Enum PrivilegeLevel 

#[repr(u8)]
pub enum PrivilegeLevel {
    User = 0,
    Supervisor = 1,
    Machine = 3,
}

Privilege level of the hart.

Variants are assigned their architectural 2-bit encoding as discriminants so that level as u8 yields the value that appears in CSR address bits [9:8] and in mstatus/sstatus privilege fields.

The encoding 0b10 is architecturally reserved and is therefore absent.

Variants

User = 0

User / application mode (least privileged)

Supervisor = 1

Supervisor mode

Machine = 3

Machine mode (most privileged)

Implementations

impl PrivilegeLevel

pub fn from_bits(bits: u8) -> Option<Self>

Create a privilege level from its bit representation

Trait Implementations

impl Clone for PrivilegeLevel

fn clone(&self) -> PrivilegeLevel

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrivilegeLevel

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

Formats the value using the given formatter.

impl Default for PrivilegeLevel

fn default() -> PrivilegeLevel

Returns the “default value” for a type.

impl Ord for PrivilegeLevel

fn cmp(&self, other: &PrivilegeLevel) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for PrivilegeLevel

fn eq(&self, other: &PrivilegeLevel) -> 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 PartialOrd for PrivilegeLevel

fn partial_cmp(&self, other: &PrivilegeLevel) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for PrivilegeLevel

impl Eq for PrivilegeLevel

impl StructuralPartialEq for PrivilegeLevel