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runtime-rs: add basic empty boilerplate for qemu driver
This does almost literally nothing so far apart from getting and setting HypervisorConfig. It's mostly copied from/inspired by dragonball. Signed-off-by: Pavel Mores <pmores@redhat.com>
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// Copyright (c) 2022 Red Hat | ||
// | ||
// SPDX-License-Identifier: Apache-2.0 | ||
// | ||
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use anyhow::Result; | ||
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use crate::{HypervisorConfig, VcpuThreadIds}; | ||
use kata_types::capabilities::{Capabilities, CapabilityBits}; | ||
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const VSOCK_SCHEME: &str = "vsock"; | ||
const VSOCK_AGENT_CID: u32 = 3; | ||
const VSOCK_AGENT_PORT: u32 = 1024; | ||
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unsafe impl Send for QemuInner {} | ||
unsafe impl Sync for QemuInner {} | ||
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pub struct QemuInner { | ||
config: HypervisorConfig, | ||
} | ||
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impl QemuInner { | ||
pub fn new() -> QemuInner { | ||
QemuInner { | ||
config: Default::default(), | ||
} | ||
} | ||
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pub(crate) async fn prepare_vm(&mut self, _id: &str, _netns: Option<String>) -> Result<()> { | ||
info!(sl!(), "Preparing QEMU VM"); | ||
Ok(()) | ||
} | ||
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pub(crate) async fn start_vm(&mut self, _timeout: i32) -> Result<()> { | ||
info!(sl!(), "Starting QEMU VM"); | ||
Ok(()) | ||
} | ||
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pub(crate) fn stop_vm(&mut self) -> Result<()> { | ||
info!(sl!(), "Stopping QEMU VM"); | ||
todo!() | ||
} | ||
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pub(crate) fn pause_vm(&self) -> Result<()> { | ||
info!(sl!(), "Pausing QEMU VM"); | ||
todo!() | ||
} | ||
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pub(crate) fn resume_vm(&self) -> Result<()> { | ||
info!(sl!(), "Resuming QEMU VM"); | ||
todo!() | ||
} | ||
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pub(crate) async fn save_vm(&self) -> Result<()> { | ||
todo!() | ||
} | ||
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/// TODO: using a single hardcoded CID is clearly not adequate in the long | ||
/// run. Use the recently added VsockConfig infrastructure to fix this. | ||
pub(crate) async fn get_agent_socket(&self) -> Result<String> { | ||
info!(sl!(), "QemuInner::get_agent_socket()"); | ||
Ok(format!( | ||
"{}://{}:{}", | ||
VSOCK_SCHEME, VSOCK_AGENT_CID, VSOCK_AGENT_PORT | ||
)) | ||
} | ||
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pub(crate) async fn disconnect(&mut self) { | ||
info!(sl!(), "QemuInner::disconnect()"); | ||
todo!() | ||
} | ||
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pub(crate) async fn get_thread_ids(&self) -> Result<VcpuThreadIds> { | ||
info!(sl!(), "QemuInner::get_thread_ids()"); | ||
todo!() | ||
} | ||
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pub(crate) async fn cleanup(&self) -> Result<()> { | ||
info!(sl!(), "QemuInner::cleanup()"); | ||
todo!() | ||
} | ||
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pub(crate) async fn get_pids(&self) -> Result<Vec<u32>> { | ||
info!(sl!(), "QemuInner::get_pids()"); | ||
todo!() | ||
} | ||
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pub(crate) async fn check(&self) -> Result<()> { | ||
todo!() | ||
} | ||
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pub(crate) async fn get_jailer_root(&self) -> Result<String> { | ||
todo!() | ||
} | ||
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pub(crate) async fn capabilities(&self) -> Result<Capabilities> { | ||
let mut caps = Capabilities::default(); | ||
caps.set(CapabilityBits::FsSharingSupport); | ||
Ok(caps) | ||
} | ||
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pub fn set_hypervisor_config(&mut self, config: HypervisorConfig) { | ||
self.config = config; | ||
} | ||
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pub fn hypervisor_config(&self) -> HypervisorConfig { | ||
info!(sl!(), "QemuInner::hypervisor_config()"); | ||
self.config.clone() | ||
} | ||
} | ||
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use crate::device::Device; | ||
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// device manager part of Hypervisor | ||
impl QemuInner { | ||
pub(crate) async fn add_device(&mut self, device: Device) -> Result<()> { | ||
info!(sl!(), "QemuInner::add_device() {}", device); | ||
todo!() | ||
} | ||
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pub(crate) async fn remove_device(&mut self, device: Device) -> Result<()> { | ||
info!(sl!(), "QemuInner::remove_device() {} ", device); | ||
