start_kernel part III

Continue setup_arch of x86 architecture.

early_ioremap_init initialize early ioremap for early initialization code before normal mapping functions are ready.

transfer fixed bitmap physical address to virtual address and put it into slot_virt, the result of slot_virt after this procedure completed: {0xffd00000, 0xffd40000, 0xffd80000, 0xffdc0000}, length of the virtual address put into slot_virt is 1M.

get pmd of the start address of fixed bitmap with early_ioremap_pmd.

bm_pte is the entry of early ioremap page table, after initializing it's set as the first page table of the pmd.

check if start address and end address of fixed bitmap are in same pmd, the result is yes.
1. initialize linux global parameters with boot_params, the boot_params as follow:


(gdb) p boot_params
$14 = {screen_info = {orig_x = 0 '\000', orig_y = 3 '\003', 
    ext_mem_k = 32768, orig_video_page = 0, orig_video_mode = 3 '\003', 
    orig_video_cols = 80 'P', unused2 = 0, orig_video_ega_bx = 0, 
    unused3 = 0, orig_video_lines = 25 '\031', orig_video_isVGA = 1 '\001', 
    orig_video_points = 16, lfb_width = 0, lfb_height = 0, lfb_depth = 0, 
    lfb_base = 0, lfb_size = 0, cl_magic = 41791, cl_offset = 4096, 
    lfb_linelength = 0, red_size = 0 '\000', red_pos = 0 '\000', 
    green_size = 0 '\000', green_pos = 0 '\000', blue_size = 0 '\000', 
    blue_pos = 0 '\000', rsvd_size = 0 '\000', rsvd_pos = 0 '\000', 
    vesapm_seg = 0, vesapm_off = 0, pages = 0, vesa_attributes = 0, 
    capabilities = 0, _reserved = "\000\000\000\000\000"}, apm_bios_info = {
    version = 0, cseg = 0, offset = 0, cseg_16 = 0, dseg = 0, flags = 0, 
    cseg_len = 0, cseg_16_len = 0, dseg_len = 0}, _pad2 = "\000\000\000", 
  tboot_addr = 0, ist_info = {signature = 0, command = 0, event = 0, 
    perf_level = 0}, _pad3 = '\000' <repeats 15 times>, 
  hd0_info = '\000' <repeats 15 times>, hd1_info = '\000' <repeats 15 times>, 
  sys_desc_table = {length = 0, table = '\000' <repeats 13 times>}, 
  _pad4 = '\000' <repeats 143 times>, edid_info = {
    dummy = '\000' <repeats 127 times>}, efi_info = {
    efi_loader_signature = 0, efi_systab = 0, efi_memdesc_size = 0, 
    efi_memdesc_version = 0, efi_memmap = 0, efi_memmap_size = 0, 
    efi_systab_hi = 0, efi_memmap_hi = 0}, alt_mem_k = 32768, 
  scratch = 16777253, e820_entries = 6 '\006', eddbuf_entries = 0 '\000', 
  edd_mbr_sig_buf_entries = 0 '\000', _pad6 = "\000\000\000\000\000", hdr = {
    setup_sects = 29 '\035', root_flags = 1, syssize = 255531, ram_size = 0, 
    vid_mode = 65535, root_dev = 256, boot_flag = 0, jump = 25323, 
    header = 1400005704, version = 522, realmode_swtch = 0, start_sys = 4096, 
    kernel_version = 12256, type_of_loader = 114 'r', loadflags = 129 '\201', 
    setup_move_size = 32768, code32_start = 16777216, 
    ramdisk_image = 125521920, ramdisk_size = 2688152, bootsect_kludge = 0, 
    heap_end_ptr = 36352, ext_loader_ver = 0 '\000', 
    ext_loader_type = 0 '\000', cmd_line_ptr = 585728, 
    initrd_addr_max = 2147483647, kernel_alignment = 16777216, 
    relocatable_kernel = 1 '\001', _pad2 = "\r\000", cmdline_size = 2047, 
    hardware_subarch = 0, hardware_subarch_data = 0, payload_offset = 108, 
    payload_length = 4071132, setup_data = 0}, 
  _pad7 = "\000\000\000\001\000\000\000\000\000`\005\001\214؎\300\374\214\322\071\302\211\342t\026\272@M\366\006\021\002\200t\004\213\026$\002\201\302\000\002s\002\061҃\342\374u\003\272\374\377\216", edd_mbr_sig_buffer = {3071239888, 
    1746861026, 1724580507, 981220993, 1515891285, 2160007029, 1296283962, 
    700461414, 48873977, 1722509043, 2785768, 1085826560, 1711276035, 23528, 
    4243190784, 1716741887}, e820_map = {{addr = 0, size = 654336, type = 1}, 
    {addr = 654336, size = 1024, type = 2}, {addr = 983040, size = 65536, 
      type = 2}, {addr = 1048576, size = 133160960, type = 1}, {
      addr = 134209536, size = 8192, type = 2}, {addr = 4294705152, 
      size = 262144, type = 2}, {addr = 8386105371570413680, 
      size = 7959390400868086389, type = 774778468}, {addr = 429504151814154, 
      size = 5360972406433298790, type = 2162564980}, {
      addr = 5288919717233059044, size = 9288118376811991924, 
      type = 3874185444}, {addr = 7403972105352839848, 
      size = 7404875461093975747, type = 3526452819}, {
      addr = 16901727696821084814, size = 9900603030087886436, 
      type = 2372298698}, {addr = 7356195521970962716, 
      size = 16573809675471316034, type = 2707842432}, {
      addr = 16998683756064014864, size = 1047480971247576579, 
