[qemu.git] / arch_init.c

/*
 * 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>
#include <stdlib.h>
#ifndef _WIN32
#include <sys/types.h>
#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"
#include "exec-memory.h"

#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
#elif defined(TARGET_LM32)
#define QEMU_ARCH QEMU_ARCH_LM32
#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
#elif defined(TARGET_XTENSA)
#define QEMU_ARCH QEMU_ARCH_XTENSA
#endif

const uint32_t arch_type = QEMU_ARCH;

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

#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

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;
}

static RAMBlock *last_block;
static ram_addr_t last_offset;

static int ram_save_block(QEMUFile *f)
{
    RAMBlock *block = last_block;
    ram_addr_t offset = last_offset;
    int bytes_sent = 0;
    MemoryRegion *mr;

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

    do {
        mr = block->mr;
        if (memory_region_get_dirty(mr, offset, DIRTY_MEMORY_MIGRATION)) {
            uint8_t *p;
            int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;

            memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
                                      DIRTY_MEMORY_MIGRATION);

            p = memory_region_get_ram_ptr(mr) + offset;

            if (is_dup_page(p, *p)) {
                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));
                }
                qemu_put_byte(f, *p);
                bytes_sent = 1;
            } else {
                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));
                }
                qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
                bytes_sent = TARGET_PAGE_SIZE;
            }

            break;
        }

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

    last_block = block;
    last_offset = offset;

    return bytes_sent;
}

static uint64_t bytes_transferred;

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

    QLIST_FOREACH(block, &ram_list.blocks, next) {
        ram_addr_t addr;
        for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
            if (memory_region_get_dirty(block->mr, addr,
                                        DIRTY_MEMORY_MIGRATION)) {
                count++;
            }
        }
    }

    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)
{
    RAMBlock *block;
    uint64_t total = 0;

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

    return total;
}

static int block_compar(const void *a, const void *b)
{
    RAMBlock * const *ablock = a;
    RAMBlock * const *bblock = b;

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

static void sort_ram_list(void)
{
    RAMBlock *block, *nblock, **blocks;
    int n;
    n = 0;
    QLIST_FOREACH(block, &ram_list.blocks, next) {
        ++n;
    }
    blocks = g_malloc(n * sizeof *blocks);
    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);
    }
    g_free(blocks);
}

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;
    int ret;

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

    memory_global_sync_dirty_bitmap(get_system_memory());

    if (stage == 1) {
        RAMBlock *block;
        bytes_transferred = 0;
        last_block = NULL;
        last_offset = 0;
        sort_ram_list();

        /* Make sure all dirty bits are set */
        QLIST_FOREACH(block, &ram_list.blocks, next) {
            for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
                if (!memory_region_get_dirty(block->mr, addr,
                                             DIRTY_MEMORY_MIGRATION)) {
                    memory_region_set_dirty(block->mr, addr);
                }
            }
        }

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

        qemu_put_be64(f, ram_bytes_total() | RAM_SAVE_FLAG_MEM_SIZE);

        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);
        }
    }

    bytes_transferred_last = bytes_transferred;
    bwidth = qemu_get_clock_ns(rt_clock);

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

        bytes_sent = ram_save_block(f);
        bytes_transferred += bytes_sent;
        if (bytes_sent == 0) { /* no more blocks */
            break;
        }
    }

    if (ret < 0) {
        return ret;
    }

    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) {
        int bytes_sent;

        /* flush all remaining blocks regardless of rate limiting */
        while ((bytes_sent = ram_save_block(f)) != 0) {
            bytes_transferred += bytes_sent;
        }
        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());
}

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;
}

int ram_load(QEMUFile *f, void *opaque, int version_id)
{
    ram_addr_t addr;
    int flags;
    int error;

    if (version_id < 4 || version_id > 4) {
        return -EINVAL;
    }

    do {
        addr = qemu_get_be64(f);

