smbios.c

xen 3.2.2 源码

    p->header.type = 0;
    p->header.length = sizeof(struct smbios_type_0);
    p->header.handle = 0;
    
    p->vendor_str = 1;
    p->version_str = 2;
    p->starting_address_segment = 0xe800;
    p->release_date_str = 0;
    p->rom_size = 0;
    
    memset(p->characteristics, 0, 8);
    p->characteristics[7] = 0x08; /* BIOS characteristics not supported */
    p->characteristics_extension_bytes[0] = 0;
    p->characteristics_extension_bytes[1] = 0;
    
    p->major_release = (uint8_t) xen_major_version;
    p->minor_release = (uint8_t) xen_minor_version;
    p->embedded_controller_major = 0xff;
    p->embedded_controller_minor = 0xff;

    start += sizeof(struct smbios_type_0);
    strcpy((char *)start, "Xen");
    start += strlen("Xen") + 1;
    strcpy((char *)start, xen_version);
    start += strlen(xen_version) + 1;

    *((uint8_t *)start) = 0;
    return start + 1;
}

/* Type 1 -- System Information */
static void *
smbios_type_1_init(void *start, const char *xen_version, 
                   uint8_t uuid[16])
{
    char uuid_str[37];
    struct smbios_type_1 *p = (struct smbios_type_1 *)start;
    p->header.type = 1;
    p->header.length = sizeof(struct smbios_type_1);
    p->header.handle = 0x100;

    p->manufacturer_str = 1;
    p->product_name_str = 2;
    p->version_str = 3;
    p->serial_number_str = 4;
    
    memcpy(p->uuid, uuid, 16);

    p->wake_up_type = 0x06; /* power switch */
    p->sku_str = 0;
    p->family_str = 0;

    start += sizeof(struct smbios_type_1);
    
    strcpy((char *)start, "Xen");
    start += strlen("Xen") + 1;
    strcpy((char *)start, "HVM domU");
    start += strlen("HVM domU") + 1;
    strcpy((char *)start, xen_version);
    start += strlen(xen_version) + 1;
    uuid_to_string(uuid_str, uuid); 
    strcpy((char *)start, uuid_str);
    start += strlen(uuid_str) + 1;
    *((uint8_t *)start) = 0;
    
    return start+1; 
}

/* Type 3 -- System Enclosure */
static void *
smbios_type_3_init(void *start)
{
    struct smbios_type_3 *p = (struct smbios_type_3 *)start;
    
    p->header.type = 3;
    p->header.length = sizeof(struct smbios_type_3);
    p->header.handle = 0x300;

    p->manufacturer_str = 1;
    p->type = 0x01; /* other */
    p->version_str = 0;
    p->serial_number_str = 0;
    p->asset_tag_str = 0;
    p->boot_up_state = 0x03; /* safe */
    p->power_supply_state = 0x03; /* safe */
    p->thermal_state = 0x03; /* safe */
    p->security_status = 0x02; /* unknown */

    start += sizeof(struct smbios_type_3);
    
    strcpy((char *)start, "Xen");
    start += strlen("Xen") + 1;
    *((uint8_t *)start) = 0;
    return start+1;
}

/* Type 4 -- Processor Information */
static void *
smbios_type_4_init(void *start, unsigned int cpu_number, char *cpu_manufacturer)
{
    char buf[80]; 
    struct smbios_type_4 *p = (struct smbios_type_4 *)start;
    uint32_t eax, ebx, ecx, edx;

    p->header.type = 4;
    p->header.length = sizeof(struct smbios_type_4);
    p->header.handle = 0x400 + cpu_number;

    p->socket_designation_str = 1;
    p->processor_type = 0x03; /* CPU */
    p->processor_family = 0x01; /* other */
    p->manufacturer_str = 2;

    cpuid(1, &eax, &ebx, &ecx, &edx);

    p->cpuid[0] = eax;
    p->cpuid[1] = edx;

    p->version_str = 0;
    p->voltage = 0;
    p->external_clock = 0;

    p->max_speed = 0; /* unknown */
    p->current_speed = 0; /* unknown */

    p->status = 0x41; /* socket populated, CPU enabled */
    p->upgrade = 0x01; /* other */

    start += sizeof(struct smbios_type_4);

    strncpy(buf, "CPU ", sizeof(buf));
    if ( (sizeof(buf) - strlen("CPU ")) >= 3 )
        itoa(buf + strlen("CPU "), cpu_number);

    strcpy((char *)start, buf);
    start += strlen(buf) + 1;

    strcpy((char *)start, cpu_manufacturer);
    start += strlen(cpu_manufacturer) + 1;

