[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"

#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
#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;
    ram_addr_t current_addr;
    int bytes_sent = 0;

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

    current_addr = block->offset + offset;

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

            cpu_physical_memory_reset_dirty(current_addr,
                                            current_addr + TARGET_PAGE_SIZE,
                                            MIGRATION_DIRTY_FLAG);

            p = block->host + 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);
        }

        current_addr = block->offset + offset;

    } while (current_addr != 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 = block->offset; addr < block->offset + block->length;
             addr += TARGET_PAGE_SIZE) {
            if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
                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;
    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;
    }
    blocks = qemu_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);
    }
    qemu_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;

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

    if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
        qemu_file_set_error(f);
        return 0;
    }

    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 = 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);
                }
            }
        }

        /* 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 (!qemu_file_rate_limit(f)) {
        int bytes_sent;

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

    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;

    if (version_id < 3 || 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 == 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) {
                        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;

            if (version_id == 3)
                host = qemu_get_ram_ptr(addr);
            else
                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;

            if (version_id == 3)
                host = qemu_get_ram_ptr(addr);
            else
                host = host_from_stream_offset(f, addr, flags);

            qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
        }
        if (qemu_file_has_error(f)) {
            return -EIO;
        }
    } while (!(flags & RAM_SAVE_FLAG_EOS));

    return 0;
}

void qemu_service_io(void)
{
    qemu_notify_event();
}

#ifdef HAS_AUDIO
struct soundhw {
    const char *name;
    const char *descr;
    int enabled;
    int isa;
    union {
        int (*init_isa) (qemu_irq *pic);
        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(qemu_irq *isa_pic, PCIBus *pci_bus)
{
    struct soundhw *c;