      type = 1533411840}, {addr = 9468346965594391398, size = 1102655663340, 
      type = 2215594854}, {addr = 140532646082, size = 9612651929639184486, 
      type = 1711699136}, {addr = 0, size = 0, 
      type = 0} <repeats 113 times>}, _pad8 = '\000' <repeats 47 times>, 
  eddbuf = {{device = 0 '\000', version = 0 '\000', interface_support = 0, 
      legacy_max_cylinder = 0, legacy_max_head = 0 '\000', 
      legacy_sectors_per_track = 0 '\000', params = {length = 0, 
        info_flags = 0, num_default_cylinders = 0, num_default_heads = 0, 
        sectors_per_track = 0, number_of_sectors = 0, bytes_per_sector = 0, 
        dpte_ptr = 0, key = 0, device_path_info_length = 0 '\000', 
        reserved2 = 0 '\000', reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}, {device = 0 '\000', 
      version = 0 '\000', interface_support = 0, legacy_max_cylinder = 0, 
      legacy_max_head = 0 '\000', legacy_sectors_per_track = 0 '\000', 
      params = {length = 0, info_flags = 0, num_default_cylinders = 0, 
        num_default_heads = 0, sectors_per_track = 0, number_of_sectors = 0, 
        bytes_per_sector = 0, dpte_ptr = 0, key = 0, 
        device_path_info_length = 0 '\000', reserved2 = 0 '\000', 
        reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}, {device = 0 '\000', 
      version = 0 '\000', interface_support = 0, legacy_max_cylinder = 0, 
      legacy_max_head = 0 '\000', legacy_sectors_per_track = 0 '\000', 
      params = {length = 0, info_flags = 0, num_default_cylinders = 0, 
        num_default_heads = 0, sectors_per_track = 0, number_of_sectors = 0, 
        bytes_per_sector = 0, dpte_ptr = 0, key = 0, 
        device_path_info_length = 0 '\000', reserved2 = 0 '\000', 
        reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}, {device = 0 '\000', 
      version = 0 '\000', interface_support = 0, legacy_max_cylinder = 0, 
      legacy_max_head = 0 '\000', legacy_sectors_per_track = 0 '\000', 
      params = {length = 0, info_flags = 0, num_default_cylinders = 0, 
        num_default_heads = 0, sectors_per_track = 0, number_of_sectors = 0, 
        bytes_per_sector = 0, dpte_ptr = 0, key = 0, 
        device_path_info_length = 0 '\000', reserved2 = 0 '\000', 
        reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}, {device = 0 '\000', 
      version = 0 '\000', interface_support = 0, legacy_max_cylinder = 0, 
      legacy_max_head = 0 '\000', legacy_sectors_per_track = 0 '\000', 
      params = {length = 0, info_flags = 0, num_default_cylinders = 0, 
        num_default_heads = 0, sectors_per_track = 0, number_of_sectors = 0, 
        bytes_per_sector = 0, dpte_ptr = 0, key = 0, 
        device_path_info_length = 0 '\000', reserved2 = 0 '\000', 
        reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}, {device = 0 '\000', 
      version = 0 '\000', interface_support = 0, legacy_max_cylinder = 0, 
      legacy_max_head = 0 '\000', legacy_sectors_per_track = 0 '\000', 
      params = {length = 0, info_flags = 0, num_default_cylinders = 0, 
        num_default_heads = 0, sectors_per_track = 0, number_of_sectors = 0, 
        bytes_per_sector = 0, dpte_ptr = 0, key = 0, 
        device_path_info_length = 0 '\000', reserved2 = 0 '\000', 
        reserved3 = 0, host_bus_type = "\000\000\000", 
        interface_type = "\000\000\000\000\000\000\000", interface_path = {
          isa = {base_address = 0, reserved1 = 0, reserved2 = 0}, pci = {
            bus = 0 '\000', slot = 0 '\000', function = 0 '\000', 
            channel = 0 '\000', reserved = 0}, ibnd = {reserved = 0}, xprs = {
            reserved = 0}, htpt = {reserved = 0}, unknown = {reserved = 0}}, 
        device_path = {ata = {device = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0, reserved3 = 0, reserved4 = 0}, atapi = {
            device = 0 '\000', lun = 0 '\000', reserved1 = 0 '\000', 
            reserved2 = 0 '\000', reserved3 = 0, reserved4 = 0}, scsi = {
            id = 0, lun = 0, reserved1 = 0, reserved2 = 0}, usb = {
            serial_number = 0, reserved = 0}, i1394 = {eui = 0, 
            reserved = 0}, fibre = {wwid = 0, lun = 0}, i2o = {
            identity_tag = 0, reserved = 0}, raid = {array_number = 0, 
            reserved1 = 0, reserved2 = 0}, sata = {device = 0 '\000', 
            reserved1 = 0 '\000', reserved2 = 0, reserved3 = 0, 
            reserved4 = 0}, unknown = {reserved1 = 0, reserved2 = 0}}, 
        reserved4 = 0 '\000', checksum = 0 '\000'}}}, 
  _pad9 = '\000' <repeats 275 times>}