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

        if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
            if (version_id == 4) {
                /* 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) {
                        fprintf(stderr, "Unknown ramblock \"%s\", cannot "
                                "accept migration\n", id);
                        return -EINVAL;
                    }

                    total_ram_bytes -= length;
                }
            }
        }

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

            host = host_from_stream_offset(f, addr, flags);
            if (!host) {
                return -EINVAL;
            }

            ch = qemu_get_byte(f);
            memset(host, ch, TARGET_PAGE_SIZE);
#ifndef _WIN32
            if (ch == 0 &&
                (!kvm_enabled() || kvm_has_sync_mmu())) {
                qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
            }
#endif
        } else if (flags & RAM_SAVE_FLAG_PAGE) {
            void *host;

            host = host_from_stream_offset(f, addr, flags);

            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
        }
        error = qemu_file_get_error(f);
        if (error) {
            return error;
        }
    } while (!(flags & RAM_SAVE_FLAG_EOS));

    return 0;
}

#ifdef HAS_AUDIO
struct soundhw {
    const char *name;
    const char *descr;
    int enabled;
    int isa;
    union {
        int (*init_isa) (ISABus *bus);
        int (*init_pci) (PCIBus *bus);
    } init;
};

static struct soundhw soundhw[] = {
#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

#ifdef CONFIG_HDA
    {
        "hda",
        "Intel HD Audio",
        0,
        0,
        { .init_pci = intel_hda_and_codec_init }
    },
#endif

#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;
        }
    }
}

void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
{
    struct soundhw *c;

    for (c = soundhw; c->name; ++c) {
        if (c->enabled) {
            if (c->isa) {
                if (isa_bus) {
                    c->init.init_isa(isa_bus);
                }
            } else {
                if (pci_bus) {
                    c->init.init_pci(pci_bus);
                }
            }
        }
    }
}
#else
void select_soundhw(const char *optarg)
{
}
void audio_init(ISABus *isa_bus, PCIBus *pci_bus)
{
}
#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
}

