Struct devices::virtio::block::DiskOption

pub struct DiskOption {

    pub path: PathBuf,
    pub read_only: bool,
    pub root: bool,
    pub sparse: bool,
    pub direct: bool,
    pub lock: bool,
    pub block_size: u32,
    pub id: Option<[u8; 20]>,
    pub multiple_workers: bool,
    pub async_executor: Option<ExecutorKind>,
    pub packed_queue: bool,
    pub bootindex: Option<usize>,
    pub pci_address: Option<PciAddress>,
}

Fields

path: PathBuf

read_only: bool

root: bool

Whether this disk should be the root device. Can only be set once. Only useful for adding specific command-line options.

sparse: bool

direct: bool

lock: bool

Whether to lock the disk files. Uses flock on Unix and FILE_SHARE_* flags on Windows.

block_size: u32

id: Option<[u8; 20]>

multiple_workers: bool

Experimental option to run multiple worker threads in parallel. If false, only single thread runs by default. Note this option is not effective for vhost-user blk device.

async_executor: Option<ExecutorKind>

The async executor kind to simulate the block device with. This option takes precedence over the async executor kind specified by the subcommand’s option. If None, the default or the specified by the subcommand’s option would be used.

packed_queue: bool

bootindex: Option<usize>

Specify the boot index for this device that the BIOS will use when attempting to boot from bootable devices. For example, if bootindex=2, then the BIOS will attempt to boot from the device right after booting from the device with bootindex=1 fails.

pci_address: Option<PciAddress>

Specify PCI address will be used to attach this device

Implementations

impl DiskOption

pub fn open(&self) -> Result<Box<dyn DiskFile>>

Open the specified disk file.

Trait Implementations

impl Clone for DiskOption

fn clone(&self) -> DiskOption

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DiskOption

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

Formats the value using the given formatter.

impl Default for DiskOption

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DiskOption

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FromArgValue for DiskOption

fn from_arg_value(value: &str) -> Result<Self, String>

Construct the type from a commandline value, returning an error string on failure.

impl PartialEq for DiskOption

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for DiskOption

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DiskOption

impl StructuralPartialEq for DiskOption