Struct VirtualAddressSpace 

pub struct VirtualAddressSpace<P: PhysicalMemoryProvider> {
    physical: P,
    page_table_root: u64,
    mode: TranslationMode,
    pagefiles: Vec<Box<dyn PagefileSource>>,
    prototype_source: Option<Box<dyn PrototypePteSource>>,
}

A virtual address space backed by physical memory and page tables.

Fields

physical: P

page_table_root: u64

mode: TranslationMode

pagefiles: Vec<Box<dyn PagefileSource>>

prototype_source: Option<Box<dyn PrototypePteSource>>

Implementations

impl<P: PhysicalMemoryProvider> VirtualAddressSpace<P>

pub fn new(physical: P, page_table_root: u64, mode: TranslationMode) -> Self

Create a new virtual address space.

pub fn with_pagefile(self, source: Box<dyn PagefileSource>) -> Self

Attach a pagefile source for resolving paged-out memory.

pub fn with_prototype_source(self, source: Box<dyn PrototypePteSource>) -> Self

Attach a prototype PTE source for resolving shared section pages.

pub fn virt_to_phys(&self, vaddr: u64) -> Result<u64>

Translate a virtual address to a physical address.

pub fn read_virt(&self, vaddr: u64, buf: &mut [u8]) -> Result<()>

Read buf.len() bytes from virtual address vaddr, handling page boundary crossings.

Uses walk_x86_64_4level_internal() to resolve each 4K chunk, transparently handling physical, transition, demand-zero, and pagefile pages.

fn read_pagefile_page( &self, vaddr: u64, pagefile_num: u8, page_offset: u64, ) -> Result<[u8; 4096]>

pub fn physical(&self) -> &P

Return a reference to the underlying physical memory provider.

pub fn mode(&self) -> TranslationMode

Return the translation mode.

fn read_pte(&self, addr: u64) -> Result<u64>

fn walk_x86_64_4level(&self, vaddr: u64) -> Result<u64>

fn walk_x86_64_4level_internal(&self, vaddr: u64) -> Result<TranslationResult>

fn decode_non_present_pte(pte: u64, page_offset: u64) -> TranslationResult