    for (c = soundhw; c->name; ++c) {
        if (c->enabled) {
            if (c->isa) {
                if (isa_pic) {
                    c->init.init_isa(isa_pic);
                }
            } else {
                if (pci_bus) {
                    c->init.init_pci(pci_bus);
                }
            }
        }
    }
}
#else
void select_soundhw(const char *optarg)
{
}
void audio_init(qemu_irq *isa_pic, 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"
	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
81ea0e13 MW	67	#elif defined(TARGET_LM32)
81ea0e13 MW	68	#define QEMU_ARCH QEMU_ARCH_LM32
ad96090a BS	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	#endif
	82
	83	const uint32_t arch_type = QEMU_ARCH;
	84
	85	/***********************************************************/
	86	/* ram save/restore */
	87
d20878d2 YT	88	#define RAM_SAVE_FLAG_FULL 0x01 /* Obsolete, not used anymore */
	89	#define RAM_SAVE_FLAG_COMPRESS 0x02
	90	#define RAM_SAVE_FLAG_MEM_SIZE 0x04
	91	#define RAM_SAVE_FLAG_PAGE 0x08
	92	#define RAM_SAVE_FLAG_EOS 0x10
	93	#define RAM_SAVE_FLAG_CONTINUE 0x20
ad96090a BS	94
	95	static int is_dup_page(uint8_t *page, uint8_t ch)
	96	{
	97	uint32_t val = ch << 24 \| ch << 16 \| ch << 8 \| ch;
	98	uint32_t array = (uint32_t )page;
	99	int i;
	100
	101	for (i = 0; i < (TARGET_PAGE_SIZE / 4); i++) {
	102	if (array[i] != val) {
	103	return 0;
	104	}
	105	}
	106
	107	return 1;
	108	}
	109
760e77ea AW	110	static RAMBlock *last_block;
	111	static ram_addr_t last_offset;
	112
ad96090a BS	113	static int ram_save_block(QEMUFile *f)
ad96090a BS	114	{
e44359c3 AW	115	RAMBlock *block = last_block;
	116	ram_addr_t offset = last_offset;
	117	ram_addr_t current_addr;
3fc250b4	118	int bytes_sent = 0;
ad96090a	119
e44359c3 AW	120	if (!block)
	121	block = QLIST_FIRST(&ram_list.blocks);
	122
	123	current_addr = block->offset + offset;
	124
	125	do {
ad96090a BS	126	if (cpu_physical_memory_get_dirty(current_addr, MIGRATION_DIRTY_FLAG)) {
ad96090a BS	127	uint8_t *p;
a55bbe31	128	int cont = (block == last_block) ? RAM_SAVE_FLAG_CONTINUE : 0;
ad96090a BS	129
	130	cpu_physical_memory_reset_dirty(current_addr,
	131	current_addr + TARGET_PAGE_SIZE,
	132	MIGRATION_DIRTY_FLAG);
	133
97ab12d4	134	p = block->host + offset;
ad96090a BS	135
ad96090a BS	136	if (is_dup_page(p, *p)) {
a55bbe31 AW	137	qemu_put_be64(f, offset \| cont \| RAM_SAVE_FLAG_COMPRESS);
	138	if (!cont) {
	139	qemu_put_byte(f, strlen(block->idstr));
	140	qemu_put_buffer(f, (uint8_t *)block->idstr,
	141	strlen(block->idstr));
	142	}
ad96090a	143	qemu_put_byte(f, *p);
3fc250b4	144	bytes_sent = 1;
ad96090a	145	} else {
a55bbe31 AW	146	qemu_put_be64(f, offset \| cont \| RAM_SAVE_FLAG_PAGE);
	147	if (!cont) {
	148	qemu_put_byte(f, strlen(block->idstr));
	149	qemu_put_buffer(f, (uint8_t *)block->idstr,
	150	strlen(block->idstr));
	151	}
ad96090a	152	qemu_put_buffer(f, p, TARGET_PAGE_SIZE);
3fc250b4	153	bytes_sent = TARGET_PAGE_SIZE;
ad96090a BS	154	}
ad96090a BS	155
ad96090a BS	156	break;
ad96090a BS	157	}
e44359c3 AW	158
	159	offset += TARGET_PAGE_SIZE;
	160	if (offset >= block->length) {
	161	offset = 0;
	162	block = QLIST_NEXT(block, next);
	163	if (!block)
	164	block = QLIST_FIRST(&ram_list.blocks);
	165	}
	166
