

    
381
        if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
382
            if (version_id == 3) {
383
                if (addr != ram_bytes_total()) {
384
                    return -EINVAL;
385
                }
386
            } else {
387
                /* Synchronize RAM block list */
388
                char id[256];
389
                ram_addr_t length;
390
                ram_addr_t total_ram_bytes = addr;
391

    
392
                while (total_ram_bytes) {
393
                    RAMBlock *block;
394
                    uint8_t len;
395

    
396
                    len = qemu_get_byte(f);
397
                    qemu_get_buffer(f, (uint8_t *)id, len);
398
                    id[len] = 0;
399
                    length = qemu_get_be64(f);
400

    
401
                    QLIST_FOREACH(block, &ram_list.blocks, next) {
402
                        if (!strncmp(id, block->idstr, sizeof(id))) {
403
                            if (block->length != length)
404
                                return -EINVAL;
405
                            break;
406
                        }
407
                    }
408

    
409
                    if (!block) {
410
                        fprintf(stderr, "Unknown ramblock \"%s\", cannot "
411
                                "accept migration\n", id);
412
                        return -EINVAL;
413
                    }
414

    
415
                    total_ram_bytes -= length;
416
                }
417
            }
418
        }
419

    
420
        if (flags & RAM_SAVE_FLAG_COMPRESS) {
421
            void *host;
422
            uint8_t ch;
423

    
424
            if (version_id == 3)
425
                host = qemu_get_ram_ptr(addr);
426
            else
427
                host = host_from_stream_offset(f, addr, flags);
428
            if (!host) {
429
                return -EINVAL;
430
            }
431

    
432
            ch = qemu_get_byte(f);
433
            memset(host, ch, TARGET_PAGE_SIZE);
434
#ifndef _WIN32
435
            if (ch == 0 &&
436
                (!kvm_enabled() || kvm_has_sync_mmu())) {
437
                qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
438
            }
439
#endif
440
        } else if (flags & RAM_SAVE_FLAG_PAGE) {
441
            void *host;
442

    
443
            if (version_id == 3)
444
                host = qemu_get_ram_ptr(addr);
445
            else
446
                host = host_from_stream_offset(f, addr, flags);
447

    
448
            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
449
        }
450
        if (qemu_file_has_error(f)) {
451
            return -EIO;
452
        }
453
    } while (!(flags & RAM_SAVE_FLAG_EOS));
454

    
455
    return 0;
456
}
457

    
458
void qemu_service_io(void)
459
{
460
    qemu_notify_event();
461
}
462

    
463
#ifdef HAS_AUDIO
464
struct soundhw soundhw[] = {
465
#ifdef HAS_AUDIO_CHOICE
466
#if defined(TARGET_I386) || defined(TARGET_MIPS)
467
    {
468
        "pcspk",
469
        "PC speaker",
470
        0,
471
        1,
472
        { .init_isa = pcspk_audio_init }
473
    },
474
#endif
475

    
476
#ifdef CONFIG_SB16
477
    {
478
        "sb16",
479
        "Creative Sound Blaster 16",
480
        0,
481
        1,
482
        { .init_isa = SB16_init }
483
    },
484
#endif
485

    
486
#ifdef CONFIG_CS4231A
487
    {
488
        "cs4231a",
489
        "CS4231A",
490
        0,
491
        1,
492
        { .init_isa = cs4231a_init }
493
    },
494
#endif
495

    
496
#ifdef CONFIG_ADLIB
497
    {
498
        "adlib",
499
#ifdef HAS_YMF262
500
        "Yamaha YMF262 (OPL3)",
501
#else
502
        "Yamaha YM3812 (OPL2)",
503
#endif
504
        0,
505
        1,
506
        { .init_isa = Adlib_init }
507
    },
508
#endif
509

    
510
#ifdef CONFIG_GUS
511
    {
512
        "gus",
513
        "Gravis Ultrasound GF1",
514
        0,
515
        1,
516
        { .init_isa = GUS_init }
517
    },
518
#endif
519

    
520
#ifdef CONFIG_AC97
521
    {
522
        "ac97",
523
        "Intel 82801AA AC97 Audio",
524
        0,
525
        0,
526
        { .init_pci = ac97_init }
527
    },
528
#endif
529

