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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:
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 *
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
#include "exec-memory.h"
45
#include "hw/pcspk.h"
46

    
47
#ifdef TARGET_SPARC
48
int graphic_width = 1024;
49
int graphic_height = 768;
50
int graphic_depth = 8;
51
#else
52
int graphic_width = 800;
53
int graphic_height = 600;
54
int graphic_depth = 15;
55
#endif
56

    
57
const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
58

    
59
#if defined(TARGET_ALPHA)
60
#define QEMU_ARCH QEMU_ARCH_ALPHA
61
#elif defined(TARGET_ARM)
62
#define QEMU_ARCH QEMU_ARCH_ARM
63
#elif defined(TARGET_CRIS)
64
#define QEMU_ARCH QEMU_ARCH_CRIS
65
#elif defined(TARGET_I386)
66
#define QEMU_ARCH QEMU_ARCH_I386
67
#elif defined(TARGET_M68K)
68
#define QEMU_ARCH QEMU_ARCH_M68K
69
#elif defined(TARGET_LM32)
70
#define QEMU_ARCH QEMU_ARCH_LM32
71
#elif defined(TARGET_MICROBLAZE)
72
#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
73
#elif defined(TARGET_MIPS)
74
#define QEMU_ARCH QEMU_ARCH_MIPS
75
#elif defined(TARGET_PPC)
76
#define QEMU_ARCH QEMU_ARCH_PPC
77
#elif defined(TARGET_S390X)
78
#define QEMU_ARCH QEMU_ARCH_S390X
79
#elif defined(TARGET_SH4)
80
#define QEMU_ARCH QEMU_ARCH_SH4
81
#elif defined(TARGET_SPARC)
82
#define QEMU_ARCH QEMU_ARCH_SPARC
83
#elif defined(TARGET_XTENSA)
84
#define QEMU_ARCH QEMU_ARCH_XTENSA
85
#endif
86

    
87
const uint32_t arch_type = QEMU_ARCH;
88

    
89
/***********************************************************/
90
/* ram save/restore */
91

    
92
#define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
93
#define RAM_SAVE_FLAG_COMPRESS 0x02
94
#define RAM_SAVE_FLAG_MEM_SIZE 0x04
95
#define RAM_SAVE_FLAG_PAGE     0x08
96
#define RAM_SAVE_FLAG_EOS      0x10
97
#define RAM_SAVE_FLAG_CONTINUE 0x20
98

    
99
#ifdef __ALTIVEC__
100
#include <altivec.h>
101
#define VECTYPE        vector unsigned char
102
#define SPLAT(p)       vec_splat(vec_ld(0, p), 0)
103
#define ALL_EQ(v1, v2) vec_all_eq(v1, v2)
104
#elif defined __SSE2__
105
#include <emmintrin.h>
106
#define VECTYPE        __m128i
107
#define SPLAT(p)       _mm_set1_epi8(*(p))
108
#define ALL_EQ(v1, v2) (_mm_movemask_epi8(_mm_cmpeq_epi8(v1, v2)) == 0xFFFF)
109
#else
110
#define VECTYPE        unsigned long
111
#define SPLAT(p)       (*(p) * (~0UL / 255))
112
#define ALL_EQ(v1, v2) ((v1) == (v2))
113
#endif
114

    
115
static int is_dup_page(uint8_t *page)
116
{
117
    VECTYPE *p = (VECTYPE *)page;
118
    VECTYPE val = SPLAT(page);
119
    int i;
120

    
121
    for (i = 0; i < TARGET_PAGE_SIZE / sizeof(VECTYPE); i++) {
122
        if (!ALL_EQ(val, p[i])) {
123
            return 0;
124
        }
125
    }
126

    
127
    return 1;
128
}
129

    
130
static RAMBlock *last_block;
131
static ram_addr_t last_offset;
132

    
133
static int ram_save_block(QEMUFile *f)
134
{
135
    RAMBlock *block = last_block;
136
    ram_addr_t offset = last_offset;
137
    int bytes_sent = 0;
138
    MemoryRegion *mr;
139

