arch_init.c 17.6 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
/*
 * QEMU System Emulator
 *
 * Copyright (c) 2003-2008 Fabrice Bellard
 *
 * 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.
 */
#include <stdint.h>
#include <stdarg.h>
26
#include <stdlib.h>
27
#ifndef _WIN32
28
#include <sys/types.h>
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
#include <sys/mman.h>
#endif
#include "config.h"
#include "monitor.h"
#include "sysemu.h"
#include "arch_init.h"
#include "audio/audio.h"
#include "hw/pc.h"
#include "hw/pci.h"
#include "hw/audiodev.h"
#include "kvm.h"
#include "migration.h"
#include "net.h"
#include "gdbstub.h"
#include "hw/smbios.h"
44
#include "exec-memory.h"
45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67

#ifdef TARGET_SPARC
int graphic_width = 1024;
int graphic_height = 768;
int graphic_depth = 8;
#else
int graphic_width = 800;
int graphic_height = 600;
int graphic_depth = 15;
#endif

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

#if defined(TARGET_ALPHA)
#define QEMU_ARCH QEMU_ARCH_ALPHA
#elif defined(TARGET_ARM)
#define QEMU_ARCH QEMU_ARCH_ARM
#elif defined(TARGET_CRIS)
#define QEMU_ARCH QEMU_ARCH_CRIS
#elif defined(TARGET_I386)
#define QEMU_ARCH QEMU_ARCH_I386
#elif defined(TARGET_M68K)
#define QEMU_ARCH QEMU_ARCH_M68K
Michael Walle's avatar
Michael Walle committed
68 69
#elif defined(TARGET_LM32)
#define QEMU_ARCH QEMU_ARCH_LM32
70 71 72 73 74 75 76 77 78 79 80 81
#elif defined(TARGET_MICROBLAZE)
#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
#elif defined(TARGET_MIPS)
#define QEMU_ARCH QEMU_ARCH_MIPS
#elif defined(TARGET_PPC)
#define QEMU_ARCH QEMU_ARCH_PPC
#elif defined(TARGET_S390X)
#define QEMU_ARCH QEMU_ARCH_S390X
#elif defined(TARGET_SH4)
#define QEMU_ARCH QEMU_ARCH_SH4
#elif defined(TARGET_SPARC)
#define QEMU_ARCH QEMU_ARCH_SPARC
Max Filippov's avatar
Max Filippov committed
82 83
#elif defined(TARGET_XTENSA)
#define QEMU_ARCH QEMU_ARCH_XTENSA
84 85 86 87 88 89 90
#endif

const uint32_t arch_type = QEMU_ARCH;

/***********************************************************/
/* ram save/restore */

91 92 93 94 95 96
#define RAM_SAVE_FLAG_FULL     0x01 /* Obsolete, not used anymore */
#define RAM_SAVE_FLAG_COMPRESS 0x02
#define RAM_SAVE_FLAG_MEM_SIZE 0x04
#define RAM_SAVE_FLAG_PAGE     0x08
#define RAM_SAVE_FLAG_EOS      0x10
#define RAM_SAVE_FLAG_CONTINUE 0x20
97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112

static int is_dup_page(uint8_t *page, uint8_t ch)
{
    uint32_t val = ch << 24 | ch << 16 | ch << 8 | ch;
    uint32_t *array = (uint32_t *)page;
    int i;

    for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
        if (array[i] != val) {
            return 0;
        }
    }

    return 1;
}

113 114 115
static RAMBlock *last_block;
static ram_addr_t last_offset;

116 117
static int ram_save_block(QEMUFile *f)
{
118 119 120
    RAMBlock *block = last_block;
    ram_addr_t offset = last_offset;
    ram_addr_t current_addr;
121
    int bytes_sent = 0;
122

123 124 125 126 127 128
    if (!block)
        block = QLIST_FIRST(&ram_list.blocks);

    current_addr = block->offset + offset;

    do {
129 130
        if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
            uint8_t *p;
131
            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
132 133 134 135 136

            cpu_physical_memory_reset_dirty(current_addr,
                                            current_addr + TARGET_PAGE_SIZE,
                                            MIGRATION_DIRTY_FLAG);

