Struct ExtendedFeatureEnableRegister

pub struct ExtendedFeatureEnableRegister(/* private fields */);

Available on x86-64 only.

IA32_EFER: Model-specific register that controls features relating to 64-bit operation.

Implementations

impl ExtendedFeatureEnableRegister

pub fn syscall(&self) -> bool

IA32_EFER.SCE: Support SYSCALL/SYSRET in 64-bit mode.

pub fn long_mode_enabled(&self) -> bool

IA32_EFER.LME: Support 64-bit mode.

pub fn long_mode_active(&self) -> bool

IA32_EFER.LMA: Indicates 64-bit mode is active. Read-only.

This is logically the equivalent to [Self::long_mode_enabled] & [ControlRegister0::paging].

pub fn no_execute(&self) -> bool

IA32-EFER.NXE: Support no-execute (NX) bit in page tables.

pub fn set_syscall(&mut self, value: bool)

IA32_EFER.SCE: Support SYSCALL/SYSRET in 64-bit mode.

pub fn with_syscall(&mut self, value: bool) -> Self

IA32_EFER.SCE: Support SYSCALL/SYSRET in 64-bit mode.

pub fn set_long_mode_enabled(&mut self, value: bool)

IA32_EFER.LME: Support 64-bit mode.

pub fn with_long_mode_enabled(&mut self, value: bool) -> Self

IA32_EFER.LME: Support 64-bit mode.

pub fn set_long_mode_active(&mut self, value: bool)

IA32_EFER.LMA: Indicates 64-bit mode is active. Read-only.

This is logically the equivalent to [Self::long_mode_enabled] & [ControlRegister0::paging].

pub fn with_long_mode_active(&mut self, value: bool) -> Self

IA32_EFER.LMA: Indicates 64-bit mode is active. Read-only.

This is logically the equivalent to [Self::long_mode_enabled] & [ControlRegister0::paging].

pub fn set_no_execute(&mut self, value: bool)

IA32-EFER.NXE: Support no-execute (NX) bit in page tables.

pub fn with_no_execute(&mut self, value: bool) -> Self

IA32-EFER.NXE: Support no-execute (NX) bit in page tables.

impl ExtendedFeatureEnableRegister

pub fn get() -> Self

Retrieve the current value of this register

pub unsafe fn set(value: Self)

Update the register to the given value.

Safety

Altering certain system flags can have dramatic effects on the execution of this and other programs, including memory safety.

Trait Implementations

impl Bitfield<u64> for ExtendedFeatureEnableRegister

fn new(value: T) -> Self

Construct a new bitfield type from its underlying representation

fn value(self) -> T

Unwrap the bitfield into its underlying representation

impl Clone for ExtendedFeatureEnableRegister

fn clone(&self) -> ExtendedFeatureEnableRegister

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtendedFeatureEnableRegister

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

Formats the value using the given formatter.

impl Default for ExtendedFeatureEnableRegister

fn default() -> ExtendedFeatureEnableRegister

Returns the “default value” for a type.

impl From<ExtendedFeatureEnableRegister> for u64

fn from(val: ExtendedFeatureEnableRegister) -> Self

Converts to this type from the input type.

impl From<u64> for ExtendedFeatureEnableRegister

fn from(val: u64) -> Self

Converts to this type from the input type.

impl PartialEq for ExtendedFeatureEnableRegister

fn eq(&self, other: &ExtendedFeatureEnableRegister) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ExtendedFeatureEnableRegister

impl Eq for ExtendedFeatureEnableRegister

impl StructuralPartialEq for ExtendedFeatureEnableRegister