    
140
    if (!block)
141
        block = QLIST_FIRST(&ram_list.blocks);
142

    
143
    do {
144
        mr = block->mr;
145
        if (memory_region_get_dirty(mr, offset, TARGET_PAGE_SIZE,
146
                                    DIRTY_MEMORY_MIGRATION)) {
147
            uint8_t *p;
148
            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
149

    
150
            memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
151
                                      DIRTY_MEMORY_MIGRATION);
152

    
153
            p = memory_region_get_ram_ptr(mr) + offset;
154

    
155
            if (is_dup_page(p)) {
156
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
157
                if (!cont) {
158
                    qemu_put_byte(f, strlen(block->idstr));
159
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
160
                                    strlen(block->idstr));
161
                }
162
                qemu_put_byte(f, *p);
163
                bytes_sent = 1;
164
            } else {
165
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
166
                if (!cont) {
167
                    qemu_put_byte(f, strlen(block->idstr));
168
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
169
                                    strlen(block->idstr));
170
                }
171
                qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
172
                bytes_sent = TARGET_PAGE_SIZE;
173
            }
174

    
175
            break;
176
        }
177

    
178
        offset += TARGET_PAGE_SIZE;
179
        if (offset >= block->length) {
180
            offset = 0;
181
            block = QLIST_NEXT(block, next);
182
            if (!block)
183
                block = QLIST_FIRST(&ram_list.blocks);
184
        }
185
    } while (block != last_block || offset != last_offset);
186

    
187
    last_block = block;
188
    last_offset = offset;
189

    
190
    return bytes_sent;
191
}
192

    
193
static uint64_t bytes_transferred;
194

    
195
static ram_addr_t ram_save_remaining(void)
196
{
197
    RAMBlock *block;
198
    ram_addr_t count = 0;
199

    
200
    QLIST_FOREACH(block, &ram_list.blocks, next) {
201
        ram_addr_t addr;
202
        for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
203
            if (memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
204
                                        DIRTY_MEMORY_MIGRATION)) {
205
                count++;
206
            }
207
        }
208
    }
209

    
210
    return count;
211
}
212

    
213
uint64_t ram_bytes_remaining(void)
214
{
215
    return ram_save_remaining() * TARGET_PAGE_SIZE;
216
}
217

    
218
uint64_t ram_bytes_transferred(void)
219
{
220
    return bytes_transferred;
221
}
222

    
223
uint64_t ram_bytes_total(void)
224
{
225
    RAMBlock *block;
226
    uint64_t total = 0;
227

    
228
    QLIST_FOREACH(block, &ram_list.blocks, next)
229
        total += block->length;
230

    
231
    return total;
232
}
233

    
234
static int block_compar(const void *a, const void *b)
235
{
236
    RAMBlock * const *ablock = a;
237
    RAMBlock * const *bblock = b;
238

    
239
    return strcmp((*ablock)->idstr, (*bblock)->idstr);
240
}
241

    
242
static void sort_ram_list(void)
243
{
244
    RAMBlock *block, *nblock, **blocks;
245
    int n;
246
    n = 0;
247
    QLIST_FOREACH(block, &ram_list.blocks, next) {
248
        ++n;
249
    }
250
    blocks = g_malloc(n * sizeof *blocks);
251
    n = 0;
252
    QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
253
        blocks[n++] = block;
254
        QLIST_REMOVE(block, next);
255
    }
256
    qsort(blocks, n, sizeof *blocks, block_compar);
257
    while (--n >= 0) {
258
        QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
259
    }
260
    g_free(blocks);
261
}
262

    
263
int ram_save_live(QEMUFile *f, int stage, void *opaque)
264
{
265
    ram_addr_t addr;
266
    uint64_t bytes_transferred_last;
267
    double bwidth = 0;
268
    uint64_t expected_time = 0;
269
    int ret;
270

    
271
    if (stage < 0) {
272
        memory_global_dirty_log_stop();
273
        return 0;
274
    }
275

    
276
    memory_global_sync_dirty_bitmap(get_system_memory());
277

    
278
    if (stage == 1) {
279
        RAMBlock *block;
280
        bytes_transferred = 0;
281
        last_block = NULL;
282
        last_offset = 0;
283
        sort_ram_list();
284