	167	current_addr = block->offset + offset;
	168
	169	} while (current_addr != last_block->offset + last_offset);
	170
	171	last_block = block;
	172	last_offset = offset;
ad96090a	173
3fc250b4	174	return bytes_sent;
ad96090a BS	175	}
	176
	177	static uint64_t bytes_transferred;
	178
	179	static ram_addr_t ram_save_remaining(void)
	180	{
e44359c3	181	RAMBlock *block;
ad96090a BS	182	ram_addr_t count = 0;
ad96090a BS	183
e44359c3 AW	184	QLIST_FOREACH(block, &ram_list.blocks, next) {
	185	ram_addr_t addr;
	186	for (addr = block->offset; addr < block->offset + block->length;
	187	addr += TARGET_PAGE_SIZE) {
	188	if (cpu_physical_memory_get_dirty(addr, MIGRATION_DIRTY_FLAG)) {
	189	count++;
	190	}
ad96090a BS	191	}
	192	}
	193
	194	return count;
	195	}
	196
	197	uint64_t ram_bytes_remaining(void)
	198	{
	199	return ram_save_remaining() * TARGET_PAGE_SIZE;
	200	}
	201
	202	uint64_t ram_bytes_transferred(void)
	203	{
	204	return bytes_transferred;
	205	}
	206
	207	uint64_t ram_bytes_total(void)
	208	{
d17b5288 AW	209	RAMBlock *block;
	210	uint64_t total = 0;
	211
	212	QLIST_FOREACH(block, &ram_list.blocks, next)
	213	total += block->length;
	214
	215	return total;
ad96090a BS	216	}
ad96090a BS	217
b2e0a138 MT	218	static int block_compar(const void a, const void b)
	219	{
	220	RAMBlock * const *ablock = a;
	221	RAMBlock * const *bblock = b;
	222	if ((ablock)->offset < (bblock)->offset) {
	223	return -1;
	224	} else if ((ablock)->offset > (bblock)->offset) {
	225	return 1;
	226	}
	227	return 0;
	228	}
	229
	230	static void sort_ram_list(void)
	231	{
	232	RAMBlock block, nblock, **blocks;
	233	int n;
	234	n = 0;
	235	QLIST_FOREACH(block, &ram_list.blocks, next) {
	236	++n;
	237	}
	238	blocks = qemu_malloc(n * sizeof *blocks);
	239	n = 0;
	240	QLIST_FOREACH_SAFE(block, &ram_list.blocks, next, nblock) {
	241	blocks[n++] = block;
	242	QLIST_REMOVE(block, next);
	243	}
	244	qsort(blocks, n, sizeof *blocks, block_compar);
	245	while (--n >= 0) {
	246	QLIST_INSERT_HEAD(&ram_list.blocks, blocks[n], next);
	247	}
	248	qemu_free(blocks);
	249	}
	250
ad96090a BS	251	int ram_save_live(Monitor mon, QEMUFile f, int stage, void *opaque)
	252	{
	253	ram_addr_t addr;
	254	uint64_t bytes_transferred_last;
	255	double bwidth = 0;
	256	uint64_t expected_time = 0;
	257
	258	if (stage < 0) {
	259	cpu_physical_memory_set_dirty_tracking(0);
	260	return 0;
	261	}
	262
	263	if (cpu_physical_sync_dirty_bitmap(0, TARGET_PHYS_ADDR_MAX) != 0) {
	264	qemu_file_set_error(f);
	265	return 0;
	266	}
	267
	268	if (stage == 1) {
97ab12d4	269	RAMBlock *block;
ad96090a	270	bytes_transferred = 0;
760e77ea AW	271	last_block = NULL;
760e77ea AW	272	last_offset = 0;
b2e0a138	273	sort_ram_list();
ad96090a BS	274
ad96090a BS	275	/* Make sure all dirty bits are set */
e44359c3 AW	276	QLIST_FOREACH(block, &ram_list.blocks, next) {
	277	for (addr = block->offset; addr < block->offset + block->length;
	278	addr += TARGET_PAGE_SIZE) {
	279	if (!cpu_physical_memory_get_dirty(addr,
	280	MIGRATION_DIRTY_FLAG)) {
	281	cpu_physical_memory_set_dirty(addr);
	282	}
ad96090a BS	283	}
	284	}
	285
	286	/* Enable dirty memory tracking */
	287	cpu_physical_memory_set_dirty_tracking(1);
	288
e44359c3	289	qemu_put_be64(f, ram_bytes_total() \| RAM_SAVE_FLAG_MEM_SIZE);
