Struct AddrSpace 

pub struct AddrSpace<H: PagingHandler> { /* private fields */ }

The virtual memory address space.

Implementations

impl<H: PagingHandler> AddrSpace<H>

pub const fn base(&self) -> GuestPhysAddr

Returns the address space base.

pub const fn end(&self) -> GuestPhysAddr

Returns the address space end.

pub fn size(&self) -> usize

Returns the address space size.

pub const fn page_table( &self, ) -> &PageTable64<ExtendedPageTableMetadata, EPTEntry, H>

Returns the reference to the inner page table.

pub const fn page_table_root(&self) -> PhysAddr

Returns the root physical address of the inner page table.

pub fn contains_range(&self, start: GuestPhysAddr, size: usize) -> bool

Checks if the address space contains the given address range.

pub fn new_empty(base: GuestPhysAddr, size: usize) -> AxResult<Self>

Creates a new empty address space.

pub fn map_linear( &mut self, start_vaddr: GuestPhysAddr, start_paddr: PhysAddr, size: usize, flags: MappingFlags, ) -> AxResult

Add a new linear mapping.

See Backend for more details about the mapping backends.

The flags parameter indicates the mapping permissions and attributes.

pub fn map_alloc( &mut self, start: GuestPhysAddr, size: usize, flags: MappingFlags, populate: bool, ) -> AxResult

Add a new allocation mapping.

See Backend for more details about the mapping backends.

The flags parameter indicates the mapping permissions and attributes.

pub fn unmap(&mut self, start: GuestPhysAddr, size: usize) -> AxResult

Removes mappings within the specified virtual address range.

pub fn clear(&mut self)

Removes all mappings in the address space.

pub fn handle_page_fault( &mut self, vaddr: GuestPhysAddr, access_flags: MappingFlags, ) -> bool

Handles a page fault at the given address.

access_flags indicates the access type that caused the page fault.

Returns true if the page fault is handled successfully (not a real fault).

pub fn translate(&self, vaddr: GuestPhysAddr) -> Option<PhysAddr>

Translates the given VirtAddr into PhysAddr.

Returns None if the virtual address is out of range or not mapped.

pub fn translated_byte_buffer( &self, vaddr: GuestPhysAddr, len: usize, ) -> Option<Vec<&'static mut [u8]>>

Translate&Copy the given VirtAddr with LENGTH len to a mutable u8 Vec through page table.

Returns None if the virtual address is out of range or not mapped.

pub fn translate_and_get_limit( &self, vaddr: GuestPhysAddr, ) -> Option<(PhysAddr, usize)>

Translates the given VirtAddr into PhysAddr, and returns the size of the MemoryArea corresponding to the target vaddr.

Returns None if the virtual address is out of range or not mapped.

Trait Implementations

impl<H: PagingHandler> Debug for AddrSpace<H>

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

Formats the value using the given formatter.

impl<H: PagingHandler> Drop for AddrSpace<H>

fn drop(&mut self)

Executes the destructor for this type.