    *((uint8_t *)start) = 0;
    return start+1;
}

/* Type 16 -- Physical Memory Array */
static void *
smbios_type_16_init(void *start, uint32_t memsize)
{
    struct smbios_type_16 *p = (struct smbios_type_16*)start;

    p->header.type = 16;
    p->header.handle = 0x1000;
    p->header.length = sizeof(struct smbios_type_16);
    
    p->location = 0x01; /* other */
    p->use = 0x03; /* system memory */
    p->error_correction = 0x01; /* other */
    p->maximum_capacity = memsize * 1024;
    p->memory_error_information_handle = 0xfffe; /* none provided */
    p->number_of_memory_devices = 1;

    start += sizeof(struct smbios_type_16);
    *((uint16_t *)start) = 0;
    return start + 2;
}

/* Type 17 -- Memory Device */
static void *
smbios_type_17_init(void *start, uint32_t memory_size_mb)
{
    struct smbios_type_17 *p = (struct smbios_type_17 *)start;
    
    p->header.type = 17;
    p->header.length = sizeof(struct smbios_type_17);
    p->header.handle = 0x1100;

    p->physical_memory_array_handle = 0x1000;
    p->total_width = 64;
    p->data_width = 64;
    /* truncate memory_size_mb to 16 bits and clear most significant
       bit [indicates size in MB] */
    p->size = (uint16_t) memory_size_mb & 0x7fff;
    p->form_factor = 0x09; /* DIMM */
    p->device_set = 0;
    p->device_locator_str = 1;
    p->bank_locator_str = 0;
    p->memory_type = 0x07; /* RAM */
    p->type_detail = 0;

    start += sizeof(struct smbios_type_17);
    strcpy((char *)start, "DIMM 1");
    start += strlen("DIMM 1") + 1;
    *((uint8_t *)start) = 0;

    return start+1;
}

/* Type 19 -- Memory Array Mapped Address */
static void *
smbios_type_19_init(void *start, uint32_t memory_size_mb)
{
    struct smbios_type_19 *p = (struct smbios_type_19 *)start;
    
    p->header.type = 19;
    p->header.length = sizeof(struct smbios_type_19);
    p->header.handle = 0x1300;

    p->starting_address = 0;
    p->ending_address = (memory_size_mb-1) * 1024;
    p->memory_array_handle = 0x1000;
    p->partition_width = 1;

    start += sizeof(struct smbios_type_19);
    *((uint16_t *)start) = 0;
    return start + 2;
}

/* Type 20 -- Memory Device Mapped Address */
static void *
smbios_type_20_init(void *start, uint32_t memory_size_mb)
{
    struct smbios_type_20 *p = (struct smbios_type_20 *)start;

    p->header.type = 20;
    p->header.length = sizeof(struct smbios_type_20);
    p->header.handle = 0x1400;

    p->starting_address = 0;
    p->ending_address = (memory_size_mb-1)*1024;
    p->memory_device_handle = 0x1100;
    p->memory_array_mapped_address_handle = 0x1300;
    p->partition_row_position = 1;
    p->interleave_position = 0;
    p->interleaved_data_depth = 0;

    start += sizeof(struct smbios_type_20);

    *((uint16_t *)start) = 0;
    return start+2;
}

/* Type 32 -- System Boot Information */
static void *
smbios_type_32_init(void *start)
{
    struct smbios_type_32 *p = (struct smbios_type_32 *)start;

    p->header.type = 32;
    p->header.length = sizeof(struct smbios_type_32);
    p->header.handle = 0x2000;
    memset(p->reserved, 0, 6);
    p->boot_status = 0; /* no errors detected */
    
    start += sizeof(struct smbios_type_32);
    *((uint16_t *)start) = 0;
    return start+2;
}

/* Type 127 -- End of Table */
static void *
smbios_type_127_init(void *start)
{
    struct smbios_type_127 *p = (struct smbios_type_127 *)start;

    p->header.type = 127;
    p->header.length = sizeof(struct smbios_type_127);
    p->header.handle = 0x7f00;

    start += sizeof(struct smbios_type_127);
    *((uint16_t *)start) = 0;
    return start + 2;
}

/*
 * Local variables:
 * mode: C
 * c-set-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */