Struct kvm_xsave2

#[repr(C)]
pub struct kvm_xsave2 {
    pub len: usize,
    pub xsave: kvm_xsave,
}

Available on crate feature fam-wrappers and x86-64 only.

Helper structure to treat post-5.17 kvm_xsave as a FamStruct.

See also: Xsave.

Fields

len: usize

The length, in units of sizeof::<__u32>(), of the FAM in kvm_xsave.

Note that KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2) returns the size of the entire kvm_xsave structure, e.g. the sum of header and FAM. Thus, this len field is equal to

(KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2) - sizeof::<kvm_xsave>()).div_ceil(sizeof::<__u32>())

xsave: kvm_xsave

Trait Implementations

impl Debug for kvm_xsave2

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

Formats the value using the given formatter.

impl Default for kvm_xsave2

fn default() -> kvm_xsave2

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for kvm_xsave2

Available on crate feature serde only.

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FamStruct for kvm_xsave2

type Entry = u32

The type of the FAM entries

fn len(&self) -> usize

Get the FAM length

unsafe fn set_len(&mut self, len: usize)

Set the FAM length

fn max_len() -> usize

Get max allowed FAM length

fn as_slice(&self) -> &[<Self as FamStruct>::Entry]

Get the FAM entries as slice

fn as_mut_slice(&mut self) -> &mut [<Self as FamStruct>::Entry]

Get the FAM entries as mut slice

impl From<kvm_xsave> for kvm_xsave2

fn from(xsave: kvm_xsave) -> Self

Converts to this type from the input type.

impl FromBytes for kvm_xsave2

where usize: FromBytes, kvm_xsave: FromBytes,

fn read_from_bytes(source: &[u8]) -> Result<Self, SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the given source.

fn read_from_prefix( source: &[u8], ) -> Result<(Self, &[u8]), SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the prefix of the given source.

fn read_from_suffix( source: &[u8], ) -> Result<(&[u8], Self), SizeError<&[u8], Self>>

where Self: Sized,

Reads a copy of Self from the suffix of the given source.

impl FromZeros for kvm_xsave2

where usize: FromZeros, kvm_xsave: FromZeros,

fn zero(&mut self)

Overwrites self with zeros.

fn new_zeroed() -> Self

where Self: Sized,

Creates an instance of Self from zeroed bytes.

impl IntoBytes for kvm_xsave2

where usize: IntoBytes, kvm_xsave: IntoBytes, (): PaddingFree<Self, { _ }>,

fn as_bytes(&self) -> &[u8]

where Self: Immutable,

Gets the bytes of this value.

fn as_mut_bytes(&mut self) -> &mut [u8]

where Self: FromBytes,

Gets the bytes of this value mutably.

fn write_to(&self, dst: &mut [u8]) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to dst.

fn write_to_prefix( &self, dst: &mut [u8], ) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to the prefix of dst.

fn write_to_suffix( &self, dst: &mut [u8], ) -> Result<(), SizeError<&Self, &mut [u8]>>

where Self: Immutable,

Writes a copy of self to the suffix of dst.

impl Serialize for kvm_xsave2

Available on crate feature serde only.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFromBytes for kvm_xsave2

where usize: TryFromBytes, kvm_xsave: TryFromBytes,

fn try_read_from_bytes( source: &[u8], ) -> Result<Self, ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read the given source as a Self.

fn try_read_from_prefix( source: &[u8], ) -> Result<(Self, &[u8]), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the prefix of the given source.

fn try_read_from_suffix( source: &[u8], ) -> Result<(&[u8], Self), ConvertError<Infallible, SizeError<&[u8], Self>, ValidityError<&[u8], Self>>>

where Self: Sized,

Attempts to read a Self from the suffix of the given source.

impl Immutable for kvm_xsave2

where usize: Immutable, kvm_xsave: Immutable,