    
530
#ifdef CONFIG_ES1370
531
    {
532
        "es1370",
533
        "ENSONIQ AudioPCI ES1370",
534
        0,
535
        0,
536
        { .init_pci = es1370_init }
537
    },
538
#endif
539

    
540
#ifdef CONFIG_HDA
541
    {
542
        "hda",
543
        "Intel HD Audio",
544
        0,
545
        0,
546
        { .init_pci = intel_hda_and_codec_init }
547
    },
548
#endif
549

    
550
#endif /* HAS_AUDIO_CHOICE */
551

    
552
    { NULL, NULL, 0, 0, { NULL } }
553
};
554

    
555
void select_soundhw(const char *optarg)
556
{
557
    struct soundhw *c;
558

    
559
    if (*optarg == '?') {
560
    show_valid_cards:
561

    
562
        printf("Valid sound card names (comma separated):\n");
563
        for (c = soundhw; c->name; ++c) {
564
            printf ("%-11s %s\n", c->name, c->descr);
565
        }
566
        printf("\n-soundhw all will enable all of the above\n");
567
        exit(*optarg != '?');
568
    }
569
    else {
570
        size_t l;
571
        const char *p;
572
        char *e;
573
        int bad_card = 0;
574

    
575
        if (!strcmp(optarg, "all")) {
576
            for (c = soundhw; c->name; ++c) {
577
                c->enabled = 1;
578
            }
579
            return;
580
        }
581

    
582
        p = optarg;
583
        while (*p) {
584
            e = strchr(p, ',');
585
            l = !e ? strlen(p) : (size_t) (e - p);
586

    
587
            for (c = soundhw; c->name; ++c) {
588
                if (!strncmp(c->name, p, l) && !c->name[l]) {
589
                    c->enabled = 1;
590
                    break;
591
                }
592
            }
593

    
594
            if (!c->name) {
595
                if (l > 80) {
596
                    fprintf(stderr,
597
                            "Unknown sound card name (too big to show)\n");
598
                }
599
                else {
600
                    fprintf(stderr, "Unknown sound card name `%.*s'\n",
601
                            (int) l, p);
602
                }
603
                bad_card = 1;
604
            }
605
            p += l + (e != NULL);
606
        }
607

    
608
        if (bad_card) {
609
            goto show_valid_cards;
610
        }
611
    }
612
}
613
#else
614
void select_soundhw(const char *optarg)
615
{
616
}
617
#endif
618

    
619
int qemu_uuid_parse(const char *str, uint8_t *uuid)
620
{
621
    int ret;
622

    
623
    if (strlen(str) != 36) {
624
        return -1;
625
    }
626

    
627
    ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
628
                 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
629
                 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
630
                 &uuid[15]);
631

    
632
    if (ret != 16) {
633
        return -1;
634
    }
635
#ifdef TARGET_I386
636
    smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
637
#endif
638
    return 0;
639
}
640

    
641
void do_acpitable_option(const char *optarg)
642
{
643
#ifdef TARGET_I386
644
    if (acpi_table_add(optarg) < 0) {
645
        fprintf(stderr, "Wrong acpi table provided\n");
646
        exit(1);
647
    }
648
#endif
649
}
650

    
651
void do_smbios_option(const char *optarg)
652
{
653
#ifdef TARGET_I386
654
    if (smbios_entry_add(optarg) < 0) {
655
        fprintf(stderr, "Wrong smbios provided\n");
656
        exit(1);
657
    }
658
#endif
659
}
660

    
661
void cpudef_init(void)
662
{
663
#if defined(cpudef_setup)
664
    cpudef_setup(); /* parse cpu definitions in target config file */
665
#endif
666
}
667

    
668
int audio_available(void)
669
{
670
#ifdef HAS_AUDIO
671
    return 1;
672
#else
673
    return 0;
674
#endif
675
}
676

    
677
int kvm_available(void)
678
{
679
#ifdef CONFIG_KVM
680
    return 1;
681
#else
682
    return 0;
683
#endif
684
}
685

    
686
int xen_available(void)
687
{
688
#ifdef CONFIG_XEN
689
    return 1;
690
#else
691
    return 0;
692
#endif
693
}