Struct MultibootLegacyInfo

#[repr(C, packed(1))]
struct MultibootLegacyInfo {

    flags: u32,
    mem_lower: u32,
    mem_upper: u32,
    boot_device: u32,
    cmdline: u32,
    mods_count: u32,
    mods_addr: u32,
    symbols: [u8; 16],
    memory_map_len: u32,
    memory_map_addr: u32,
    drives_length: u32,
    drives_addr: u32,
    config_table: u32,
    boot_loader_name: u32,
    apm_table: u32,
    vbe_table: VbeTable,
    framebuffer_table: FramebufferTable,
}

Representation of Multiboot Information according to specification.

Ref: https://www.gnu.org/software/grub/manual/multiboot/multiboot.html#Boot-information-format.

         +-------------------+
 0       | flags             |    (required)
         +-------------------+
 4       | mem_lower         |    (present if flags[0] is set)
 8       | mem_upper         |    (present if flags[0] is set)
         +-------------------+
 12      | boot_device       |    (present if flags[1] is set)
         +-------------------+
 16      | cmdline           |    (present if flags[2] is set)
         +-------------------+
 20      | mods_count        |    (present if flags[3] is set)
 24      | mods_addr         |    (present if flags[3] is set)
         +-------------------+
 28 - 40 | syms              |    (present if flags[4] or
         |                   |                flags[5] is set)
         +-------------------+
 44      | mmap_length       |    (present if flags[6] is set)
 48      | mmap_addr         |    (present if flags[6] is set)
         +-------------------+
 52      | drives_length     |    (present if flags[7] is set)
 56      | drives_addr       |    (present if flags[7] is set)
         +-------------------+
 60      | config_table      |    (present if flags[8] is set)
         +-------------------+
 64      | boot_loader_name  |    (present if flags[9] is set)
         +-------------------+
 68      | apm_table         |    (present if flags[10] is set)
         +-------------------+
 72      | vbe_control_info  |    (present if flags[11] is set)
 76      | vbe_mode_info     |
 80      | vbe_mode          |
 82      | vbe_interface_seg |
 84      | vbe_interface_off |
 86      | vbe_interface_len |
         +-------------------+
 88      | framebuffer_addr  |    (present if flags[12] is set)
 96      | framebuffer_pitch |
 100     | framebuffer_width |
 104     | framebuffer_height|
 108     | framebuffer_bpp   |
 109     | framebuffer_type  |
 110-115 | color_info        |
         +-------------------+

Fields

flags: u32

Indicate whether the below field exists.

mem_lower: u32

Physical memory low.

mem_upper: u32

Physical memory high.

boot_device: u32

Indicates which BIOS disk device the boot loader loaded the OS image from.

cmdline: u32

Command line passed to kernel.

mods_count: u32

Modules count.

mods_addr: u32

The start address of modules list, each module structure format:

        +-------------------+
0       | mod_start         |
4       | mod_end           |
        +-------------------+
8       | string            |
        +-------------------+
12      | reserved (0)      |
        +-------------------+

symbols: [u8; 16]

If flags[4] = 1, then the field starting at byte 28 are valid:

        +-------------------+
28      | tabsize           |
32      | strsize           |
36      | addr              |
40      | reserved (0)      |
        +-------------------+

These indicate where the symbol table from kernel image can be found.

If flags[5] = 1, then the field starting at byte 28 are valid:

        +-------------------+
28      | num               |
32      | size              |
36      | addr              |
40      | shndx             |
        +-------------------+

These indicate where the section header table from an ELF kernel is, the size of each entry, number of entries, and the string table used as the index of names.

memory_map_len: u32

memory_map_addr: u32

drives_length: u32

drives_addr: u32

config_table: u32

boot_loader_name: u32

apm_table: u32

vbe_table: VbeTable

framebuffer_table: FramebufferTable

Implementations

impl MultibootLegacyInfo

fn get_memory_map(&self) -> MemoryEntryIter

Trait Implementations

impl Clone for MultibootLegacyInfo

fn clone(&self) -> MultibootLegacyInfo

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MultibootLegacyInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for MultibootLegacyInfo