Enum dbs_virtio_devices::Error

pub enum Error {
    DescriptorChainTooShort,
    DescriptorLengthTooSmall,
    DescriptorLengthTooBig,
    UnexpectedWriteOnlyDescriptor,
    UnexpectedReadOnlyDescriptor,
    InvalidInput,
    InvalidOffset,
    InternalError,
    InvalidResource,
    IOError(IOError),
    VirtioQueueError(VqError),
    ActivateError(ActivateError),
    InterruptError(IOError),
    GuestMemory(GuestMemoryError),
    InvalidGuestAddress(GuestAddress),
    NewMmapRegion(MmapRegionError),
    SetUserMemoryRegion(Error),
    InsertMmap(Error),
    Madvise(Error),
}

Error for virtio devices to handle requests from guests.

Variants

DescriptorChainTooShort

Guest gave us too few descriptors in a descriptor chain.

DescriptorLengthTooSmall

Guest gave us a descriptor that was too short to use.

DescriptorLengthTooBig

Guest gave us a descriptor that was too big to use.

UnexpectedWriteOnlyDescriptor

Guest gave us a write only descriptor that protocol says to read from.

UnexpectedReadOnlyDescriptor

Guest gave us a read only descriptor that protocol says to write to.

InvalidInput

Invalid input parameter or status.

InvalidOffset

The requested operation would cause a seek beyond disk end.

InternalError

Internal unspecific error

InvalidResource

Device resource doesn’t match what requested

IOError(IOError)

Generic IO error

VirtioQueueError(VqError)

Error from virtio_queue

ActivateError(ActivateError)

Error from Device activate.

InterruptError(IOError)

Error from Interrupt.

GuestMemory(GuestMemoryError)

Guest gave us bad memory addresses.

InvalidGuestAddress(GuestAddress)

Guest gave us an invalid guest memory address.

NewMmapRegion(MmapRegionError)

Failed creating a new MmapRegion instance.

SetUserMemoryRegion(Error)

Failed setting kvm user memory region.

InsertMmap(Error)

Inserting mmap region failed.

Madvise(Error)

Failed to set madvise on guest memory region.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl From<ActivateError> for Error

fn from(source: ActivateError) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: VqError) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: IOError) -> Self

Converts to this type from the input type.