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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_LM32)
68
#define QEMU_ARCH QEMU_ARCH_LM32
69
#elif defined(TARGET_MICROBLAZE)
70
#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
71
#elif defined(TARGET_MIPS)
72
#define QEMU_ARCH QEMU_ARCH_MIPS
73
#elif defined(TARGET_PPC)
74
#define QEMU_ARCH QEMU_ARCH_PPC
75
#elif defined(TARGET_S390X)
76
#define QEMU_ARCH QEMU_ARCH_S390X
77
#elif defined(TARGET_SH4)
78
#define QEMU_ARCH QEMU_ARCH_SH4
79
#elif defined(TARGET_SPARC)
80
#define QEMU_ARCH QEMU_ARCH_SPARC
81
#elif defined(TARGET_XTENSA)
82
#define QEMU_ARCH QEMU_ARCH_XTENSA
83
#endif
84

    
85
const uint32_t arch_type = QEMU_ARCH;
86

    
87
/***********************************************************/
88
/* ram save/restore */
89

    
90
#define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
91
#define RAM_SAVE_FLAG_COMPRESS 0x02
92
#define RAM_SAVE_FLAG_MEM_SIZE 0x04
93
#define RAM_SAVE_FLAG_PAGE     0x08
94
#define RAM_SAVE_FLAG_EOS      0x10
95
#define RAM_SAVE_FLAG_CONTINUE 0x20
96

    
97
static int is_dup_page(uint8_t *page, uint8_t ch)
98
{
99
    uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
100
    uint32_t *array = (uint32_t *)page;
101
    int i;
102

    
103
    for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
104
        if (array[i] != val) {
105
            return 0;
106
        }
107
    }
108

    
109
    return 1;
110
}
111

    
112
static RAMBlock *last_block;
113
static ram_addr_t last_offset;
114

    
115
static int ram_save_block(QEMUFile *f)
116
{
117
    RAMBlock *block = last_block;
118
    ram_addr_t offset = last_offset;
119
    ram_addr_t current_addr;
120
    int bytes_sent = 0;
121

    
122
    if (!block)
123
        block = QLIST_FIRST(&ram_list.blocks);
124

    
125
    current_addr = block->offset + offset;
126

    
127
    do {
128
        if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
129
            uint8_t *p;
130
            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
131

    
132
            cpu_physical_memory_reset_dirty(current_addr,
133
                                            current_addr + TARGET_PAGE_SIZE,
134
                                            MIGRATION_DIRTY_FLAG);
135

    
136
            p = block->host + offset;
137

    
138
            if (is_dup_page(p, *p)) {
139
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
140
                if (!cont) {
141
                    qemu_put_byte(f, strlen(block->idstr));
142
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
143
                                    strlen(block->idstr));
144
                }
145
                qemu_put_byte(f, *p);
146
                bytes_sent = 1;
147
            } else {
148
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
149
                if (!cont) {
150
                    qemu_put_byte(f, strlen(block->idstr));
151
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
152
                                    strlen(block->idstr));
153
                }
154
                qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
155
                bytes_sent = TARGET_PAGE_SIZE;
156
            }
157

    
158
            break;
159
        }
160

    
161
        offset += TARGET_PAGE_SIZE;
162
        if (offset >= block->length) {
163
            offset = 0;
164
            block = QLIST_NEXT(block, next);
165
            if (!block)
166
                block = QLIST_FIRST(&ram_list.blocks);
167
        }
168

    
169
        current_addr = block->offset + offset;
170

    
171
    } while (current_addr != last_block->offset + last_offset);
172

    
173
    last_block = block;
174
    last_offset = offset;
175

    
176
    return bytes_sent;
177
}
178

    
179
static uint64_t bytes_transferred;
180

    
181
static ram_addr_t ram_save_remaining(void)
182
{
183
    RAMBlock *block;
184
    ram_addr_t count = 0;
185

    
186
    QLIST_FOREACH(block, &ram_list.blocks, next) {
187
        ram_addr_t addr;
188
        for (addr = block->offset; addr < block->offset + block->length;
189
             addr += TARGET_PAGE_SIZE) {
190
            if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
191
                count++;
192
            }
193
        }
194
    }
195

    
196
    return count;
197
}
198

    
199
uint64_t ram_bytes_remaining(void)
200
{
201
    return ram_save_remaining() * TARGET_PAGE_SIZE;
202
}
203

    
204
uint64_t ram_bytes_transferred(void)
205
{
206
    return bytes_transferred;
207
}
208

    
209
uint64_t ram_bytes_total(void)
210
{
211
    RAMBlock *block;
212
    uint64_t total = 0;
213