x86_init_noop initialize x86, but the defination of the function is null.

x86 platform setup functions preset as follow


arch/x86/kernel/x86_init.c:22

/*
 * The platform setup functions are preset with the default functions
 * for standard PC hardware.
 */
struct x86_init_ops x86_init __initdata = {

    .resources = {
        .probe_roms        = x86_init_noop,
        .reserve_resources    = reserve_standard_io_resources,
        .memory_setup        = default_machine_specific_memory_setup,
    },

    .mpparse = {
        .mpc_record        = x86_init_uint_noop,
        .setup_ioapic_ids    = x86_init_noop,
        .mpc_apic_id        = default_mpc_apic_id,
        .smp_read_mpc_oem    = default_smp_read_mpc_oem,
        .mpc_oem_bus_info    = default_mpc_oem_bus_info,
        .find_smp_config    = default_find_smp_config,
        .get_smp_config        = default_get_smp_config,
    },

    .irqs = {
        .pre_vector_init    = init_ISA_irqs,
        .intr_init        = native_init_IRQ,
        .trap_init        = x86_init_noop,
    },

    .oem = {
        .arch_setup        = x86_init_noop,
        .banner            = default_banner,
    },

    .paging = {
        .pagetable_setup_start    = native_pagetable_setup_start,
        .pagetable_setup_done    = native_pagetable_setup_done,
    },

    .timers = {
        .setup_percpu_clockev    = setup_boot_APIC_clock,
        .tsc_pre_init        = x86_init_noop,
        .timer_init        = hpet_time_init,
    },
};

setup_memory_map sanitize BOIS e820 map which responsed by e820 as some e820 responses include overlapping entries, replaces the original e820 map with a new one, removing overlaps, and resolving conflicting memory types in favor of highest numbered type. After sanitized setup kernel e820 memory map with the updated BIOS e820 map.