    
285
        /* Make sure all dirty bits are set */
286
        QLIST_FOREACH(block, &ram_list.blocks, next) {
287
            for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
288
                if (!memory_region_get_dirty(block->mr, addr, TARGET_PAGE_SIZE,
289
                                             DIRTY_MEMORY_MIGRATION)) {
290
                    memory_region_set_dirty(block->mr, addr, TARGET_PAGE_SIZE);
291
                }
292
            }
293
        }
294

    
295
        memory_global_dirty_log_start();
296

    
297
        qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
298

    
299
        QLIST_FOREACH(block, &ram_list.blocks, next) {
300
            qemu_put_byte(f, strlen(block->idstr));
301
            qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
302
            qemu_put_be64(f, block->length);
303
        }
304
    }
305

    
306
    bytes_transferred_last = bytes_transferred;
307
    bwidth = qemu_get_clock_ns(rt_clock);
308

    
309
    while ((ret = qemu_file_rate_limit(f)) == 0) {
310
        int bytes_sent;
311

    
312
        bytes_sent = ram_save_block(f);
313
        bytes_transferred += bytes_sent;
314
        if (bytes_sent == 0) { /* no more blocks */
315
            break;
316
        }
317
    }
318

    
319
    if (ret < 0) {
320
        return ret;
321
    }
322

    
323
    bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
324
    bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
325

    
326
    /* if we haven't transferred anything this round, force expected_time to a
327
     * a very high value, but without crashing */
328
    if (bwidth == 0) {
329
        bwidth = 0.000001;
330
    }
331

    
332
    /* try transferring iterative blocks of memory */
333
    if (stage == 3) {
334
        int bytes_sent;
335

    
336
        /* flush all remaining blocks regardless of rate limiting */
337
        while ((bytes_sent = ram_save_block(f)) != 0) {
338
            bytes_transferred += bytes_sent;
339
        }
340
        memory_global_dirty_log_stop();
341
    }
342

    
343
    qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
344

    
345
    expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
346

    
347
    return (stage == 2) && (expected_time <= migrate_max_downtime());
348
}
349

    
350
static inline void *host_from_stream_offset(QEMUFile *f,
351
                                            ram_addr_t offset,
352
                                            int flags)
353
{
354
    static RAMBlock *block = NULL;
355
    char id[256];
356
    uint8_t len;
357

    
358
    if (flags & RAM_SAVE_FLAG_CONTINUE) {
359
        if (!block) {
360
            fprintf(stderr, "Ack, bad migration stream!\n");
361
            return NULL;
362
        }
363

    
364
        return memory_region_get_ram_ptr(block->mr) + offset;
365
    }
366

    
367
    len = qemu_get_byte(f);
368
    qemu_get_buffer(f, (uint8_t *)id, len);
369
    id[len] = 0;
370

    
371
    QLIST_FOREACH(block, &ram_list.blocks, next) {
372
        if (!strncmp(id, block->idstr, sizeof(id)))
373
            return memory_region_get_ram_ptr(block->mr) + offset;
374
    }
375

    
376
    fprintf(stderr, "Can't find block %s!\n", id);
377
    return NULL;
378
}
379

    
380
int ram_load(QEMUFile *f, void *opaque, int version_id)
381
{
382
    ram_addr_t addr;
383
    int flags;
384
    int error;
385

    
386
    if (version_id < 4 || version_id > 4) {
387
        return -EINVAL;
388
    }
389

    
390
    do {
391
        addr = qemu_get_be64(f);
392

    
393
        flags = addr & ~TARGET_PAGE_MASK;
394
        addr &= TARGET_PAGE_MASK;
395

    
396
        if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
397
            if (version_id == 4) {
398
                /* Synchronize RAM block list */
399
                char id[256];
400
                ram_addr_t length;
401
                ram_addr_t total_ram_bytes = addr;
402

    
403
                while (total_ram_bytes) {
404
                    RAMBlock *block;
405
                    uint8_t len;
406

    
407
                    len = qemu_get_byte(f);
408
                    qemu_get_buffer(f, (uint8_t *)id, len);
409
                    id[len] = 0;
410
                    length = qemu_get_be64(f);
411

