Struct mycelium_kernel::arch::interrupt::PageFaultCode

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

Implementations

impl PageFaultCode

pub const PRESENT: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused by a page-protection violation. When not set, it was caused by a non-present page.

pub const WRITE: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused by a write access. When not set, it was caused by a read access.

pub const USER: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused while CPL = 3. This does not necessarily mean that the page fault was a privilege violation.

pub const RESERVED_WRITE: Pack32<bool, PageFaultCode> = _

When set, one or more page directory entries contain reserved bits which are set to 1. This only applies when the PSE or PAE flags in CR4 are set to 1.

pub const INSTRUCTION_FETCH: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused by an instruction fetch. This only applies when the No-Execute bit is supported and enabled.

pub const PROTECTION_KEY: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused by a protection-key violation. The PKRU register (for user-mode accesses) or PKRS MSR (for supervisor-mode accesses) specifies the protection key rights.

pub const SHADOW_STACK: Pack32<bool, PageFaultCode> = _

When set, the page fault was caused by a shadow stack access.

pub const SGX: Pack32<bool, PageFaultCode> = _

When set, the fault was due to an SGX violation. The fault is unrelated to ordinary paging.

pub const fn from_bits(bits: u32) -> PageFaultCode

Constructs a new instance of Self from the provided raw bits.

pub const fn new() -> PageFaultCode

Constructs a new instance of Self with all bits set to 0.

pub const fn bits(self) -> u32

Returns the raw bit representatiion of self as an integer.

pub fn with<T>(self, field: Pack32<T, PageFaultCode>, value: T) -> PageFaultCode

where T: FromBits<u32>,

Packs the bit representation of value into self at the bit range designated by field, returning a new bitfield.

pub fn set<T>( &mut self, field: Pack32<T, PageFaultCode>, value: T ) -> &mut PageFaultCode

where T: FromBits<u32>,

Packs the bit representation of value into self at the range designated by field, mutating self in place.

pub fn get<T>(self, field: Pack32<T, PageFaultCode>) -> T

where T: FromBits<u32>,

Unpacks the bit range represented by field from self, and converts it into a T-typed value.

Panics

This method panics if self does not contain a valid bit pattern for a T-typed value, as determined by T’s FromBits::try_from_bits implementation.

pub fn try_get<T>( self, field: Pack32<T, PageFaultCode> ) -> Result<T, <T as FromBits<u32>>::Error>

where T: FromBits<u32>,

Unpacks the bit range represented by field from self and attempts to convert it into a T-typed value.

Returns

• Ok(T) if a T-typed value could be constructed from the bits in src
• Err(T::Error) if src does not contain a valid bit pattern for a T-typed value, as determined by T’s [FromBits::try_from_bits implementation.

pub fn assert_valid()

Asserts that all the packing specs for this type are valid.

This is intended to be used in unit tests.

pub fn display_ascii(&self) -> impl Display

Returns a value that formats this bitfield in a multi-line format, using only ASCII characters.

This is equivalent to formatting this bitfield using a {} display specifier, but will never use Unicode box-drawing characters, even when an upstream formatter uses the {:#} fmt::Display specifier. This is intended for use on platforms where Unicode box drawing characters are never available.

pub fn display_unicode(&self) -> impl Display

Returns a value that formats this bitfield in a multi-line format, always using Unicode box-drawing characters.

This is equivalent to formatting this bitfield using a {:#} format specifier, but will always use Unicode box-drawing characters, even when an upstream formatter uses the {} fmt::Display specifier.

Trait Implementations

impl Binary for PageFaultCode

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

Formats the value using the given formatter.

impl Clone for PageFaultCode

fn clone(&self) -> PageFaultCode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PageFaultCode

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

Formats the value using the given formatter.

impl Display for PageFaultCode

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

Formats the value using the given formatter.

impl From<u32> for PageFaultCode

fn from(val: u32) -> PageFaultCode

Converts to this type from the input type.

impl LowerHex for PageFaultCode

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

Formats the value using the given formatter.

impl UpperHex for PageFaultCode

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

Formats the value using the given formatter.

impl Copy for PageFaultCode