Struct axmem::AddrSpaceInner

pub struct AddrSpaceInner { /* private fields */ }

mutable inner objects of address space

Implementations

impl AddrSpaceInner

pub fn add_region( &mut self, vaddr: VirtAddr, paddr: PhysAddr, phy_page: Arc<GlobalPage>, flags: MappingFlags, huge_page: bool ) -> AxResult<()>

create a segment region

pub fn add_region_shadow( &mut self, vaddr: VirtAddr, paddr: PhysAddr, size: usize, flags: MappingFlags, huge_page: bool ) -> AxResult<()>

create a segment region without memory allocation

pub fn remove_region(&mut self, vaddr: VirtAddr) -> AxResult<()>

remove a segment

pub fn page_table_addr(&self) -> PhysAddr

get root address of pagetable

pub fn sbrk(&mut self, size: isize) -> Option<usize>

modify heap size

pub fn mmap_page( &mut self, _addr: Option<VirtAddr>, len: usize, flags: MappingFlags ) -> AxResult<VirtAddr>

a simple mmap-like page allocator, except that memory is alloced in pages @param addr: desired memory position @param len: desired pages @returns: starting addr of the maped pages

pub fn munmap_page(&mut self, addr: VirtAddr, len: usize) -> AxResult<()>

unmap a page obtained from mmap

pub fn translate_buffer( &self, vaddr: VirtAddr, size: usize, _write: bool ) -> AxResult<Vec<&'static mut [u8]>>

translate a slice to slices in kernel

pub fn query(&self, vaddr: VirtAddr) -> Option<PhysAddr>

find a mapping of the virtual address

Trait Implementations

impl Default for AddrSpaceInner

fn default() -> Self

Returns the “default value” for a type.