137
            p = block->host + offset;
138 139

            if (is_dup_page(p, *p)) {
140 141 142 143 144 145
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_COMPRESS);
                if (!cont) {
                    qemu_put_byte(f, strlen(block->idstr));
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
                                    strlen(block->idstr));
                }
146
                qemu_put_byte(f, *p);
147
                bytes_sent = 1;
148
            } else {
149 150 151 152 153 154
                qemu_put_be64(f, offset | cont | RAM_SAVE_FLAG_PAGE);
                if (!cont) {
                    qemu_put_byte(f, strlen(block->idstr));
                    qemu_put_buffer(f, (uint8_t *)block->idstr,
                                    strlen(block->idstr));
                }
155
                qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
156
                bytes_sent = TARGET_PAGE_SIZE;
157 158 159 160
            }

            break;
        }
161 162 163 164 165 166 167 168 169 170 171 172 173 174 175

        offset += TARGET_PAGE_SIZE;
        if (offset >= block->length) {
            offset = 0;
            block = QLIST_NEXT(block, next);
            if (!block)
                block = QLIST_FIRST(&ram_list.blocks);
        }

        current_addr = block->offset + offset;

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

    last_block = block;
    last_offset = offset;
176

177
    return bytes_sent;
178 179 180 181 182 183
}

static uint64_t bytes_transferred;

static ram_addr_t ram_save_remaining(void)
{
184
    RAMBlock *block;
185 186
    ram_addr_t count = 0;

187 188 189 190 191 192 193
    QLIST_FOREACH(block, &ram_list.blocks, next) {
        ram_addr_t addr;
        for (addr = block->offset; addr < block->offset + block->length;
             addr += TARGET_PAGE_SIZE) {
            if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
                count++;
            }
194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
        }
    }

    return count;
}

uint64_t ram_bytes_remaining(void)
{
    return ram_save_remaining() * TARGET_PAGE_SIZE;
}

uint64_t ram_bytes_transferred(void)
{
    return bytes_transferred;
}

uint64_t ram_bytes_total(void)
{
212 213 214 215 216 217 218
    RAMBlock *block;
    uint64_t total = 0;

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

    return total;
219 220
}

221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240
static int block_compar(const void *a, const void *b)
{
    RAMBlock * const *ablock = a;
    RAMBlock * const *bblock = b;
    if ((*ablock)->offset < (*bblock)->offset) {
        return -1;
    } else if ((*ablock)->offset > (*bblock)->offset) {
        return 1;
    }
    return 0;
}

static void sort_ram_list(void)
{
    RAMBlock *block, *nblock, **blocks;
    int n;
    n = 0;
    QLIST_FOREACH(block, &ram_list.blocks, next) {
        ++n;
    }
241
    blocks = g_malloc(n * sizeof *blocks);
242 243 244 245 246 247 248 249 250
    n = 0;
    QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
        blocks[n++] = block;
        QLIST_REMOVE(block, next);
    }
    qsort(blocks, n, sizeof *blocks, block_compar);
    while (--n >= 0) {
        QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
    }
251
    g_free(blocks);
252 253
}

254 255 256 257 258 259
int ram_save_live(Monitor *mon, QEMUFile *f, int stage, void *opaque)
{
    ram_addr_t addr;
    uint64_t bytes_transferred_last;
    double bwidth = 0;
    uint64_t expected_time = 0;
260
    int ret;
261 262 263 264 265 266

    if (stage < 0) {
        cpu_physical_memory_set_dirty_tracking(0);
        return 0;
    }

267
    memory_global_sync_dirty_bitmap(get_system_memory());
268 269

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

        /* Make sure all dirty bits are set */
277 278 279 280 281 282 283
        QLIST_FOREACH(block, &ram_list.blocks, next) {
            for (addr = block->offset; addr < block->offset + block->length;
                 addr += TARGET_PAGE_SIZE) {
                if (!cpu_physical_memory_get_dirty(addr,
                                                   MIGRATION_DIRTY_FLAG)) {
                    cpu_physical_memory_set_dirty(addr);
                }
284 285 286 287 288 289
            }
        }

        /* Enable dirty memory tracking */
        cpu_physical_memory_set_dirty_tracking(1);

290
        qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);
291 292 293 294 295 296

        QLIST_FOREACH(block, &ram_list.blocks, next) {
            qemu_put_byte(f, strlen(block->idstr));
            qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
            qemu_put_be64(f, block->length);
        }
297 298 299 300 301
    }

    bytes_transferred_last = bytes_transferred;
    bwidth = qemu_get_clock_ns(rt_clock);

302
    while ((ret = qemu_file_rate_limit(f)) == 0) {
303
        int bytes_sent;
304

305 306 307
        bytes_sent = ram_save_block(f);
        bytes_transferred += bytes_sent;
        if (bytes_sent == 0) { /* no more blocks */
308 309 310 311
            break;
        }
    }