(gdb) p *pnr_map 
$18 = 6

addr       size       type
0,         9fc00,     1
9fc00,     400,       2
f0000,     10000,     2
100000,    7efe000,   1
7ffe000,   2000,      2
fffc0000,  40000,     2

parse_setup_data parse setup data in boot_params, if setup_data exists remap it.


(gdb) p pa_data
$60 = 0

(gdb) p /x boot_params.hdr.version 
$62 = 0x20a

e820_reserve_setup_data setup e820 data, here is e820_saved.
copy_edd copy the BIOS EDD information from boot_params into a safe place.


(gdb) p /x edd.mbr_signature
$68 = {0xb70f66d0, 0x681efbe2, 0x66cb029b, 0x3a7c3e81, 0x5a5aaa55, 
  0x80bf1775, 0x4d43b93a, 0x29c03166, 0x2e9c1f9, 0x66ab66f3, 0x2a81e8, 
  0x40b86600, 0x66000003, 0x5be8, 0xfce9f400, 0x665366ff}
(gdb) p /x edd.edd_info
$69 = {{device = 0x0, version = 0x0, interface_support = 0x0, 
    legacy_max_cylinder = 0x0, legacy_max_head = 0x0, 
    legacy_sectors_per_track = 0x0, params = {length = 0x0, info_flags = 0x0, 
      num_default_cylinders = 0x0, num_default_heads = 0x0, 
      sectors_per_track = 0x0, number_of_sectors = 0x0, 
      bytes_per_sector = 0x0, dpte_ptr = 0x0, key = 0x0, 
      device_path_info_length = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
      host_bus_type = {0x0, 0x0, 0x0, 0x0}, interface_type = {0x0, 0x0, 0x0, 
        0x0, 0x0, 0x0, 0x0, 0x0}, interface_path = {isa = {
          base_address = 0x0, reserved1 = 0x0, reserved2 = 0x0}, pci = {
          bus = 0x0, slot = 0x0, function = 0x0, channel = 0x0, 
          reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {reserved = 0x0}, 
        htpt = {reserved = 0x0}, unknown = {reserved = 0x0}}, device_path = {
        ata = {device = 0x0, reserved1 = 0x0, reserved2 = 0x0, 
          reserved3 = 0x0, reserved4 = 0x0}, atapi = {device = 0x0, 
          lun = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}, {device = 0x0, version = 0x0, 
    interface_support = 0x0, legacy_max_cylinder = 0x0, 
    legacy_max_head = 0x0, legacy_sectors_per_track = 0x0, params = {
      length = 0x0, info_flags = 0x0, num_default_cylinders = 0x0, 
      num_default_heads = 0x0, sectors_per_track = 0x0, 
      number_of_sectors = 0x0, bytes_per_sector = 0x0, dpte_ptr = 0x0, 
      key = 0x0, device_path_info_length = 0x0, reserved2 = 0x0, 
      reserved3 = 0x0, host_bus_type = {0x0, 0x0, 0x0, 0x0}, 
      interface_type = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 
      interface_path = {isa = {base_address = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, pci = {bus = 0x0, slot = 0x0, function = 0x0, 
          channel = 0x0, reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {
          reserved = 0x0}, htpt = {reserved = 0x0}, unknown = {
          reserved = 0x0}}, device_path = {ata = {device = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, atapi = {device = 0x0, lun = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}, {device = 0x0, version = 0x0, 
    interface_support = 0x0, legacy_max_cylinder = 0x0, 
    legacy_max_head = 0x0, legacy_sectors_per_track = 0x0, params = {
      length = 0x0, info_flags = 0x0, num_default_cylinders = 0x0, 
      num_default_heads = 0x0, sectors_per_track = 0x0, 
      number_of_sectors = 0x0, bytes_per_sector = 0x0, dpte_ptr = 0x0, 
      key = 0x0, device_path_info_length = 0x0, reserved2 = 0x0, 
      reserved3 = 0x0, host_bus_type = {0x0, 0x0, 0x0, 0x0}, 
      interface_type = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 
      interface_path = {isa = {base_address = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, pci = {bus = 0x0, slot = 0x0, function = 0x0, 
          channel = 0x0, reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {
          reserved = 0x0}, htpt = {reserved = 0x0}, unknown = {
          reserved = 0x0}}, device_path = {ata = {device = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, atapi = {device = 0x0, lun = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}, {device = 0x0, version = 0x0, 