97ab12d4 AW	290
	291	QLIST_FOREACH(block, &ram_list.blocks, next) {
	292	qemu_put_byte(f, strlen(block->idstr));
	293	qemu_put_buffer(f, (uint8_t *)block->idstr, strlen(block->idstr));
	294	qemu_put_be64(f, block->length);
	295	}
ad96090a BS	296	}
	297
	298	bytes_transferred_last = bytes_transferred;
	299	bwidth = qemu_get_clock_ns(rt_clock);
	300
	301	while (!qemu_file_rate_limit(f)) {
3fc250b4	302	int bytes_sent;
ad96090a	303
3fc250b4 PR	304	bytes_sent = ram_save_block(f);
	305	bytes_transferred += bytes_sent;
	306	if (bytes_sent == 0) { /* no more blocks */
ad96090a BS	307	break;
	308	}
	309	}
	310
	311	bwidth = qemu_get_clock_ns(rt_clock) - bwidth;
	312	bwidth = (bytes_transferred - bytes_transferred_last) / bwidth;
	313
	314	/* if we haven't transferred anything this round, force expected_time to a
	315	* a very high value, but without crashing */
	316	if (bwidth == 0) {
	317	bwidth = 0.000001;
	318	}
	319
	320	/* try transferring iterative blocks of memory */
	321	if (stage == 3) {
3fc250b4 PR	322	int bytes_sent;
3fc250b4 PR	323
ad96090a	324	/* flush all remaining blocks regardless of rate limiting */
3fc250b4 PR	325	while ((bytes_sent = ram_save_block(f)) != 0) {
3fc250b4 PR	326	bytes_transferred += bytes_sent;
ad96090a BS	327	}
	328	cpu_physical_memory_set_dirty_tracking(0);
	329	}
	330
	331	qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
	332
	333	expected_time = ram_save_remaining() * TARGET_PAGE_SIZE / bwidth;
	334
	335	return (stage == 2) && (expected_time <= migrate_max_downtime());
	336	}
	337
a55bbe31 AW	338	static inline void host_from_stream_offset(QEMUFile f,
	339	ram_addr_t offset,
	340	int flags)
	341	{
	342	static RAMBlock *block = NULL;
	343	char id[256];
	344	uint8_t len;
	345
	346	if (flags & RAM_SAVE_FLAG_CONTINUE) {
	347	if (!block) {
	348	fprintf(stderr, "Ack, bad migration stream!\n");
	349	return NULL;
	350	}
	351
	352	return block->host + offset;
	353	}
	354
	355	len = qemu_get_byte(f);
	356	qemu_get_buffer(f, (uint8_t *)id, len);
	357	id[len] = 0;
	358
	359	QLIST_FOREACH(block, &ram_list.blocks, next) {
	360	if (!strncmp(id, block->idstr, sizeof(id)))
	361	return block->host + offset;
	362	}
	363
	364	fprintf(stderr, "Can't find block %s!\n", id);
	365	return NULL;
	366	}
	367
ad96090a BS	368	int ram_load(QEMUFile f, void opaque, int version_id)
	369	{
	370	ram_addr_t addr;
	371	int flags;
	372
97ab12d4	373	if (version_id < 3 \|\| version_id > 4) {
ad96090a BS	374	return -EINVAL;
	375	}
	376
	377	do {
	378	addr = qemu_get_be64(f);
	379
	380	flags = addr & ~TARGET_PAGE_MASK;
	381	addr &= TARGET_PAGE_MASK;
	382
	383	if (flags & RAM_SAVE_FLAG_MEM_SIZE) {
97ab12d4 AW	384	if (version_id == 3) {
	385	if (addr != ram_bytes_total()) {
	386	return -EINVAL;
	387	}
	388	} else {
	389	/* Synchronize RAM block list */
	390	char id[256];
	391	ram_addr_t length;
	392	ram_addr_t total_ram_bytes = addr;
	393
	394	while (total_ram_bytes) {
	395	RAMBlock *block;
	396	uint8_t len;
	397
	398	len = qemu_get_byte(f);
	399	qemu_get_buffer(f, (uint8_t *)id, len);
	400	id[len] = 0;
	401	length = qemu_get_be64(f);
	402
	403	QLIST_FOREACH(block, &ram_list.blocks, next) {
	404	if (!strncmp(id, block->idstr, sizeof(id))) {
	405	if (block->length != length)