todo!() | ||
} | ||
} |
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// Copyright (c) 2022 Red Hat | ||
// | ||
// SPDX-License-Identifier: Apache-2.0 | ||
// | ||
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mod inner; | ||
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use crate::device::Device; | ||
use crate::hypervisor_persist::HypervisorState; | ||
use crate::Hypervisor; | ||
use crate::{HypervisorConfig, VcpuThreadIds}; | ||
use inner::QemuInner; | ||
use kata_types::capabilities::Capabilities; | ||
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use anyhow::Result; | ||
use async_trait::async_trait; | ||
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use std::sync::Arc; | ||
use tokio::sync::RwLock; | ||
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pub struct Qemu { | ||
inner: Arc<RwLock<QemuInner>>, | ||
} | ||
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impl Default for Qemu { | ||
fn default() -> Self { | ||
Self::new() | ||
} | ||
} | ||
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impl Qemu { | ||
pub fn new() -> Self { | ||
Self { | ||
inner: Arc::new(RwLock::new(QemuInner::new())), | ||
} | ||
} | ||
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pub async fn set_hypervisor_config(&mut self, config: HypervisorConfig) { | ||
let mut inner = self.inner.write().await; | ||
inner.set_hypervisor_config(config) | ||
} | ||
} | ||
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#[async_trait] | ||
impl Hypervisor for Qemu { | ||
async fn prepare_vm(&self, id: &str, netns: Option<String>) -> Result<()> { | ||
let mut inner = self.inner.write().await; | ||
inner.prepare_vm(id, netns).await | ||
} | ||
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async fn start_vm(&self, timeout: i32) -> Result<()> { | ||
let mut inner = self.inner.write().await; | ||
inner.start_vm(timeout).await | ||
} | ||
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async fn stop_vm(&self) -> Result<()> { | ||
let mut inner = self.inner.write().await; | ||
inner.stop_vm() | ||
} | ||
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async fn pause_vm(&self) -> Result<()> { | ||
let inner = self.inner.read().await; | ||
inner.pause_vm() | ||
} | ||
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async fn resume_vm(&self) -> Result<()> { | ||
let inner = self.inner.read().await; | ||
inner.resume_vm() | ||
} | ||
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async fn save_vm(&self) -> Result<()> { | ||
let inner = self.inner.read().await; | ||
inner.save_vm().await | ||
} | ||
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async fn add_device(&self, device: Device) -> Result<()> { | ||
let mut inner = self.inner.write().await; | ||
inner.add_device(device).await | ||
} | ||
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async fn remove_device(&self, device: Device) -> Result<()> { | ||
let mut inner = self.inner.write().await; | ||
inner.remove_device(device).await | ||
} | ||
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async fn get_agent_socket(&self) -> Result<String> { | ||
let inner = self.inner.read().await; | ||
inner.get_agent_socket().await | ||
} | ||
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async fn disconnect(&self) { | ||
let mut inner = self.inner.write().await; | ||
inner.disconnect().await | ||
} | ||
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async fn hypervisor_config(&self) -> HypervisorConfig { | ||
let inner = self.inner.read().await; | ||
inner.hypervisor_config() | ||
} | ||
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async fn get_thread_ids(&self) -> Result<VcpuThreadIds> { | ||
let inner = self.inner.read().await; | ||
inner.get_thread_ids().await | ||
} | ||
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async fn cleanup(&self) -> Result<()> { | ||
let inner = self.inner.read().await; | ||
inner.cleanup().await | ||
} | ||
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async fn get_pids(&self) -> Result<Vec<u32>> { | ||
let inner = self.inner.read().await; | ||
inner.get_pids().await | ||
} | ||
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async fn check(&self) -> Result<()> { | ||
let inner = self.inner.read().await; | ||
inner.check().await | ||
} | ||
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async fn get_jailer_root(&self) -> Result<String> { | ||
let inner = self.inner.read().await; | ||
inner.get_jailer_root().await | ||
} | ||
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async fn save_state(&self) -> Result<HypervisorState> { | ||
todo!() | ||
} | ||
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async fn capabilities(&self) -> Result<Capabilities> { | ||
let inner = self.inner.read().await; | ||
inner.capabilities().await | ||
} | ||
} |