Struct PteReader 

pub struct PteReader<'a, PTE, Mapper, Error>
where
    PTE: FromPrimitive + PrimInt + Unsigned,
    Mapper: PageTableMapper<PTE, Error>,
{
    pub mapper: &'a Mapper,
    pub pte: Option<PTE>,
    pub error: PhantomData<Error>,
}

The PteReader struct is an implementation of a crate::walker::PageWalker used to retrieve the PTE for a given virtual address, which is used by the AddressSpace::read_pte method.

Fields

mapper: &'a Mapper

The page table mapper.

pte: Option<PTE>

Storage for the retrieved PTE.

error: PhantomData<Error>

A marker for Error.

Trait Implementations

impl<'a, PTE, Mapper, Error> PageWalker<PTE, Error> for PteReader<'a, PTE, Mapper, Error>

where PTE: FromPrimitive + PrimInt + Unsigned, Mapper: PageTableMapper<PTE, Error>,

fn read_pte(&self, phys_addr: PTE) -> Result<PTE, Error>

Reads the PTE at the given physical address.

fn handle_pte( &mut self, pte_type: PteType, _range: Range<usize>, pte: &PTE, ) -> Result<(), Error>

Stores the PTE of the page, if the virtual address resolves to a page.

fn handle_pte_hole( &mut self, _level: usize, _range: Range<usize>, _pte: &PTE, ) -> Result<(), Error>

This callback handles a PTE hole, i.e. a PTE that is not marked as present, and is given the level, the virtual address range and an immutable reference to the PTE. The implementation of this callback is optional.

fn handle_post_pte( &mut self, _level: usize, _range: Range<usize>, _pte: &PTE, ) -> Result<(), Error>

This callback handles the PTE of a page table after recursing the page table hierarchy, and is given the level, the virtual address and an immutable reference to the PTE. The implementation of this callback is optional.