Struct KernelHeader 

#[repr(C)]
pub struct KernelHeader {

    pub kernel_magic: u32,
    pub header_version: u16,
    pub arch: u8,
    pub kernel_type: u8,
    pub kernel_flags: u32,
    pub min_memory_mb: u32,
    pub entry_point: u64,
    pub image_size: u64,
    pub compressed_size: u64,
    pub compression: u8,
    pub api_transport: u8,
    pub api_port: u16,
    pub api_version: u32,
    pub image_hash: [u8; 32],
    pub build_id: [u8; 16],
    pub build_timestamp: u64,
    pub vcpu_count: u32,
    pub reserved_0: u32,
    pub cmdline_offset: u64,
    pub cmdline_length: u32,
    pub reserved_1: u32,
}

128-byte header for KERNEL_SEG payloads.

Follows the standard 64-byte SegmentHeader. All multi-byte fields are little-endian on the wire except api_port which is network byte order (big-endian) per ADR-030.

Fields

kernel_magic: u32

Magic: KERNEL_MAGIC (0x52564B4E, “RVKN”).

header_version: u16

KernelHeader format version (currently 1).

arch: u8

Target architecture (see KernelArch).

kernel_type: u8

Kernel type (see KernelType).

kernel_flags: u32

Bitfield flags (see KERNEL_FLAG_* constants).

min_memory_mb: u32

Minimum RAM required (MiB).

entry_point: u64

Virtual address of kernel entry point.

image_size: u64

Uncompressed kernel image size (bytes).

compressed_size: u64

Compressed kernel image size (bytes).

compression: u8

Compression algorithm (same enum as SegmentHeader.compression).

api_transport: u8

API transport (see ApiTransport).

api_port: u16

Default API port (network byte order).

api_version: u32

Supported RVF query API version.

image_hash: [u8; 32]

SHAKE-256-256 of uncompressed kernel image.

build_id: [u8; 16]

Unique build identifier (UUID v7).

build_timestamp: u64

Build time (nanosecond UNIX timestamp).

vcpu_count: u32

Recommended vCPU count (0 = single).

reserved_0: u32

Reserved (must be zero).

cmdline_offset: u64

Offset to kernel command line within payload.

cmdline_length: u32

Length of kernel command line (bytes).

reserved_1: u32

Reserved (must be zero).

Implementations

impl KernelHeader

pub fn to_bytes(&self) -> [u8; 128]

Serialize the header to a 128-byte little-endian array.

pub fn from_bytes(data: &[u8; 128]) -> Result<Self, RvfError>

Deserialize a KernelHeader from a 128-byte slice.

Trait Implementations

impl Clone for KernelHeader

fn clone(&self) -> KernelHeader

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KernelHeader

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

Formats the value using the given formatter.

impl Copy for KernelHeader