    
214
    QLIST_FOREACH(block, &ram_list.blocks, next)
215
        total += block->length;
216

    
217
    return total;
218
}
219

    
220
static int block_compar(const void *a, const void *b)
221
{
222
    RAMBlock * const *ablock = a;
223
    RAMBlock * const *bblock = b;
224
    if ((*ablock)->offset < (*bblock)->offset) {
225
        return -1;
226
    } else if ((*ablock)->offset > (*bblock)->offset) {
227
        return 1;
228
    }
229
    return 0;
230
}
231

    
232
static void sort_ram_list(void)
233
{
234
    RAMBlock *block, *nblock, **blocks;
235
    int n;
236
    n = 0;
237
    QLIST_FOREACH(block, &ram_list.blocks, next) {
238
        ++n;
239
    }
240
    blocks = g_malloc(n * sizeof *blocks);
241
    n = 0;
242
    QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
243
        blocks[n++] = block;
244
        QLIST_REMOVE(block, next);
245
    }
246
    qsort(blocks, n, sizeof *blocks, block_compar);
247
    while (--n >= 0) {
248
        QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
249
    }
250
    g_free(blocks);
251
}
252

    
253
int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
254
{
255
    ram_addr_t addr;
256
    uint64_t bytes_transferred_last;
257
    double bwidth = 0;
258
    uint64_t expected_time = 0;
259

    
260
    if (stage < 0) {
261
        cpu_physical_memory_set_dirty_tracking(0);
262
        return 0;
263
    }
264

    
265
    if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
266
        qemu_file_set_error(f);
267
        return 0;
268
    }
269

    
270
    if (stage == 1) {
271
        RAMBlock *block;
272
        bytes_transferred = 0;
273
        last_block = NULL;
274
        last_offset = 0;
275
        sort_ram_list();
276

    
277
        /* Make sure all dirty bits are set */
278
        QLIST_FOREACH(block, &ram_list.blocks, next) {
279
            for (addr = block->offset; addr < block->offset + block->length;
280
                 addr += TARGET_PAGE_SIZE) {
281
                if (!cpu_physical_memory_get_dirty(addr,
282
                                                   MIGRATION_DIRTY_FLAG)) {
283
                    cpu_physical_memory_set_dirty(addr);
284
                }
285
            }
286
        }
287

    
288
        /* Enable dirty memory tracking */
289
        cpu_physical_memory_set_dirty_tracking(1);
290

    
291
        qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
292

    
293
        QLIST_FOREACH(block, &ram_list.blocks, next) {
294
            qemu_put_byte(f, strlen(block->idstr));
295
            qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
296
            qemu_put_be64(f, block->length);
297
        }
298
    }
299

    
300
    bytes_transferred_last = bytes_transferred;
301
    bwidth = qemu_get_clock_ns(rt_clock);
302

    
303
    while (!qemu_file_rate_limit(f)) {
304
        int bytes_sent;
305

    
306
        bytes_sent = ram_save_block(f);
307
        bytes_transferred += bytes_sent;
308
        if (bytes_sent == 0) { /* no more blocks */
309
            break;
310
        }
311
    }
312

    
313
    bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
314
    bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
315

    
316
    /* if we haven't transferred anything this round, force expected_time to a
317
     * a very high value, but without crashing */
318
    if (bwidth == 0) {
319
        bwidth = 0.000001;
320
    }
321

    
322
    /* try transferring iterative blocks of memory */
323
    if (stage == 3) {
324
        int bytes_sent;
325

    
326
        /* flush all remaining blocks regardless of rate limiting */
327
        while ((bytes_sent = ram_save_block(f)) != 0) {
328
            bytes_transferred += bytes_sent;
329
        }
330
        cpu_physical_memory_set_dirty_tracking(0);
331
    }
332

    
333
    qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
334

    
335
    expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
336

    
337
    return (stage == 2) && (expected_time <= migrate_max_downtime());
338
}
339

    
340
static inline void *host_from_stream_offset(QEMUFile *f,
341
                                            ram_addr_t offset,
342
                                            int flags)
343
{
344
    static RAMBlock *block = NULL;
345
    char id[256];
346
    uint8_t len;
347

    
348
    if (flags & RAM_SAVE_FLAG_CONTINUE) {
349
        if (!block) {
350
            fprintf(stderr, "Ack, bad migration stream!\n");
351
            return NULL;
352
        }
353

    
354
        return block->host + offset;
355
    }
356

    
357
    len = qemu_get_byte(f);
358
    qemu_get_buffer(f, (uint8_t *)id, len);
359
    id[len] = 0;
360

    
361
    QLIST_FOREACH(block, &ram_list.blocks, next) {
362
        if (!strncmp(id, block->idstr, sizeof(id)))
363
            return block->host + offset;
364
    }
365

    
366
    fprintf(stderr, "Can't find block %s!\n", id);
367
    return NULL;
368
}
369