    
412
                    QLIST_FOREACH(block, &ram_list.blocks, next) {
413
                        if (!strncmp(id, block->idstr, sizeof(id))) {
414
                            if (block->length != length)
415
                                return -EINVAL;
416
                            break;
417
                        }
418
                    }
419

    
420
                    if (!block) {
421
                        fprintf(stderr, "Unknown ramblock \"%s\", cannot "
422
                                "accept migration\n", id);
423
                        return -EINVAL;
424
                    }
425

    
426
                    total_ram_bytes -= length;
427
                }
428
            }
429
        }
430

    
431
        if (flags & RAM_SAVE_FLAG_COMPRESS) {
432
            void *host;
433
            uint8_t ch;
434

    
435
            host = host_from_stream_offset(f, addr, flags);
436
            if (!host) {
437
                return -EINVAL;
438
            }
439

    
440
            ch = qemu_get_byte(f);
441
            memset(host, ch, TARGET_PAGE_SIZE);
442
#ifndef _WIN32
443
            if (ch == 0 &&
444
                (!kvm_enabled() || kvm_has_sync_mmu())) {
445
                qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
446
            }
447
#endif
448
        } else if (flags & RAM_SAVE_FLAG_PAGE) {
449
            void *host;
450

    
451
            host = host_from_stream_offset(f, addr, flags);
452

    
453
            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
454
        }
455
        error = qemu_file_get_error(f);
456
        if (error) {
457
            return error;
458
        }
459
    } while (!(flags & RAM_SAVE_FLAG_EOS));
460

    
461
    return 0;
462
}
463

    
464
#ifdef HAS_AUDIO
465
struct soundhw {
466
    const char *name;
467
    const char *descr;
468
    int enabled;
469
    int isa;
470
    union {
471
        int (*init_isa) (ISABus *bus);
472
        int (*init_pci) (PCIBus *bus);
473
    } init;
474
};
475

    
476
static struct soundhw soundhw[] = {
477
#ifdef HAS_AUDIO_CHOICE
478
#if defined(TARGET_I386) || defined(TARGET_MIPS)
479
    {
480
        "pcspk",
481
        "PC speaker",
482
        0,
483
        1,
484
        { .init_isa = pcspk_audio_init }
485
    },
486
#endif
487

    
488
#ifdef CONFIG_SB16
489
    {
490
        "sb16",
491
        "Creative Sound Blaster 16",
492
        0,
493
        1,
494
        { .init_isa = SB16_init }
495
    },
496
#endif
497

    
498
#ifdef CONFIG_CS4231A
499
    {
500
        "cs4231a",
501
        "CS4231A",
502
        0,
503
        1,
504
        { .init_isa = cs4231a_init }
505
    },
506
#endif
507

    
508
#ifdef CONFIG_ADLIB
509
    {
510
        "adlib",
511
#ifdef HAS_YMF262
512
        "Yamaha YMF262 (OPL3)",
513
#else
514
        "Yamaha YM3812 (OPL2)",
515
#endif
516
        0,
517
        1,
518
        { .init_isa = Adlib_init }
519
    },
520
#endif
521

    
522
#ifdef CONFIG_GUS
523
    {
524
        "gus",
525
        "Gravis Ultrasound GF1",
526
        0,
527
        1,
528
        { .init_isa = GUS_init }
529
    },
530
#endif
531

    
532
#ifdef CONFIG_AC97
533
    {
534
        "ac97",
535
        "Intel 82801AA AC97 Audio",
536
        0,
537
        0,
538
        { .init_pci = ac97_init }
539
    },
540
#endif
541

    
542
#ifdef CONFIG_ES1370
543
    {
544
        "es1370",
545
        "ENSONIQ AudioPCI ES1370",
546
        0,
547
        0,
548
        { .init_pci = es1370_init }
549
    },
550
#endif
551

    
552
#ifdef CONFIG_HDA
553
    {
554
        "hda",
555
        "Intel HD Audio",
556
        0,
557
        0,
558
        { .init_pci = intel_hda_and_codec_init }
559
    },
560
#endif
561