312 313 314 315
    if (ret < 0) {
        return ret;
    }

316 317 318 319 320 321 322 323 324 325 326
    bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
    bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;

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

    /* try transferring iterative blocks of memory */
    if (stage == 3) {
327 328
        int bytes_sent;

329
        /* flush all remaining blocks regardless of rate limiting */
330 331
        while ((bytes_sent = ram_save_block(f)) != 0) {
            bytes_transferred += bytes_sent;
332 333 334 335 336 337 338 339 340 341 342
        }
        cpu_physical_memory_set_dirty_tracking(0);
    }

    qemu_put_be64(f, RAM_SAVE_FLAG_EOS);

    expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;

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

343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372
static inline void *host_from_stream_offset(QEMUFile *f,
                                            ram_addr_t offset,
                                            int flags)
{
    static RAMBlock *block = NULL;
    char id[256];
    uint8_t len;

    if (flags & RAM_SAVE_FLAG_CONTINUE) {
        if (!block) {
            fprintf(stderr, "Ack, bad migration stream!\n");
            return NULL;
        }

        return block->host + offset;
    }

    len = qemu_get_byte(f);
    qemu_get_buffer(f, (uint8_t *)id, len);
    id[len] = 0;

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

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

373 374 375 376
int ram_load(QEMUFile *f, void *opaque, int version_id)
{
    ram_addr_t addr;
    int flags;
377
    int error;
378

379
    if (version_id < 3 || version_id > 4) {
380 381 382 383 384 385 386 387 388 389
        return -EINVAL;
    }

    do {
        addr = qemu_get_be64(f);

        flags = addr & ~TARGET_PAGE_MASK;
        addr &= TARGET_PAGE_MASK;

        if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417
            if (version_id == 3) {
                if (addr != ram_bytes_total()) {
                    return -EINVAL;
                }
            } else {
                /* Synchronize RAM block list */
                char id[256];
                ram_addr_t length;
                ram_addr_t total_ram_bytes = addr;

                while (total_ram_bytes) {
                    RAMBlock *block;
                    uint8_t len;

                    len = qemu_get_byte(f);
                    qemu_get_buffer(f, (uint8_t *)id, len);
                    id[len] = 0;
                    length = qemu_get_be64(f);

                    QLIST_FOREACH(block, &ram_list.blocks, next) {
                        if (!strncmp(id, block->idstr, sizeof(id))) {
                            if (block->length != length)
                                return -EINVAL;
                            break;
                        }
                    }

                    if (!block) {
418 419 420
                        fprintf(stderr, "Unknown ramblock \"%s\", cannot "
                                "accept migration\n", id);
                        return -EINVAL;
421 422 423 424
                    }

                    total_ram_bytes -= length;
                }
425 426 427 428
            }
        }

        if (flags & RAM_SAVE_FLAG_COMPRESS) {
429 430 431
            void *host;
            uint8_t ch;

432
            if (version_id == 3)
433
                host = qemu_get_ram_ptr(addr);
434 435
            else
                host = host_from_stream_offset(f, addr, flags);
436 437 438
            if (!host) {
                return -EINVAL;
            }
439 440 441

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

451
            if (version_id == 3)
452
                host = qemu_get_ram_ptr(addr);
453 454
            else
                host = host_from_stream_offset(f, addr, flags);
455 456

            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
457
        }
458 459 460
        error = qemu_file_get_error(f);
        if (error) {
            return error;
461 462 463 464 465 466 467
        }
    } while (!(flags & RAM_SAVE_FLAG_EOS));

    return 0;
}

#ifdef HAS_AUDIO
468 469 470 471 472 473
struct soundhw {
    const char *name;
    const char *descr;
    int enabled;
    int isa;
    union {
474
        int (*init_isa) (ISABus *bus);
475 476 477 478 479
        int (*init_pci) (PCIBus *bus);
    } init;
};

static struct soundhw soundhw[] = {
480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554
#ifdef HAS_AUDIO_CHOICE
#if defined(TARGET_I386) || defined(TARGET_MIPS)
    {
        "pcspk",
        "PC speaker",
        0,
        1,
        { .init_isa = pcspk_audio_init }
    },
#endif

#ifdef CONFIG_SB16
    {
        "sb16",
        "Creative Sound Blaster 16",
        0,
        1,
        { .init_isa = SB16_init }
    },
#endif

