Enum PagerError 

pub enum PagerError {
    OutOfRegion {
        ipa: u64,
    },
    Source(PageSourceError),
    Mach(String),
    Spawn(Error),
}

Errors produced by the pager.

Variants

OutOfRegion

The IPA the host requested falls outside any registered postcopy region.

Fields

ipa: u64

The requested IPA.

Source(PageSourceError)

The page source surfaced an error.

Mach(String)

Mach-side error (always opaque; the OS surfaces these via kern_return_t).

Spawn(Error)

pthread_create / thread::Builder::spawn failed, typically with EAGAIN (per-process thread limit reached). DoS-relevant on a multi-VM host.

Trait Implementations

impl Debug for PagerError

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

Formats the value using the given formatter.

impl Display for PagerError

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

Formats the value using the given formatter.

impl Error for PagerError

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

Returns 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, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<PageSourceError> for PagerError

fn from(source: PageSourceError) -> Self

Converts to this type from the input type.