int tcg_available(void)
{
    return 1;
}

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
}
Commit	Line	Data
ad96090a BS	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>
b2e0a138	26	#include <stdlib.h>
ad96090a	27	#ifndef _WIN32
1c47cb16	28	#include <sys/types.h>
ad96090a BS	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"
86e775c6	44	#include "exec-memory.h"
ad96090a BS	45
	46	#ifdef TARGET_SPARC
	47	int graphic_width = 1024;
	48	int graphic_height = 768;
	49	int graphic_depth = 8;
	50	#else
	51	int graphic_width = 800;
	52	int graphic_height = 600;
	53	int graphic_depth = 15;
	54	#endif
	55
	56	const char arch_config_name[] = CONFIG_QEMU_CONFDIR "/target-" TARGET_ARCH ".conf";
	57
	58	#if defined(TARGET_ALPHA)
	59	#define QEMU_ARCH QEMU_ARCH_ALPHA
	60	#elif defined(TARGET_ARM)
	61	#define QEMU_ARCH QEMU_ARCH_ARM
	62	#elif defined(TARGET_CRIS)
	63	#define QEMU_ARCH QEMU_ARCH_CRIS
	64	#elif defined(TARGET_I386)
	65	#define QEMU_ARCH QEMU_ARCH_I386
	66	#elif defined(TARGET_M68K)
	67	#define QEMU_ARCH QEMU_ARCH_M68K
81ea0e13 MW	68	#elif defined(TARGET_LM32)
81ea0e13 MW	69	#define QEMU_ARCH QEMU_ARCH_LM32
ad96090a BS	70	#elif defined(TARGET_MICROBLAZE)
	71	#define QEMU_ARCH QEMU_ARCH_MICROBLAZE
	72	#elif defined(TARGET_MIPS)
	73	#define QEMU_ARCH QEMU_ARCH_MIPS
	74	#elif defined(TARGET_PPC)
	75	#define QEMU_ARCH QEMU_ARCH_PPC
	76	#elif defined(TARGET_S390X)
	77	#define QEMU_ARCH QEMU_ARCH_S390X
	78	#elif defined(TARGET_SH4)
	79	#define QEMU_ARCH QEMU_ARCH_SH4
	80	#elif defined(TARGET_SPARC)
	81	#define QEMU_ARCH QEMU_ARCH_SPARC
2328826b MF	82	#elif defined(TARGET_XTENSA)
2328826b MF	83	#define QEMU_ARCH QEMU_ARCH_XTENSA
ad96090a BS	84	#endif
	85
	86	const uint32_t arch_type = QEMU_ARCH;
	87
	88	/***********************************************************/
	89	/* ram save/restore */
	90
d20878d2 YT	91	#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
	92	#define RAM_SAVE_FLAG_COMPRESS 0x02
	93	#define RAM_SAVE_FLAG_MEM_SIZE 0x04
	94	#define RAM_SAVE_FLAG_PAGE 0x08
	95	#define RAM_SAVE_FLAG_EOS 0x10
	96	#define RAM_SAVE_FLAG_CONTINUE 0x20
ad96090a BS	97
	98	static int is_dup_page(uint8_t *page, uint8_t ch)
	99	{
	100	uint32_t val = ch << 24 \| ch << 16 \| ch << 8 \| ch;
	101	uint32_t array = (uint32_t )page;
	102	int i;
	103
	104	for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
	105	if (array[i] != val) {
	106	return 0;
	107	}
	108	}
	109
	110	return 1;
	111	}
	112
760e77ea AW	113	static RAMBlock *last_block;
	114	static ram_addr_t last_offset;
	115
ad96090a BS	116	static int ram_save_block(QEMUFile *f)
ad96090a BS	117	{
e44359c3 AW	118	RAMBlock *block = last_block;
e44359c3 AW	119	ram_addr_t offset = last_offset;
3fc250b4	120	int bytes_sent = 0;
71c510e2	121	MemoryRegion *mr;
ad96090a	122
e44359c3 AW	123	if (!block)
	124	block = QLIST_FIRST(&ram_list.blocks);
	125
e44359c3	126	do {
71c510e2 AK	127	mr = block->mr;
71c510e2 AK	128	if (memory_region_get_dirty(mr, offset, DIRTY_MEMORY_MIGRATION)) {
ad96090a	129	uint8_t *p;
a55bbe31	130	int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
ad96090a	131
71c510e2 AK	132	memory_region_reset_dirty(mr, offset, TARGET_PAGE_SIZE,
71c510e2 AK	133	DIRTY_MEMORY_MIGRATION);
ad96090a	134
71c510e2	135	p = memory_region_get_ram_ptr(mr) + offset;
ad96090a BS	136
ad96090a BS	137	if (is_dup_page(p, *p)) {
