Struct kvm_rs::UserMem

pub struct UserMem { /* private fields */ }

Expand description

Wrapper to safely allocate memory for guest VMs.

The underlying memory is freed automatically once the UserMem instance is dropped.

Memory can be mapped into a guest VM with Vm::set_user_memory_region.

Implementations

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impl UserMem

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pub fn new(len: usize) -> Result<UserMem>

Allocate a zero-initialized memory region of len bytes.

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pub fn with_init(len: usize, init_from: &[u8 ]) -> Result<UserMem>

Allocate a zero-initialized memory region of len bytes and initialize the first bytes +

Implementations

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impl UserMem

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pub fn new(len: usize) -> Result<UserMem>

Allocate a zero-initialized memory region of len bytes.

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pub fn with_init(len: usize, init_from: &[u8]) -> Result<UserMem>

Allocate a zero-initialized memory region of len bytes and initialize the first bytes with init_from.

Panics

Panics if init_from is larger than the memory size len.

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pub fn load(&mut self, addr: PhysAddr, data: &[u8 ])

Load the bytes stored in data into memory at physical address addr.

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pub fn load(&mut self, addr: PhysAddr, data: &[u8])

Load the bytes stored in data into memory at physical address addr.

Panics

Panics if addr + data.len is larger than the memory size len.

Trait Implementations

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impl AsMut<[u8 ]> for UserMem

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fn as_mut(&mut self) -> &mut [u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

Performs the conversion.

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impl AsRef<[u8 ]> for UserMem

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fn as_ref(&self) -> &[u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

Performs the conversion.

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impl Drop for UserMem

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fn drop(&mut self)

Free underlying memory.

Auto Trait Implementations

impl RefUnwindSafe for UserMem

impl !Send for UserMem

impl !Sync for UserMem

impl Unpin for UserMem

impl UnwindSafe for UserMem

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

Trait Implementations

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impl AsMut<[u8]> for UserMem

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fn as_mut(&mut self) -> &mut [u8]ⓘNotable traits for &[u8]`impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]`

Converts this type into a mutable reference of the (usually inferred) input type.

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impl AsRef<[u8]> for UserMem

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fn as_ref(&self) -> &[u8]ⓘNotable traits for &[u8]`impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]`

Converts this type into a shared reference of the (usually inferred) input type.

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impl Drop for UserMem

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fn drop(&mut self)

Free underlying memory.

Auto Trait Implementations

impl RefUnwindSafe for UserMem

impl !Send for UserMem

impl !Sync for UserMem

impl Unpin for UserMem

impl UnwindSafe for UserMem

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of -From<T> for U chooses to do.

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct kvm_rs::UserMem

Implementations

impl UserMem

pub fn new(len: usize) -> Result<UserMem>

pub fn with_init(len: usize, init_from: &[u8]) -> Result<UserMem>

Implementations

impl UserMem

pub fn new(len: usize) -> Result<UserMem>

pub fn with_init(len: usize, init_from: &[u8]) -> Result<UserMem>

pub fn load(&mut self, addr: PhysAddr, data: &[u8])

pub fn load(&mut self, addr: PhysAddr, data: &[u8])

Trait Implementations

impl AsMut<[u8]> for UserMem

fn as_mut(&mut self) -> &mut [u8]ⓘNotable traits for &'_ mut [u8]impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]

impl AsRef<[u8]> for UserMem

fn as_ref(&self) -> &[u8]ⓘNotable traits for &'_ mut [u8]impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]

impl Drop for UserMem

fn drop(&mut self)

Auto Trait Implementations

impl RefUnwindSafe for UserMem

impl !Send for UserMem

impl !Sync for UserMem

impl Unpin for UserMem

impl UnwindSafe for UserMem

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

Trait Implementations

impl AsMut<[u8]> for UserMem

fn as_mut(&mut self) -> &mut [u8]ⓘNotable traits for &[u8]impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]

impl AsRef<[u8]> for UserMem

fn as_ref(&self) -> &[u8]ⓘNotable traits for &[u8]impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]

impl Drop for UserMem

fn drop(&mut self)

Auto Trait Implementations

impl RefUnwindSafe for UserMem

impl !Send for UserMem

impl !Sync for UserMem

impl Unpin for UserMem

impl UnwindSafe for UserMem

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn with_init(len: usize, init_from: &[u8 ]) -> Result<UserMem>

pub fn load(&mut self, addr: PhysAddr, data: &[u8 ])

impl AsMut<[u8 ]> for UserMem

fn as_mut(&mut self) -> &mut [u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

impl AsRef<[u8 ]> for UserMem

fn as_ref(&self) -> &[u8 ]ⓘNotable traits for &'_ mut [u8 ]`impl<'_> Write for &'_ mut [u8]impl<'_> Read for &'_ [u8]`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

fn as_mut(&mut self) -> &mut [u8]ⓘNotable traits for &[u8]`impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]`

fn as_ref(&self) -> &[u8]ⓘNotable traits for &[u8]`impl<'_> Read for &[u8]impl<'_> Write for &mut [u8]`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,