Struct kvm::Kvm

pub struct Kvm {
    pub(crate) kvm: File,
}

A wrapper around opening and using /dev/kvm.

Useful for querying extensions and basic values from the KVM backend. A Kvm is required to create a Vm object.

Fields

kvm: File

Implementations

impl Kvm

pub fn new() -> Result<Kvm>

Opens /dev/kvm and returns a Kvm object on success.

pub fn new_with_path(device_path: &Path) -> Result<Kvm>

Opens a KVM device at device_path and returns a Kvm object on success.

pub(crate) fn check_extension_int(&self, c: Cap) -> i32

pub fn check_extension(&self, c: Cap) -> bool

Checks if a particular Cap is available.

pub fn get_vcpu_mmap_size(&self) -> Result<usize>

Gets the size of the mmap required to use vcpu’s kvm_run structure.

pub(crate) fn get_cpuid(&self, kind: IoctlNr) -> Result<CpuId>

pub fn get_supported_cpuid(&self) -> Result<CpuId>

X86 specific call to get the system supported CPUID values

pub fn get_emulated_cpuid(&self) -> Result<CpuId>

X86 specific call to get the system emulated CPUID values

pub fn get_msr_index_list(&self) -> Result<Vec<u32>>

X86 specific call to get list of supported MSRS

See the documentation for KVM_GET_MSR_INDEX_LIST.

pub fn get_vm_type(&self) -> c_ulong

Trait Implementations

impl AsRawDescriptor for Kvm

fn as_raw_descriptor(&self) -> RawDescriptor

Returns the underlying raw descriptor.