a55bbe31 AW	138	qemu_put_be64(f, offset \| cont \| RAM_SAVE_FLAG_COMPRESS);
	139	if (!cont) {
	140	qemu_put_byte(f, strlen(block->idstr));
	141	qemu_put_buffer(f, (uint8_t *)block->idstr,
	142	strlen(block->idstr));
	143	}
ad96090a	144	qemu_put_byte(f, *p);
3fc250b4	145	bytes_sent = 1;
ad96090a	146	} else {
a55bbe31 AW	147	qemu_put_be64(f, offset \| cont \| RAM_SAVE_FLAG_PAGE);
	148	if (!cont) {
	149	qemu_put_byte(f, strlen(block->idstr));
	150	qemu_put_buffer(f, (uint8_t *)block->idstr,
	151	strlen(block->idstr));
	152	}
ad96090a	153	qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
3fc250b4	154	bytes_sent = TARGET_PAGE_SIZE;
ad96090a BS	155	}
ad96090a BS	156
ad96090a BS	157	break;
ad96090a BS	158	}
e44359c3 AW	159
	160	offset += TARGET_PAGE_SIZE;
	161	if (offset >= block->length) {
	162	offset = 0;
	163	block = QLIST_NEXT(block, next);
	164	if (!block)
	165	block = QLIST_FIRST(&ram_list.blocks);
	166	}
71c510e2	167	} while (block != last_block \|\| offset != last_offset);
e44359c3 AW	168
	169	last_block = block;
	170	last_offset = offset;
ad96090a	171
3fc250b4	172	return bytes_sent;
ad96090a BS	173	}
	174
	175	static uint64_t bytes_transferred;
	176
	177	static ram_addr_t ram_save_remaining(void)
	178	{
e44359c3	179	RAMBlock *block;
ad96090a BS	180	ram_addr_t count = 0;
ad96090a BS	181
e44359c3 AW	182	QLIST_FOREACH(block, &ram_list.blocks, next) {
e44359c3 AW	183	ram_addr_t addr;
71c510e2 AK	184	for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
	185	if (memory_region_get_dirty(block->mr, addr,
	186	DIRTY_MEMORY_MIGRATION)) {
e44359c3 AW	187	count++;
e44359c3 AW	188	}
ad96090a BS	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	{
d17b5288 AW	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;
ad96090a BS	214	}
ad96090a BS	215
b2e0a138 MT	216	static int block_compar(const void a, const void b)
	217	{
	218	RAMBlock * const *ablock = a;
	219	RAMBlock * const *bblock = b;
8fec98b4 AK	220
8fec98b4 AK	221	return strcmp((ablock)->idstr, (bblock)->idstr);
b2e0a138 MT	222	}
	223
	224	static void sort_ram_list(void)
	225	{
	226	RAMBlock block, nblock, **blocks;
	227	int n;
	228	n = 0;
	229	QLIST_FOREACH(block, &ram_list.blocks, next) {
	230	++n;
	231	}
7267c094	232	blocks = g_malloc(n * sizeof *blocks);
b2e0a138 MT	233	n = 0;
	234	QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
	235	blocks[n++] = block;
	236	QLIST_REMOVE(block, next);
	237	}
	238	qsort(blocks, n, sizeof *blocks, block_compar);
	239	while (--n >= 0) {
	240	QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
	241	}
7267c094	242	g_free(blocks);
b2e0a138 MT	243	}
b2e0a138 MT	244
ad96090a BS	245	int ram_save_live(Monitor mon, QEMUFile f, int stage, void *opaque)
	246	{
	247	ram_addr_t addr;
	248	uint64_t bytes_transferred_last;
	249	double bwidth = 0;
	250	uint64_t expected_time = 0;
2975725f	251	int ret;
ad96090a BS	252
	253	if (stage < 0) {
	254	cpu_physical_memory_set_dirty_tracking(0);
	255	return 0;
	256	}
	257
86e775c6	258	memory_global_sync_dirty_bitmap(get_system_memory());
ad96090a BS	259
ad96090a BS	260	if (stage == 1) {
97ab12d4	261	RAMBlock *block;
ad96090a	262	bytes_transferred = 0;
760e77ea AW	263	last_block = NULL;
760e77ea AW	264	last_offset = 0;
b2e0a138	265	sort_ram_list();
ad96090a BS	266
ad96090a BS	267	/* Make sure all dirty bits are set */
e44359c3	268	QLIST_FOREACH(block, &ram_list.blocks, next) {
