[−][src]Trait sunrise_bootstrap::paging::PageTablesSet

pub trait PageTablesSet {
    fn map_to(&mut self, mapping: MappingType, address: VirtualAddress);

    fn get_phys(
        &mut self, 
        address: VirtualAddress
    ) -> PageState<PhysicalAddress>;

    fn find_available_virtual_space_aligned<Land: VirtualSpaceLand>(
        &mut self, 
        page_nb: usize, 
        alignement: usize
    ) -> Option<VirtualAddress>;

    fn unmap(&mut self, page: VirtualAddress) -> PageState<Frame>;

    fn print_mapping(&mut self) { ... }

    fn map_allocate_to(&mut self, address: VirtualAddress, flags: EntryFlags) { ... }

    fn map_frame<Land: VirtualSpaceLand>(
        &mut self, 
        frame: Frame, 
        flags: EntryFlags
    ) -> VirtualAddress { ... }

    fn get_page<Land: VirtualSpaceLand>(&mut self) -> VirtualAddress { ... }

    fn map_page_guard(&mut self, address: VirtualAddress) { ... }

    fn map_range_page_guard(&mut self, address: VirtualAddress, page_nb: usize) { ... }

    fn map_range(
        &mut self, 
        phys_addr: PhysicalAddress, 
        address: VirtualAddress, 
        page_nb: usize, 
        flags: EntryFlags
    ) { ... }

    fn map_range_allocate(
        &mut self, 
        address: VirtualAddress, 
        page_nb: usize, 
        flags: EntryFlags
    ) { ... }

    fn identity_map(&mut self, frame: Frame, flags: EntryFlags) { ... }

    fn identity_map_region(
        &mut self, 
        start_address: PhysicalAddress, 
        region_size: usize, 
        flags: EntryFlags
    ) { ... }

    fn find_available_virtual_space<Land: VirtualSpaceLand>(
        &mut self, 
        page_nb: usize
    ) -> Option<VirtualAddress> { ... }

    fn set_page_readonly(&mut self, page_address: VirtualAddress) { ... }

    fn set_region_readonly(
        &mut self, 
        start_address: VirtualAddress, 
        page_nb: usize
    ) { ... }
}

Required methods

fn map_to(&mut self, mapping: MappingType, address: VirtualAddress)

Creates a mapping in the page tables with the given flags

fn get_phys(&mut self, address: VirtualAddress) -> PageState<PhysicalAddress>

Gets the current mapping state of this Virtual Address.

fn find_available_virtual_space_aligned<Land: VirtualSpaceLand>(
    &mut self,
    page_nb: usize,
    alignement: usize
) -> Option<VirtualAddress>

Finds a virtual space hole that can contain page_nb consecutive pages

fn unmap(&mut self, page: VirtualAddress) -> PageState<Frame>

Deletes a mapping in the page tables, returning the Frame if one was mapped.

Panics

Panics if page is not page-aligned.

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Provided methods

fn print_mapping(&mut self)

Prints the current mapping.

fn map_allocate_to(&mut self, address: VirtualAddress, flags: EntryFlags)

Creates a mapping in the page tables with the given flags. Allocates the pointed page

Panics

Panics if address is not page-aligned.

fn map_frame<Land: VirtualSpaceLand>(
    &mut self,
    frame: Frame,
    flags: EntryFlags
) -> VirtualAddress

Maps a given frame in the page tables. Takes care of choosing the virtual address

Panics

Panics if address is not page-aligned.

fn get_page<Land: VirtualSpaceLand>(&mut self) -> VirtualAddress

Creates a mapping in the page tables with the given flags. Allocates the pointed page and chooses the virtual address.

Panics

Panics if we are out of memory.

fn map_page_guard(&mut self, address: VirtualAddress)

Reserves a given page as guard page. This affects only virtual memory and doesn't take any actual physical frame.

Panics

Panics if address is not page-aligned.

fn map_range_page_guard(&mut self, address: VirtualAddress, page_nb: usize)

Reserve a given region as guard pages. If the region spans more than ENTRY_COUNT pages, then the whole page table will be page-guarded.

Panics

Panics if address is not page-aligned.

fn map_range(
    &mut self,
    phys_addr: PhysicalAddress,
    address: VirtualAddress,
    page_nb: usize,
    flags: EntryFlags
)

Maps the given physical address range to the given virtual address

Note that those physical addresses must not be allocated through the Frame Allocator.

Panics

Panics if address is not page-aligned.

fn map_range_allocate(
    &mut self,
    address: VirtualAddress,
    page_nb: usize,
    flags: EntryFlags
)

Maps a given number of consecutive pages at a given address Allocates the frames

Panics

Panics if address is not page-aligned.

fn identity_map(&mut self, frame: Frame, flags: EntryFlags)

Maps a memory frame to the same virtual address

fn identity_map_region(
    &mut self,
    start_address: PhysicalAddress,
    region_size: usize,
    flags: EntryFlags
)

Identity maps a range of frames

Note that those physical addresses must not be allocated through the Frame Allocator.

fn find_available_virtual_space<Land: VirtualSpaceLand>(
    &mut self,
    page_nb: usize
) -> Option<VirtualAddress>

Finds a virtual space hole that can contain page_nb consecutive pages

fn set_page_readonly(&mut self, page_address: VirtualAddress)

Sets a previously mapped page as readonly

Panics

Panics if the page was not mapped or is a guard page

fn set_region_readonly(&mut self, start_address: VirtualAddress, page_nb: usize)

Sets a previously mapped range of pages readonly

Panics

Panics if any of the pages in the range was not mapped or is a guard page

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Implementors

impl<T: I386PageTablesSet> PageTablesSet for T[src]

fn map_to(&mut self, mapping: MappingType, address: VirtualAddress)[src]

Creates a mapping in the page tables with the given flags

fn find_available_virtual_space_aligned<Land: VirtualSpaceLand>(
    &mut self,
    page_nb: usize,
    alignement: usize
) -> Option<VirtualAddress>[src]

Finds a virtual space hole that can contain page_nb consecutive pages

fn unmap(&mut self, page: VirtualAddress) -> PageState<Frame>[src]

Deletes a mapping in the page tables, returning the Frame if one was mapped.

Panics

Panics if page is not page-aligned.

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