#ifdef CONFIG_CS4231A
    {
        "cs4231a",
        "CS4231A",
        0,
        1,
        { .init_isa = cs4231a_init }
    },
#endif

#ifdef CONFIG_ADLIB
    {
        "adlib",
#ifdef HAS_YMF262
        "Yamaha YMF262 (OPL3)",
#else
        "Yamaha YM3812 (OPL2)",
#endif
        0,
        1,
        { .init_isa = Adlib_init }
    },
#endif

#ifdef CONFIG_GUS
    {
        "gus",
        "Gravis Ultrasound GF1",
        0,
        1,
        { .init_isa = GUS_init }
    },
#endif

#ifdef CONFIG_AC97
    {
        "ac97",
        "Intel 82801AA AC97 Audio",
        0,
        0,
        { .init_pci = ac97_init }
    },
#endif

#ifdef CONFIG_ES1370
    {
        "es1370",
        "ENSONIQ AudioPCI ES1370",
        0,
        0,
        { .init_pci = es1370_init }
    },
#endif

555 556 557 558 559 560 561 562 563 564
#ifdef CONFIG_HDA
    {
        "hda",
        "Intel HD Audio",
        0,
        0,
        { .init_pci = intel_hda_and_codec_init }
    },
#endif

565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627
#endif /* HAS_AUDIO_CHOICE */

    { NULL, NULL, 0, 0, { NULL } }
};

void select_soundhw(const char *optarg)
{
    struct soundhw *c;

    if (*optarg == '?') {
    show_valid_cards:

        printf("Valid sound card names (comma separated):\n");
        for (c = soundhw; c->name; ++c) {
            printf ("%-11s %s\n", c->name, c->descr);
        }
        printf("\n-soundhw all will enable all of the above\n");
        exit(*optarg != '?');
    }
    else {
        size_t l;
        const char *p;
        char *e;
        int bad_card = 0;

        if (!strcmp(optarg, "all")) {
            for (c = soundhw; c->name; ++c) {
                c->enabled = 1;
            }
            return;
        }

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

            for (c = soundhw; c->name; ++c) {
                if (!strncmp(c->name, p, l) && !c->name[l]) {
                    c->enabled = 1;
                    break;
                }
            }

            if (!c->name) {
                if (l > 80) {
                    fprintf(stderr,
                            "Unknown sound card name (too big to show)\n");
                }
                else {
                    fprintf(stderr, "Unknown sound card name `%.*s'\n",
                            (int) l, p);
                }
                bad_card = 1;
            }
            p += l + (e != NULL);
        }

        if (bad_card) {
            goto show_valid_cards;
        }
    }
}
628

629
void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
630 631 632 633 634 635
{
    struct soundhw *c;

    for (c = soundhw; c->name; ++c) {
        if (c->enabled) {
            if (c->isa) {
636 637
                if (isa_bus) {
                    c->init.init_isa(isa_bus);
638 639 640 641 642 643 644 645 646
                }
            } else {
                if (pci_bus) {
                    c->init.init_pci(pci_bus);
                }
            }
        }
    }
}
647 648 649 650
#else
void select_soundhw(const char *optarg)
{
}
651
void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
652 653
{
}
654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
#endif

int qemu_uuid_parse(const char *str, uint8_t *uuid)
{
    int ret;

    if (strlen(str) != 36) {
        return -1;
    }

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

    if (ret != 16) {
        return -1;
    }
#ifdef TARGET_I386
    smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
#endif
    return 0;
}

void do_acpitable_option(const char *optarg)
{
#ifdef TARGET_I386
    if (acpi_table_add(optarg) < 0) {
        fprintf(stderr, "Wrong acpi table provided\n");
        exit(1);
    }
#endif
}

void do_smbios_option(const char *optarg)
{
#ifdef TARGET_I386
    if (smbios_entry_add(optarg) < 0) {
        fprintf(stderr, "Wrong smbios provided\n");
        exit(1);
    }
#endif
}

void cpudef_init(void)
{
#if defined(cpudef_setup)
    cpudef_setup(); /* parse cpu definitions in target config file */
#endif
}

int audio_available(void)
{
#ifdef HAS_AUDIO
    return 1;
#else
    return 0;
#endif
}

714 715 716 717 718
int tcg_available(void)
{
    return 1;
}

719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735
int kvm_available(void)
{
#ifdef CONFIG_KVM
    return 1;
#else
    return 0;
#endif
}

int xen_available(void)
{
#ifdef CONFIG_XEN
    return 1;
#else
    return 0;
#endif
}