71c510e2 AK	269	for (addr = 0; addr < block->length; addr += TARGET_PAGE_SIZE) {
	270	if (!memory_region_get_dirty(block->mr, addr,
	271	DIRTY_MEMORY_MIGRATION)) {
	272	memory_region_set_dirty(block->mr, addr);
e44359c3	273	}
ad96090a BS	274	}
	275	}
	276
	277	/* Enable dirty memory tracking */
	278	cpu_physical_memory_set_dirty_tracking(1);
	279
e44359c3	280	qemu_put_be64(f, ram_bytes_total() \| RAM_SAVE_FLAG_MEM_SIZE);
97ab12d4 AW	281
	282	QLIST_FOREACH(block, &ram_list.blocks, next) {
	283	qemu_put_byte(f, strlen(block->idstr));
	284	qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
	285	qemu_put_be64(f, block->length);
	286	}
ad96090a BS	287	}
	288
	289	bytes_transferred_last = bytes_transferred;
	290	bwidth = qemu_get_clock_ns(rt_clock);
	291
2975725f	292	while ((ret = qemu_file_rate_limit(f)) == 0) {
3fc250b4	293	int bytes_sent;
ad96090a	294
3fc250b4 PR	295	bytes_sent = ram_save_block(f);
	296	bytes_transferred += bytes_sent;
	297	if (bytes_sent == 0) { /* no more blocks */
ad96090a BS	298	break;
	299	}
	300	}
	301
2975725f JQ	302	if (ret < 0) {
	303	return ret;
	304	}
	305
ad96090a BS	306	bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
	307	bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
	308
	309	/* if we haven't transferred anything this round, force expected_time to a
	310	* a very high value, but without crashing */
	311	if (bwidth == 0) {
	312	bwidth = 0.000001;
	313	}
	314
	315	/* try transferring iterative blocks of memory */
	316	if (stage == 3) {
3fc250b4 PR	317	int bytes_sent;
3fc250b4 PR	318
ad96090a	319	/* flush all remaining blocks regardless of rate limiting */
3fc250b4 PR	320	while ((bytes_sent = ram_save_block(f)) != 0) {
3fc250b4 PR	321	bytes_transferred += bytes_sent;
ad96090a BS	322	}
	323	cpu_physical_memory_set_dirty_tracking(0);
	324	}
	325
	326	qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
	327
	328	expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
	329
	330	return (stage == 2) && (expected_time <= migrate_max_downtime());
	331	}
	332
a55bbe31 AW	333	static inline void host_from_stream_offset(QEMUFile f,
	334	ram_addr_t offset,
	335	int flags)
	336	{
	337	static RAMBlock *block = NULL;
	338	char id[256];
	339	uint8_t len;
	340
	341	if (flags & RAM_SAVE_FLAG_CONTINUE) {
	342	if (!block) {
	343	fprintf(stderr, "Ack, bad migration stream!\n");
	344	return NULL;
	345	}
	346
	347	return block->host + offset;
	348	}
	349
	350	len = qemu_get_byte(f);
	351	qemu_get_buffer(f, (uint8_t *)id, len);
	352	id[len] = 0;
	353
	354	QLIST_FOREACH(block, &ram_list.blocks, next) {
	355	if (!strncmp(id, block->idstr, sizeof(id)))
	356	return block->host + offset;
	357	}
	358
	359	fprintf(stderr, "Can't find block %s!\n", id);
	360	return NULL;
	361	}
	362
ad96090a BS	363	int ram_load(QEMUFile f, void opaque, int version_id)
	364	{
	365	ram_addr_t addr;
	366	int flags;
42802d47	367	int error;
ad96090a	368
f09f2189	369	if (version_id < 4 \|\| version_id > 4) {
ad96090a BS	370	return -EINVAL;
	371	}
	372
	373	do {
	374	addr = qemu_get_be64(f);
	375
	376	flags = addr & ~TARGET_PAGE_MASK;
	377	addr &= TARGET_PAGE_MASK;
	378
	379	if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
f09f2189	380	if (version_id == 4) {
97ab12d4 AW	381	/* Synchronize RAM block list */
	382	char id[256];
	383	ram_addr_t length;
	384	ram_addr_t total_ram_bytes = addr;
