Struct lancelot::emu::mmu::MMU

pub fn mprotect(&mut self, addr: VA, size: u64, perms: Permissions) -> Result<()>

pub fn read(
 &self,
 addr: VA,
 buf: &mut [u8],
 perms: Permissions
) -> Result<(), MMUError>

read up to one page worth of data from the given address. read will not span more than two pages.

perms are the permissions used to access the data. these should match the permissions of the underlying page. if the page does not have these permissions, then the access will fail.

Errors: MMUError::AddressNotMapped - if the page is not mapped. MMUError::AccessViolation - if the given address is not readable/executable.

pub fn read_u8(&self, addr: VA) -> Result<u8, MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn read_u16(&self, addr: VA) -> Result<u16, MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn read_u32(&self, addr: VA) -> Result<u32, MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn read_u64(&self, addr: VA) -> Result<u64, MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn read_u128(&self, addr: VA) -> Result<u128, MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn read_page(&self, addr: VA) -> Result<[u8; 4096], MMUError>

read one page worth of data from the given page-aligned address. panics if addr is not page-aligned.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not readable.

pub fn fetch(&self, addr: VA) -> Result<[u8; 16], MMUError>

read 16-bytes of data from the given address.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not executable.

pub fn write(&mut self, addr: VA, buf: &[u8]) -> Result<(), MMUError>

write up one one page worth of data to the given address.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_u8(&mut self, addr: VA, value: u8) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_u16(&mut self, addr: VA, value: u16) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_u32(&mut self, addr: VA, value: u32) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_u64(&mut self, addr: VA, value: u64) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_u128(&mut self, addr: VA, value: u128) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn write_page(&mut self, addr: VA, value: &[u8]) -> Result<(), MMUError>

write one page worth of data from the given page-aligned address. panics if addr is not page-aligned. panics if value is not one page in size.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.
MMUError::AccessViolation when the given address is not writable.

pub fn poke(&mut self, addr: VA, buf: &[u8]) -> Result<(), MMUError>

write up one one page worth of data to the given address. does not respect the write permission, so should not be called by instruction emulation. appropriate to be used by users of an emulator to tweak memory.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_u8(&mut self, addr: VA, value: u8) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_u16(&mut self, addr: VA, value: u16) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_u32(&mut self, addr: VA, value: u32) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_u64(&mut self, addr: VA, value: u64) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_u128(&mut self, addr: VA, value: u128) -> Result<(), MMUError>

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

pub fn poke_page(&mut self, addr: VA, value: &[u8]) -> Result<(), MMUError>

poke one page worth of data from the given page-aligned address. panics if addr is not page-aligned. panics if value is not one page in size.

Errors:

MMUError::AddressNotMapped when the given address is not mapped.

Trait Implementations§

impl Clone for MMU

fn clone(&self) -> MMU

Returns a copy of the value. Read more

1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Default for MMU

fn default() -> MMU

Returns the “default value” for a type. Read more

Auto Trait Implementations§

impl RefUnwindSafe for MMU

impl Send for MMU

impl Sync for MMU

impl Unpin for MMU

impl UnwindSafe for MMU

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