	406	return -EINVAL;
	407	break;
	408	}
	409	}
	410
	411	if (!block) {
fb787f81 AW	412	fprintf(stderr, "Unknown ramblock \"%s\", cannot "
	413	"accept migration\n", id);
	414	return -EINVAL;
97ab12d4 AW	415	}
	416
	417	total_ram_bytes -= length;
	418	}
ad96090a BS	419	}
	420	}
	421
	422	if (flags & RAM_SAVE_FLAG_COMPRESS) {
97ab12d4 AW	423	void *host;
	424	uint8_t ch;
	425
a55bbe31	426	if (version_id == 3)
97ab12d4	427	host = qemu_get_ram_ptr(addr);
a55bbe31 AW	428	else
a55bbe31 AW	429	host = host_from_stream_offset(f, addr, flags);
492fb99c MT	430	if (!host) {
	431	return -EINVAL;
	432	}
97ab12d4	433
97ab12d4 AW	434	ch = qemu_get_byte(f);
97ab12d4 AW	435	memset(host, ch, TARGET_PAGE_SIZE);
ad96090a BS	436	#ifndef _WIN32
	437	if (ch == 0 &&
	438	(!kvm_enabled() \|\| kvm_has_sync_mmu())) {
e78815a5	439	qemu_madvise(host, TARGET_PAGE_SIZE, QEMU_MADV_DONTNEED);
ad96090a BS	440	}
	441	#endif
	442	} else if (flags & RAM_SAVE_FLAG_PAGE) {
97ab12d4 AW	443	void *host;
97ab12d4 AW	444
a55bbe31	445	if (version_id == 3)
97ab12d4	446	host = qemu_get_ram_ptr(addr);
a55bbe31 AW	447	else
a55bbe31 AW	448	host = host_from_stream_offset(f, addr, flags);
97ab12d4	449
97ab12d4	450	qemu_get_buffer(f, host, TARGET_PAGE_SIZE);
ad96090a BS	451	}
	452	if (qemu_file_has_error(f)) {
	453	return -EIO;
	454	}
	455	} while (!(flags & RAM_SAVE_FLAG_EOS));
	456
	457	return 0;
	458	}
	459
	460	void qemu_service_io(void)
	461	{
	462	qemu_notify_event();
	463	}
	464
	465	#ifdef HAS_AUDIO
0dfa5ef9 IY	466	struct soundhw {
	467	const char *name;
	468	const char *descr;
	469	int enabled;
	470	int isa;
	471	union {
	472	int (init_isa) (qemu_irq pic);
	473	int (init_pci) (PCIBus bus);
	474	} init;
	475	};
	476
	477	static struct soundhw soundhw[] = {
ad96090a BS	478	#ifdef HAS_AUDIO_CHOICE
	479	#if defined(TARGET_I386) \|\| defined(TARGET_MIPS)
	480	{
	481	"pcspk",
	482	"PC speaker",
	483	0,
	484	1,
	485	{ .init_isa = pcspk_audio_init }
	486	},
	487	#endif
	488
	489	#ifdef CONFIG_SB16
	490	{
	491	"sb16",
	492	"Creative Sound Blaster 16",
	493	0,
	494	1,
	495	{ .init_isa = SB16_init }
	496	},
	497	#endif
	498
	499	#ifdef CONFIG_CS4231A
	500	{
	501	"cs4231a",
	502	"CS4231A",
	503	0,
	504	1,
	505	{ .init_isa = cs4231a_init }
	506	},
	507	#endif
	508
	509	#ifdef CONFIG_ADLIB
	510	{
	511	"adlib",
	512	#ifdef HAS_YMF262
	513	"Yamaha YMF262 (OPL3)",
	514	#else
	515	"Yamaha YM3812 (OPL2)",
	516	#endif
	517	0,
	518	1,
	519	{ .init_isa = Adlib_init }
	520	},
	521	#endif
	522
	523	#ifdef CONFIG_GUS
	524	{
	525	"gus",
	526	"Gravis Ultrasound GF1",
	527	0,
	528	1,
	529	{ .init_isa = GUS_init }
	530	},
	531	#endif
	532
	533	#ifdef CONFIG_AC97
	534	{
	535	"ac97",
	536	"Intel 82801AA AC97 Audio",
	537	0,
	538	0,
	539	{ .init_pci = ac97_init }
	540	},
	541	#endif
542
543	#ifdef CONFIG_ES1370
544	{
545	"es1370",
546	"ENSONIQ AudioPCI ES1370",
547	0,
548	0,
549	{ .init_pci = es1370_init }
550	},
551	#endif
552
d61a4ce8 GH	553	#ifdef CONFIG_HDA
	554	{
	555	"hda",
	556	"Intel HD Audio",
	557	0,
	558	0,
	559	{ .init_pci = intel_hda_and_codec_init }
	560	},
	561	#endif
	562
ad96090a BS	563	#endif /* HAS_AUDIO_CHOICE */
	564
	565	{ NULL, NULL, 0, 0, { NULL } }
	566	};
	567
	568	void select_soundhw(const char *optarg)
	569	{
	570	struct soundhw *c;
	571