	385
	386	while (total_ram_bytes) {
	387	RAMBlock *block;
	388	uint8_t len;
	389
	390	len = qemu_get_byte(f);
	391	qemu_get_buffer(f, (uint8_t *)id, len);
	392	id[len] = 0;
	393	length = qemu_get_be64(f);
	394
	395	QLIST_FOREACH(block, &ram_list.blocks, next) {
	396	if (!strncmp(id, block->idstr, sizeof(id))) {
	397	if (block->length != length)
	398	return -EINVAL;
	399	break;
	400	}
	401	}
	402
	403	if (!block) {
fb787f81 AW	404	fprintf(stderr, "Unknown ramblock \"%s\", cannot "
	405	"accept migration\n", id);
	406	return -EINVAL;
97ab12d4 AW	407	}
	408
	409	total_ram_bytes -= length;
	410	}
ad96090a BS	411	}
	412	}
	413
	414	if (flags & RAM_SAVE_FLAG_COMPRESS) {
97ab12d4 AW	415	void *host;
	416	uint8_t ch;
	417
f09f2189	418	host = host_from_stream_offset(f, addr, flags);
492fb99c MT	419	if (!host) {
	420	return -EINVAL;
	421	}
97ab12d4	422
97ab12d4 AW	423	ch = qemu_get_byte(f);
97ab12d4 AW	424	memset(host, ch, TARGET_PAGE_SIZE);
ad96090a BS	425	#ifndef _WIN32
	426	if (ch == 0 &&
	427	(!kvm_enabled() \|\| kvm_has_sync_mmu())) {
e78815a5	428	qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
ad96090a BS	429	}
	430	#endif
	431	} else if (flags & RAM_SAVE_FLAG_PAGE) {
97ab12d4 AW	432	void *host;
97ab12d4 AW	433
f09f2189	434	host = host_from_stream_offset(f, addr, flags);
97ab12d4	435
97ab12d4	436	qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
ad96090a	437	}
42802d47 JQ	438	error = qemu_file_get_error(f);
	439	if (error) {
	440	return error;
ad96090a BS	441	}
	442	} while (!(flags & RAM_SAVE_FLAG_EOS));
	443
	444	return 0;
	445	}
	446
ad96090a	447	#ifdef HAS_AUDIO
0dfa5ef9 IY	448	struct soundhw {
	449	const char *name;
	450	const char *descr;
	451	int enabled;
	452	int isa;
	453	union {
4a0f031d	454	int (init_isa) (ISABus bus);
0dfa5ef9 IY	455	int (init_pci) (PCIBus bus);
	456	} init;
	457	};
	458
	459	static struct soundhw soundhw[] = {
ad96090a BS	460	#ifdef HAS_AUDIO_CHOICE
	461	#if defined(TARGET_I386) \|\| defined(TARGET_MIPS)
	462	{
	463	"pcspk",
	464	"PC speaker",
	465	0,
	466	1,
	467	{ .init_isa = pcspk_audio_init }
	468	},
	469	#endif
	470
	471	#ifdef CONFIG_SB16
	472	{
	473	"sb16",
	474	"Creative Sound Blaster 16",
	475	0,
	476	1,
	477	{ .init_isa = SB16_init }
	478	},
	479	#endif
	480
	481	#ifdef CONFIG_CS4231A
	482	{
	483	"cs4231a",
	484	"CS4231A",
	485	0,
	486	1,
	487	{ .init_isa = cs4231a_init }
	488	},
	489	#endif
	490
	491	#ifdef CONFIG_ADLIB
	492	{
	493	"adlib",
	494	#ifdef HAS_YMF262
	495	"Yamaha YMF262 (OPL3)",
	496	#else
	497	"Yamaha YM3812 (OPL2)",
	498	#endif
	499	0,
	500	1,
	501	{ .init_isa = Adlib_init }
	502	},
	503	#endif
	504
	505	#ifdef CONFIG_GUS
	506	{
	507	"gus",
	508	"Gravis Ultrasound GF1",
	509	0,
	510	1,
	511	{ .init_isa = GUS_init }
	512	},
	513	#endif
	514
	515	#ifdef CONFIG_AC97
	516	{
	517	"ac97",
	518	"Intel 82801AA AC97 Audio",
	519	0,
	520	0,
	521	{ .init_pci = ac97_init }
	522	},
	523	#endif
524
525	#ifdef CONFIG_ES1370
526	{
527	"es1370",
528	"ENSONIQ AudioPCI ES1370",
529	0,
530	0,
531	{ .init_pci = es1370_init }
532	},
533	#endif
534
d61a4ce8 GH	535	#ifdef CONFIG_HDA
	536	{
	537	"hda",
	538	"Intel HD Audio",
	539	0,
	540	0,
	541	{ .init_pci = intel_hda_and_codec_init }
	542	},
	543	#endif
	544
ad96090a BS	545	#endif /* HAS_AUDIO_CHOICE */
	546
	547	{ NULL, NULL, 0, 0, { NULL } }
	548	};
	549