    interface_support = 0x0, legacy_max_cylinder = 0x0, 
    legacy_max_head = 0x0, legacy_sectors_per_track = 0x0, params = {
      length = 0x0, info_flags = 0x0, num_default_cylinders = 0x0, 
      num_default_heads = 0x0, sectors_per_track = 0x0, 
      number_of_sectors = 0x0, bytes_per_sector = 0x0, dpte_ptr = 0x0, 
      key = 0x0, device_path_info_length = 0x0, reserved2 = 0x0, 
      reserved3 = 0x0, host_bus_type = {0x0, 0x0, 0x0, 0x0}, 
      interface_type = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 
      interface_path = {isa = {base_address = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, pci = {bus = 0x0, slot = 0x0, function = 0x0, 
          channel = 0x0, reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {
          reserved = 0x0}, htpt = {reserved = 0x0}, unknown = {
          reserved = 0x0}}, device_path = {ata = {device = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, atapi = {device = 0x0, lun = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}, {device = 0x0, version = 0x0, 
    interface_support = 0x0, legacy_max_cylinder = 0x0, 
    legacy_max_head = 0x0, legacy_sectors_per_track = 0x0, params = {
      length = 0x0, info_flags = 0x0, num_default_cylinders = 0x0, 
      num_default_heads = 0x0, sectors_per_track = 0x0, 
      number_of_sectors = 0x0, bytes_per_sector = 0x0, dpte_ptr = 0x0, 
      key = 0x0, device_path_info_length = 0x0, reserved2 = 0x0, 
      reserved3 = 0x0, host_bus_type = {0x0, 0x0, 0x0, 0x0}, 
      interface_type = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 
      interface_path = {isa = {base_address = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, pci = {bus = 0x0, slot = 0x0, function = 0x0, 
          channel = 0x0, reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {
          reserved = 0x0}, htpt = {reserved = 0x0}, unknown = {
          reserved = 0x0}}, device_path = {ata = {device = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, atapi = {device = 0x0, lun = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}, {device = 0x0, version = 0x0, 
    interface_support = 0x0, legacy_max_cylinder = 0x0, 
    legacy_max_head = 0x0, legacy_sectors_per_track = 0x0, params = {
      length = 0x0, info_flags = 0x0, num_default_cylinders = 0x0, 
      num_default_heads = 0x0, sectors_per_track = 0x0, 
      number_of_sectors = 0x0, bytes_per_sector = 0x0, dpte_ptr = 0x0, 
      key = 0x0, device_path_info_length = 0x0, reserved2 = 0x0, 
      reserved3 = 0x0, host_bus_type = {0x0, 0x0, 0x0, 0x0}, 
      interface_type = {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 
      interface_path = {isa = {base_address = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, pci = {bus = 0x0, slot = 0x0, function = 0x0, 
          channel = 0x0, reserved = 0x0}, ibnd = {reserved = 0x0}, xprs = {
          reserved = 0x0}, htpt = {reserved = 0x0}, unknown = {
          reserved = 0x0}}, device_path = {ata = {device = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, atapi = {device = 0x0, lun = 0x0, 
          reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, scsi = {id = 0x0, lun = 0x0, reserved1 = 0x0, 
          reserved2 = 0x0}, usb = {serial_number = 0x0, reserved = 0x0}, 
        i1394 = {eui = 0x0, reserved = 0x0}, fibre = {wwid = 0x0, lun = 0x0}, 
        i2o = {identity_tag = 0x0, reserved = 0x0}, raid = {
          array_number = 0x0, reserved1 = 0x0, reserved2 = 0x0}, sata = {
          device = 0x0, reserved1 = 0x0, reserved2 = 0x0, reserved3 = 0x0, 
          reserved4 = 0x0}, unknown = {reserved1 = 0x0, reserved2 = 0x0}}, 
      reserved4 = 0x0, checksum = 0x0}}}
(gdb) p /x edd.mbr_signature_nr
$70 = 0x0
(gdb) p /x edd.edd_info_nr
$71 = 0x0

start_kernel part III

start_kernel part III

Links

results matching ""

No results matching ""