Enum RootfsSource 

pub enum RootfsSource {
    Directory {
        path: PathBuf,
    },
    Ext4Disk {
        path: PathBuf,
        read_only: bool,
    },
}

Root filesystem presented to a MicroVM.

Directory roots use libkrun’s virtio-fs root transport. Ext4Disk is the guest-native path: an explicitly raw ext4 image is attached as the first virtio-blk device and becomes /dev/vda inside the guest. Keeping the disk format fixed in this typed variant prevents unsafe image-format probing after an untrusted guest has written to the image.

Variants

Directory

Host directory exported to the guest through virtio-fs.

Fields

path: PathBuf

Ext4Disk

Raw ext4 filesystem image opened directly by libkrun as virtio-blk.

Fields

path: PathBuf

read_only: bool

Implementations

impl RootfsSource

pub fn directory(path: impl Into<PathBuf>) -> RootfsSource

Construct a host-directory root exported through virtio-fs.

pub fn ext4_disk(path: impl Into<PathBuf>, read_only: bool) -> RootfsSource

Construct an explicitly raw ext4 root disk.

pub fn path(&self) -> &Path

Host path backing this root filesystem.

pub fn directory_path(&self) -> Option<&Path>

Return the host directory for operations that require direct file access.

Trait Implementations

impl Clone for RootfsSource

fn clone(&self) -> RootfsSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RootfsSource

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

Formats the value using the given formatter.

impl Default for RootfsSource

fn default() -> RootfsSource

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for RootfsSource

fn deserialize<D>( deserializer: D, ) -> Result<RootfsSource, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for RootfsSource

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

Formats the value using the given formatter.

impl Eq for RootfsSource

impl PartialEq for RootfsSource

fn eq(&self, other: &RootfsSource) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl Serialize for RootfsSource

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for RootfsSource