	550	void select_soundhw(const char *optarg)
	551	{
	552	struct soundhw *c;
	553
	554	if (*optarg == '?') {
	555	show_valid_cards:
	556
	557	printf("Valid sound card names (comma separated):\n");
	558	for (c = soundhw; c->name; ++c) {
	559	printf ("%-11s %s\n", c->name, c->descr);
	560	}
	561	printf("\n-soundhw all will enable all of the above\n");
	562	exit(*optarg != '?');
	563	}
	564	else {
	565	size_t l;
	566	const char *p;
	567	char *e;
	568	int bad_card = 0;
	569
	570	if (!strcmp(optarg, "all")) {
	571	for (c = soundhw; c->name; ++c) {
	572	c->enabled = 1;
	573	}
	574	return;
	575	}
	576
	577	p = optarg;
	578	while (*p) {
	579	e = strchr(p, ',');
	580	l = !e ? strlen(p) : (size_t) (e - p);
	581
	582	for (c = soundhw; c->name; ++c) {
	583	if (!strncmp(c->name, p, l) && !c->name[l]) {
	584	c->enabled = 1;
	585	break;
	586	}
	587	}
	588
	589	if (!c->name) {
	590	if (l > 80) {
	591	fprintf(stderr,
	592	"Unknown sound card name (too big to show)\n");
	593	}
	594	else {
	595	fprintf(stderr, "Unknown sound card name `%.*s'\n",
	596	(int) l, p);
	597	}
	598	bad_card = 1;
	599	}
	600	p += l + (e != NULL);
	601	}
	602
	603	if (bad_card) {
	604	goto show_valid_cards;
	605	}
	606	}
	607	}
0dfa5ef9	608
4a0f031d	609	void audio_init(ISABus isa_bus, PCIBus pci_bus)
0dfa5ef9 IY	610	{
	611	struct soundhw *c;
	612
	613	for (c = soundhw; c->name; ++c) {
	614	if (c->enabled) {
	615	if (c->isa) {
4a0f031d HP	616	if (isa_bus) {
4a0f031d HP	617	c->init.init_isa(isa_bus);
0dfa5ef9 IY	618	}
	619	} else {
	620	if (pci_bus) {
	621	c->init.init_pci(pci_bus);
	622	}
	623	}
	624	}
	625	}
	626	}
ad96090a BS	627	#else
	628	void select_soundhw(const char *optarg)
	629	{
	630	}
4a0f031d	631	void audio_init(ISABus isa_bus, PCIBus pci_bus)
0dfa5ef9 IY	632	{
0dfa5ef9 IY	633	}
ad96090a BS	634	#endif
	635
	636	int qemu_uuid_parse(const char str, uint8_t uuid)
	637	{
	638	int ret;
	639
	640	if (strlen(str) != 36) {
	641	return -1;
	642	}
	643
	644	ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
	645	&uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
	646	&uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
	647	&uuid[15]);
	648
	649	if (ret != 16) {
	650	return -1;
	651	}
	652	#ifdef TARGET_I386
	653	smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
	654	#endif
	655	return 0;
	656	}
	657
	658	void do_acpitable_option(const char *optarg)
	659	{
	660	#ifdef TARGET_I386
	661	if (acpi_table_add(optarg) < 0) {
	662	fprintf(stderr, "Wrong acpi table provided\n");
	663	exit(1);
	664	}
	665	#endif
	666	}
	667
	668	void do_smbios_option(const char *optarg)
	669	{
	670	#ifdef TARGET_I386
	671	if (smbios_entry_add(optarg) < 0) {
	672	fprintf(stderr, "Wrong smbios provided\n");
	673	exit(1);
	674	}
	675	#endif
	676	}
	677
	678	void cpudef_init(void)
	679	{
	680	#if defined(cpudef_setup)
	681	cpudef_setup(); /* parse cpu definitions in target config file */
	682	#endif
	683	}
	684
	685	int audio_available(void)
	686	{
	687	#ifdef HAS_AUDIO
	688	return 1;
	689	#else
	690	return 0;
	691	#endif
	692	}
	693
303d4e86 AP	694	int tcg_available(void)
	695	{
	696	return 1;
	697	}
	698
ad96090a BS	699	int kvm_available(void)
	700	{
	701	#ifdef CONFIG_KVM
	702	return 1;
	703	#else
	704	return 0;
	705	#endif
	706	}
	707
	708	int xen_available(void)
	709	{
	710	#ifdef CONFIG_XEN
	711	return 1;
	712	#else
	713	return 0;
	714	#endif
	715	}