	572	if (*optarg == '?') {
	573	show_valid_cards:
	574
	575	printf("Valid sound card names (comma separated):\n");
	576	for (c = soundhw; c->name; ++c) {
	577	printf ("%-11s %s\n", c->name, c->descr);
	578	}
	579	printf("\n-soundhw all will enable all of the above\n");
	580	exit(*optarg != '?');
	581	}
	582	else {
	583	size_t l;
	584	const char *p;
	585	char *e;
	586	int bad_card = 0;
	587
	588	if (!strcmp(optarg, "all")) {
	589	for (c = soundhw; c->name; ++c) {
	590	c->enabled = 1;
	591	}
	592	return;
	593	}
	594
	595	p = optarg;
	596	while (*p) {
	597	e = strchr(p, ',');
	598	l = !e ? strlen(p) : (size_t) (e - p);
	599
	600	for (c = soundhw; c->name; ++c) {
	601	if (!strncmp(c->name, p, l) && !c->name[l]) {
	602	c->enabled = 1;
	603	break;
	604	}
	605	}
	606
	607	if (!c->name) {
	608	if (l > 80) {
	609	fprintf(stderr,
	610	"Unknown sound card name (too big to show)\n");
	611	}
	612	else {
	613	fprintf(stderr, "Unknown sound card name `%.*s'\n",
	614	(int) l, p);
	615	}
	616	bad_card = 1;
	617	}
	618	p += l + (e != NULL);
	619	}
	620
	621	if (bad_card) {
	622	goto show_valid_cards;
	623	}
	624	}
	625	}
0dfa5ef9 IY	626
	627	void audio_init(qemu_irq isa_pic, PCIBus pci_bus)
	628	{
	629	struct soundhw *c;
	630
	631	for (c = soundhw; c->name; ++c) {
	632	if (c->enabled) {
	633	if (c->isa) {
	634	if (isa_pic) {
	635	c->init.init_isa(isa_pic);
	636	}
	637	} else {
	638	if (pci_bus) {
	639	c->init.init_pci(pci_bus);
	640	}
	641	}
	642	}
	643	}
	644	}
ad96090a BS	645	#else
	646	void select_soundhw(const char *optarg)
	647	{
	648	}
0dfa5ef9 IY	649	void audio_init(qemu_irq isa_pic, PCIBus pci_bus)
	650	{
	651	}
ad96090a BS	652	#endif
	653
	654	int qemu_uuid_parse(const char str, uint8_t uuid)
	655	{
	656	int ret;
	657
	658	if (strlen(str) != 36) {
	659	return -1;
	660	}
	661
	662	ret = sscanf(str, UUID_FMT, &uuid[0], &uuid[1], &uuid[2], &uuid[3],
	663	&uuid[4], &uuid[5], &uuid[6], &uuid[7], &uuid[8], &uuid[9],
	664	&uuid[10], &uuid[11], &uuid[12], &uuid[13], &uuid[14],
	665	&uuid[15]);
	666
	667	if (ret != 16) {
	668	return -1;
	669	}
	670	#ifdef TARGET_I386
	671	smbios_add_field(1, offsetof(struct smbios_type_1, uuid), 16, uuid);
	672	#endif
	673	return 0;
	674	}
	675
	676	void do_acpitable_option(const char *optarg)
	677	{
	678	#ifdef TARGET_I386
	679	if (acpi_table_add(optarg) < 0) {
	680	fprintf(stderr, "Wrong acpi table provided\n");
	681	exit(1);
	682	}
	683	#endif
	684	}
	685
	686	void do_smbios_option(const char *optarg)
	687	{
	688	#ifdef TARGET_I386
	689	if (smbios_entry_add(optarg) < 0) {
	690	fprintf(stderr, "Wrong smbios provided\n");
	691	exit(1);
	692	}
	693	#endif
	694	}
	695
	696	void cpudef_init(void)
	697	{
	698	#if defined(cpudef_setup)
	699	cpudef_setup(); /* parse cpu definitions in target config file */
	700	#endif
	701	}
	702
	703	int audio_available(void)
	704	{
	705	#ifdef HAS_AUDIO
	706	return 1;
	707	#else
	708	return 0;
	709	#endif
	710	}
	711
303d4e86 AP	712	int tcg_available(void)
	713	{
	714	return 1;
	715	}
	716
ad96090a BS	717	int kvm_available(void)
	718	{
	719	#ifdef CONFIG_KVM
	720	return 1;
	721	#else
	722	return 0;
	723	#endif
	724	}
	725
	726	int xen_available(void)
	727	{
	728	#ifdef CONFIG_XEN
	729	return 1;
	730	#else
	731	return 0;
	732	#endif
	733	}