    
562
#endif /* HAS_AUDIO_CHOICE */
563

    
564
    { NULL, NULL, 0, 0, { NULL } }
565
};
566

    
567
void select_soundhw(const char *optarg)
568
{
569
    struct soundhw *c;
570

    
571
    if (*optarg == '?') {
572
    show_valid_cards:
573

    
574
        printf("Valid sound card names (comma separated):\n");
575
        for (c = soundhw; c->name; ++c) {
576
            printf ("%-11s %s\n", c->name, c->descr);
577
        }
578
        printf("\n-soundhw all will enable all of the above\n");
579
        exit(*optarg != '?');
580
    }
581
    else {
582
        size_t l;
583
        const char *p;
584
        char *e;
585
        int bad_card = 0;
586

    
587
        if (!strcmp(optarg, "all")) {
588
            for (c = soundhw; c->name; ++c) {
589
                c->enabled = 1;
590
            }
591
            return;
592
        }
593

    
594
        p = optarg;
595
        while (*p) {
596
            e = strchr(p, ',');
597
            l = !e ? strlen(p) : (size_t) (e - p);
598

    
599
            for (c = soundhw; c->name; ++c) {
600
                if (!strncmp(c->name, p, l) && !c->name[l]) {
601
                    c->enabled = 1;
602
                    break;
603
                }
604
            }
605

    
606
            if (!c->name) {
607
                if (l > 80) {
608
                    fprintf(stderr,
609
                            "Unknown sound card name (too big to show)\n");
610
                }
611
                else {
612
                    fprintf(stderr, "Unknown sound card name `%.*s'\n",
613
                            (int) l, p);
614
                }
615
                bad_card = 1;
616
            }
617
            p += l + (e != NULL);
618
        }
619

    
620
        if (bad_card) {
621
            goto show_valid_cards;
622
        }
623
    }
624
}
625

    
626
void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
627
{
628
    struct soundhw *c;
629

    
630
    for (c = soundhw; c->name; ++c) {
631
        if (c->enabled) {
632
            if (c->isa) {
633
                if (isa_bus) {
634
                    c->init.init_isa(isa_bus);
635
                }
636
            } else {
637
                if (pci_bus) {
638
                    c->init.init_pci(pci_bus);
639
                }
640
            }
641
        }
642
    }
643
}
644
#else
645
void select_soundhw(const char *optarg)
646
{
647
}
648
void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
649
{
650
}
651
#endif
652

    
653
int qemu_uuid_parse(const char *str, uint8_t *uuid)
654
{
655
    int ret;
656

    
657
    if (strlen(str) != 36) {
658
        return -1;
659
    }
660

    
661
    ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
662
                 &uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
663
                 &uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
664
                 &uuid[15]);
665

    
666
    if (ret != 16) {
667
        return -1;
668
    }
669
#ifdef TARGET_I386
670
    smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
671
#endif
672
    return 0;
673
}
674

    
675
void do_acpitable_option(const char *optarg)
676
{
677
#ifdef TARGET_I386
678
    if (acpi_table_add(optarg) < 0) {
679
        fprintf(stderr, "Wrong acpi table provided\n");
680
        exit(1);
681
    }
682
#endif
683
}
684

    
685
void do_smbios_option(const char *optarg)
686
{
687
#ifdef TARGET_I386
688
    if (smbios_entry_add(optarg) < 0) {
689
        fprintf(stderr, "Wrong smbios provided\n");
690
        exit(1);
691
    }
692
#endif
693
}
694

    
695
void cpudef_init(void)
696
{
697
#if defined(cpudef_setup)
698
    cpudef_setup(); /* parse cpu definitions in target config file */
699
#endif
700
}
701

    
702
int audio_available(void)
703
{
704
#ifdef HAS_AUDIO
705
    return 1;
706
#else
707
    return 0;
708
#endif
709
}
710

    
711
int tcg_available(void)
712
{
713
    return 1;
714
}
715

    
716
int kvm_available(void)
717
{
718
#ifdef CONFIG_KVM
719
    return 1;
720
#else
721
    return 0;
722
#endif
723
}
724

    
725
int xen_available(void)
726
{
727
#ifdef CONFIG_XEN
728
    return 1;
729
#else
730
    return 0;
731
#endif
732
}