Struct ExtendedState 

#[repr(C, align(64))]
pub struct ExtendedState {
    pub data: [u8; 2688],
    pub size: usize,
    pub uses_xsave: bool,
    pub xcr0_mask: u64,
}

FPU/SSE/AVX extended state, saved and restored on context switch.

When XSAVE is available, uses xsave/xrstor with a variable-size area. Falls back to fxsave/fxrstor (512 bytes) on older CPUs.

Fields

data: [u8; 2688]

size: usize

uses_xsave: bool

xcr0_mask: u64

Implementations

impl ExtendedState

pub const FXSAVE_SIZE: usize = 512

pub const MAX_XSAVE_SIZE: usize = 2688

pub fn new() -> Self

Create a new default state using the host’s maximum capabilities.

pub fn for_xcr0(xcr0: u64) -> Self

Create a state for a specific XCR0 mask (per-silo feature restriction).

pub fn copy_from(&mut self, other: &ExtendedState)

Copy the state from another ExtendedState.

Trait Implementations

impl Debug for ExtendedState

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

Formats the value using the given formatter.