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https://github.com/cloud-hypervisor/cloud-hypervisor.git
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0249e8641a
Relying on the vm-virtio/virtio-queue crate from rust-vmm which has been copied inside the Cloud Hypervisor tree, the entire codebase is moved to the new definition of a Queue and other related structures. The reason for this move is to follow the upstream until we get some agreement for the patches that we need on top of that to make it properly work with Cloud Hypervisor. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
90 lines
2.7 KiB
Rust
90 lines
2.7 KiB
Rust
// Copyright 2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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//
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// Portions Copyright 2017 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE-BSD-3-Clause file.
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//
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// Copyright © 2019 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0 AND BSD-3-Clause
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//! Implements virtio queues
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use std::fmt;
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pub mod queue;
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pub use queue::*;
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pub const VIRTIO_MSI_NO_VECTOR: u16 = 0xffff;
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// Types taken from linux/virtio_ids.h
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#[derive(Copy, Clone, Debug)]
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#[allow(dead_code)]
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#[allow(non_camel_case_types)]
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#[repr(C)]
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pub enum VirtioDeviceType {
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Net = 1,
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Block = 2,
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Console = 3,
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Rng = 4,
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Balloon = 5,
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Fs9P = 9,
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Gpu = 16,
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Input = 18,
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Vsock = 19,
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Iommu = 23,
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Mem = 24,
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Fs = 26,
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Pmem = 27,
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Watchdog = 35, // Temporary until official number allocated
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Unknown = 0xFF,
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}
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impl From<u32> for VirtioDeviceType {
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fn from(t: u32) -> Self {
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match t {
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1 => VirtioDeviceType::Net,
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2 => VirtioDeviceType::Block,
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3 => VirtioDeviceType::Console,
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4 => VirtioDeviceType::Rng,
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5 => VirtioDeviceType::Balloon,
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9 => VirtioDeviceType::Fs9P,
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16 => VirtioDeviceType::Gpu,
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18 => VirtioDeviceType::Input,
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19 => VirtioDeviceType::Vsock,
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23 => VirtioDeviceType::Iommu,
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24 => VirtioDeviceType::Mem,
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26 => VirtioDeviceType::Fs,
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27 => VirtioDeviceType::Pmem,
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35 => VirtioDeviceType::Watchdog,
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_ => VirtioDeviceType::Unknown,
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}
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}
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}
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// In order to use the `{}` marker, the trait `fmt::Display` must be implemented
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// manually for the type VirtioDeviceType.
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impl fmt::Display for VirtioDeviceType {
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// This trait requires `fmt` with this exact signature.
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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let output = match *self {
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VirtioDeviceType::Net => "net",
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VirtioDeviceType::Block => "block",
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VirtioDeviceType::Console => "console",
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VirtioDeviceType::Rng => "rng",
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VirtioDeviceType::Balloon => "balloon",
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VirtioDeviceType::Gpu => "gpu",
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VirtioDeviceType::Fs9P => "9p",
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VirtioDeviceType::Input => "input",
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VirtioDeviceType::Vsock => "vsock",
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VirtioDeviceType::Iommu => "iommu",
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VirtioDeviceType::Mem => "mem",
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VirtioDeviceType::Fs => "fs",
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VirtioDeviceType::Pmem => "pmem",
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VirtioDeviceType::Watchdog => "watchdog",
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VirtioDeviceType::Unknown => "UNKNOWN",
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};
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write!(f, "{}", output)
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}
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}
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