    
370
int ram_load(QEMUFile *f, void *opaque, int version_id)
371
{
372
    ram_addr_t addr;
373
    int flags;
374

    
375
    if (version_id < 3 || version_id > 4) {
376
        return -EINVAL;
377
    }
378

    
379
    do {
380
        addr = qemu_get_be64(f);
381

    
382
        flags = addr & ~TARGET_PAGE_MASK;
383
        addr &= TARGET_PAGE_MASK;
384

    
385
        if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
386
            if (version_id == 3) {
387
                if (addr != ram_bytes_total()) {
388
                    return -EINVAL;
389
                }
390
            } else {
391
                /* Synchronize RAM block list */
392
                char id[256];
393
                ram_addr_t length;
394
                ram_addr_t total_ram_bytes = addr;
395

    
396
                while (total_ram_bytes) {
397
                    RAMBlock *block;
398
                    uint8_t len;
399

    
400
                    len = qemu_get_byte(f);
401
                    qemu_get_buffer(f, (uint8_t *)id, len);
402
                    id[len] = 0;
403
                    length = qemu_get_be64(f);
404

    
405
                    QLIST_FOREACH(block, &ram_list.blocks, next) {
406
                        if (!strncmp(id, block->idstr, sizeof(id))) {
407
                            if (block->length != length)
408
                                return -EINVAL;
409
                            break;
410
                        }
411
                    }
412

    
413
                    if (!block) {
414
                        fprintf(stderr, "Unknown ramblock \"%s\", cannot "
415
                                "accept migration\n", id);
416
                        return -EINVAL;
417
                    }
418

    
419
                    total_ram_bytes -= length;
420
                }
421
            }
422
        }
423

    
424
        if (flags & RAM_SAVE_FLAG_COMPRESS) {
425
            void *host;
426
            uint8_t ch;
427

    
428
            if (version_id == 3)
429
                host = qemu_get_ram_ptr(addr);
430
            else
431
                host = host_from_stream_offset(f, addr, flags);
432
            if (!host) {
433
                return -EINVAL;
434
            }
435

    
436
            ch = qemu_get_byte(f);
437
            memset(host, ch, TARGET_PAGE_SIZE);
438
#ifndef _WIN32
439
            if (ch == 0 &&
440
                (!kvm_enabled() || kvm_has_sync_mmu())) {
441
                qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
442
            }
443
#endif
444
        } else if (flags & RAM_SAVE_FLAG_PAGE) {
445
            void *host;
446

    
447
            if (version_id == 3)
448
                host = qemu_get_ram_ptr(addr);
449
            else
450
                host = host_from_stream_offset(f, addr, flags);
451

    
452
            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
453
        }
454
        if (qemu_file_has_error(f)) {
455
            return -EIO;
456
        }
457
    } while (!(flags & RAM_SAVE_FLAG_EOS));
458

    
459
    return 0;
460
}
461

    
462
#ifdef HAS_AUDIO
463
struct soundhw {
464
    const char *name;
465
    const char *descr;
466
    int enabled;
467
    int isa;
468
    union {
469
        int (*init_isa) (qemu_irq *pic);
470
        int (*init_pci) (PCIBus *bus);
471
    } init;
472
};
473

    
474
static struct soundhw soundhw[] = {
475
#ifdef HAS_AUDIO_CHOICE
476
#if defined(TARGET_I386) || defined(TARGET_MIPS)
477
    {
478
        "pcspk",
479
        "PC speaker",
480
        0,
481
        1,
482
        { .init_isa = pcspk_audio_init }
483
    },
484
#endif
485

    
486
#ifdef CONFIG_SB16
487
    {
488
        "sb16",
489
        "Creative Sound Blaster 16",
490
        0,
491
        1,
492
        { .init_isa = SB16_init }
493
    },
494
#endif
495

    
496
#ifdef CONFIG_CS4231A
497
    {
498
        "cs4231a",
499
        "CS4231A",
500
        0,
501
        1,
502
        { .init_isa = cs4231a_init }
503
    },
504
#endif
505

    
506
#ifdef CONFIG_ADLIB
507
    {
508
        "adlib",
509
#ifdef HAS_YMF262
510
        "Yamaha YMF262 (OPL3)",
511
#else
512
        "Yamaha YM3812 (OPL2)",
513
#endif
514
        0,
515
        1,
516
        { .init_isa = Adlib_init }
517
    },
518
#endif
519

    
520
#ifdef CONFIG_GUS
521
    {
522
        "gus",
523
        "Gravis Ultrasound GF1",
524
        0,
525
        1,
526
        { .init_isa = GUS_init }
527
    },
528
#endif
529

    
530
#ifdef CONFIG_AC97
531
    {
532
        "ac97",
533
        "Intel 82801AA AC97 Audio",
534
        0,
535
        0,
536
        { .init_pci = ac97_init }
537
    },
538
#endif
539

