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// Copyright 2017 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//! Implements vhost-based virtio devices.
use std;
use net_util::Error as TapError;
use sys_util::Error as SysError;
use vhost::Error as VhostError;
mod net;
mod vsock;
mod worker;
pub use self::net::Net;
pub use self::vsock::Vsock;
#[derive(Debug)]
pub enum Error {
/// Creating kill eventfd failed.
CreateKillEventFd(SysError),
/// Creating poll context failed.
CreatePollContext(SysError),
/// Cloning kill eventfd failed.
CloneKillEventFd(SysError),
/// Error while polling for events.
PollError(SysError),
/// Open tap device failed.
TapOpen(TapError),
/// Setting tap IP failed.
TapSetIp(TapError),
/// Setting tap netmask failed.
TapSetNetmask(TapError),
/// Setting tap mac address failed.
TapSetMacAddress(TapError),
/// Setting tap interface offload flags failed.
TapSetOffload(TapError),
/// Setting vnet header size failed.
TapSetVnetHdrSize(TapError),
/// Enabling tap interface failed.
TapEnable(TapError),
/// Failed to open vhost device.
VhostOpen(VhostError),
/// Set owner failed.
VhostSetOwner(VhostError),
/// Get features failed.
VhostGetFeatures(VhostError),
/// Set features failed.
VhostSetFeatures(VhostError),
/// Set mem table failed.
VhostSetMemTable(VhostError),
/// Set vring num failed.
VhostSetVringNum(VhostError),
/// Set vring addr failed.
VhostSetVringAddr(VhostError),
/// Set vring base failed.
VhostSetVringBase(VhostError),
/// Set vring call failed.
VhostSetVringCall(VhostError),
/// Set vring kick failed.
VhostSetVringKick(VhostError),
/// Net set backend failed.
VhostNetSetBackend(VhostError),
/// Failed to set CID for guest.
VhostVsockSetCid(VhostError),
/// Failed to start vhost-vsock driver.
VhostVsockStart(VhostError),
/// Failed to create vhost eventfd.
VhostIrqCreate(SysError),
/// Failed to read vhost eventfd.
VhostIrqRead(SysError),
}
pub type Result<T> = std::result::Result<T, Error>;
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