    
540
#ifdef CONFIG_ES1370
541
    {
542
        "es1370",
543
        "ENSONIQ AudioPCI ES1370",
544
        0,
545
        0,
546
        { .init_pci = es1370_init }
547
    },
548
#endif
549

    
550
#ifdef CONFIG_HDA
551
    {
552
        "hda",
553
        "Intel HD Audio",
554
        0,
555
        0,
556
        { .init_pci = intel_hda_and_codec_init }
557
    },
558
#endif
559

    
560
#endif /* HAS_AUDIO_CHOICE */
561

    
562
    { NULL, NULL, 0, 0, { NULL } }
563
};
564

    
565
void select_soundhw(const char *optarg)
566
{
567
    struct soundhw *c;
568

    
569
    if (*optarg == '?') {
570
    show_valid_cards:
571

    
572
        printf("Valid sound card names (comma separated):\n");
573
        for (c = soundhw; c->name; ++c) {
574
            printf ("%-11s %s\n", c->name, c->descr);
575
        }
576
        printf("\n-soundhw all will enable all of the above\n");
577
        exit(*optarg != '?');
578
    }
579
    else {
580
        size_t l;
581
        const char *p;
582
        char *e;
583
        int bad_card = 0;
584

    
585
        if (!strcmp(optarg, "all")) {
586
            for (c = soundhw; c->name; ++c) {
587
                c->enabled = 1;
588
            }
589
            return;
590
        }
591

    
592
        p = optarg;
593
        while (*p) {
594
            e = strchr(p, ',');
595
            l = !e ? strlen(p) : (size_t) (e - p);
596

    
597
            for (c = soundhw; c->name; ++c) {
598
                if (!strncmp(c->name, p, l) && !c->name[l]) {
599
                    c->enabled = 1;
600
                    break;
601
                }
602
            }
603

    
604
            if (!c->name) {
605
                if (l > 80) {
606
                    fprintf(stderr,
607
                            "Unknown sound card name (too big to show)\n");
608
                }
609
                else {
610
                    fprintf(stderr, "Unknown sound card name `%.*s'\n",
611
                            (int) l, p);
612
                }
613
                bad_card = 1;
614
            }
615
            p += l + (e != NULL);
616
        }
617

    
618
        if (bad_card) {
619
            goto show_valid_cards;
620
        }
621
    }
622
}
623

    
624
void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
625
{
626
    struct soundhw *c;
627

    
628
    for (c = soundhw; c->name; ++c) {
629
        if (c->enabled) {
630
            if (c->isa) {
631
                if (isa_pic) {
632
                    c->init.init_isa(isa_pic);
633
                }
634
            } else {
635
                if (pci_bus) {
636
                    c->init.init_pci(pci_bus);
637
                }
638
            }
639
        }
640
    }
641
}
642
#else
643
void select_soundhw(const char *optarg)
644
{
645
}
646
void audio_init(qemu_irq *isa_pic, PCIBus *pci_bus)
647
{
648
}
649
#endif
650

    
651
int qemu_uuid_parse(const char *str, uint8_t *uuid)
652
{
653
    int ret;
654

    
655
    if (strlen(str) != 36) {
656
        return -1;
657
    }
658

    
659
    ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
660
                 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
661
                 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
662
                 &uuid[15]);
663

    
664
    if (ret != 16) {
665
        return -1;
666
    }
667
#ifdef TARGET_I386
668
    smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
669
#endif
670
    return 0;
671
}
672

    
673
void do_acpitable_option(const char *optarg)
674
{
675
#ifdef TARGET_I386
676
    if (acpi_table_add(optarg) < 0) {
677
        fprintf(stderr, "Wrong acpi table provided\n");
678
        exit(1);
679
    }
680
#endif
681
}
682

    
683
void do_smbios_option(const char *optarg)
684
{
685
#ifdef TARGET_I386
686
    if (smbios_entry_add(optarg) < 0) {
687
        fprintf(stderr, "Wrong smbios provided\n");
688
        exit(1);
689
    }
690
#endif
691
}
692

    
693
void cpudef_init(void)
694
{
695
#if defined(cpudef_setup)
696
    cpudef_setup(); /* parse cpu definitions in target config file */
697
#endif
698
}
699

    
700
int audio_available(void)
701
{
702
#ifdef HAS_AUDIO
703
    return 1;
704
#else
705
    return 0;
706
#endif
707
}
708

    
709
int tcg_available(void)
710
{
711
    return 1;
712
}
713

    
714
int kvm_available(void)
715
{
716
#ifdef CONFIG_KVM
717
    return 1;
718
#else
719
    return 0;
720
#endif
721
}
722

    
723
int xen_available(void)
724
{
725
#ifdef CONFIG_XEN
726
    return 1;
727
#else
728
    return 0;
729
#endif
730
}