// Copyright © 2020 Intel Corporation // // SPDX-License-Identifier: Apache-2.0 // #[cfg(test)] #[cfg(feature = "integration_tests")] #[macro_use] extern crate credibility; #[cfg(test)] #[cfg(feature = "integration_tests")] #[macro_use] extern crate lazy_static; #[cfg(test)] #[cfg(feature = "integration_tests")] mod tests { #![allow(dead_code)] use net_util::MacAddr; use ssh2::Session; use std::collections::HashMap; use std::env; use std::ffi::OsStr; use std::fs; use std::io; use std::io::BufRead; use std::io::{Read, Write}; use std::net::TcpStream; use std::path::Path; use std::process::{Child, Command, Stdio}; use std::string::String; use std::sync::Mutex; use std::thread; use tempdir::TempDir; use tempfile::NamedTempFile; lazy_static! { static ref NEXT_VM_ID: Mutex = Mutex::new(1); } struct GuestNetworkConfig { guest_ip: String, l2_guest_ip1: String, l2_guest_ip2: String, l2_guest_ip3: String, host_ip: String, guest_mac: String, l2_guest_mac1: String, l2_guest_mac2: String, l2_guest_mac3: String, } struct Guest<'a> { tmp_dir: TempDir, disk_config: &'a dyn DiskConfig, fw_path: String, network: GuestNetworkConfig, } // Safe to implement as we know we have no interior mutability impl<'a> std::panic::RefUnwindSafe for Guest<'a> {} enum DiskType { OperatingSystem, RawOperatingSystem, CloudInit, } trait DiskConfig { fn prepare_files(&mut self, tmp_dir: &TempDir, network: &GuestNetworkConfig); fn prepare_cloudinit(&self, tmp_dir: &TempDir, network: &GuestNetworkConfig) -> String; fn disk(&self, disk_type: DiskType) -> Option; } struct UbuntuDiskConfig { osdisk_path: String, osdisk_raw_path: String, cloudinit_path: String, image_name: String, } #[cfg(target_arch = "x86_64")] const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-amd64"; #[cfg(target_arch = "x86_64")] const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-custom"; #[cfg(target_arch = "aarch64")] const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-arm64"; #[cfg(target_arch = "aarch64")] const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-arm64"; #[cfg(target_arch = "aarch64")] const ARM64_KERNEL_CMDLINE: &str = "keep_bootcon console=hvc0 reboot=k panic=1 pci=off root=/dev/vdb1 rw"; const DIRECT_KERNEL_BOOT_CMDLINE: &str = "root=/dev/vda1 console=ttyS0 console=hvc0 quiet rw"; impl UbuntuDiskConfig { fn new(image_name: String) -> Self { UbuntuDiskConfig { image_name, osdisk_path: String::new(), osdisk_raw_path: String::new(), cloudinit_path: String::new(), } } } fn rate_limited_copy, Q: AsRef>(from: P, to: Q) -> io::Result { for i in 0..10 { let free_bytes = unsafe { let mut stats = std::mem::MaybeUninit::zeroed(); let fs_name = std::ffi::CString::new("/tmp").unwrap(); libc::statvfs(fs_name.as_ptr(), stats.as_mut_ptr()); let free_blocks = stats.assume_init().f_bfree; let block_size = stats.assume_init().f_bsize; free_blocks * block_size }; // Make sure there is at least 6 GiB of space if free_bytes < 6 << 30 { eprintln!( "Not enough space on disk ({}). Attempt {} of 10. Sleeping.", free_bytes, i ); thread::sleep(std::time::Duration::new(60, 0)); continue; } match fs::copy(&from, &to) { Err(e) => { if let Some(errno) = e.raw_os_error() { if errno == libc::ENOSPC { eprintln!("Copy returned ENOSPC. Attempt {} of 10. Sleeping.", i); thread::sleep(std::time::Duration::new(60, 0)); continue; } } return Err(e); } Ok(i) => return Ok(i), } } Err(io::Error::last_os_error()) } fn clh_command(cmd: &str) -> String { env::var("BUILD_TARGET").map_or( format!("target/x86_64-unknown-linux-gnu/release/{}", cmd), |target| format!("target/{}/release/{}", target, cmd), ) } impl DiskConfig for UbuntuDiskConfig { fn prepare_cloudinit(&self, tmp_dir: &TempDir, network: &GuestNetworkConfig) -> String { let cloudinit_file_path = String::from(tmp_dir.path().join("cloudinit").to_str().unwrap()); let cloud_init_directory = tmp_dir.path().join("cloud-init").join("ubuntu"); fs::create_dir_all(&cloud_init_directory) .expect("Expect creating cloud-init directory to succeed"); let source_file_dir = std::env::current_dir() .unwrap() .join("test_data") .join("cloud-init") .join("ubuntu"); vec!["meta-data", "user-data"].iter().for_each(|x| { rate_limited_copy(source_file_dir.join(x), cloud_init_directory.join(x)) .expect("Expect copying cloud-init meta-data to succeed"); }); let mut network_config_string = String::new(); fs::File::open(source_file_dir.join("network-config")) .unwrap() .read_to_string(&mut network_config_string) .expect("Expected reading network-config file in to succeed"); network_config_string = network_config_string.replace("192.168.2.1", &network.host_ip); network_config_string = network_config_string.replace("192.168.2.2", &network.guest_ip); network_config_string = network_config_string.replace("192.168.2.3", &network.l2_guest_ip1); network_config_string = network_config_string.replace("192.168.2.4", &network.l2_guest_ip2); network_config_string = network_config_string.replace("192.168.2.5", &network.l2_guest_ip3); network_config_string = network_config_string.replace("12:34:56:78:90:ab", &network.guest_mac); network_config_string = network_config_string.replace("de:ad:be:ef:12:34", &network.l2_guest_mac1); network_config_string = network_config_string.replace("de:ad:be:ef:34:56", &network.l2_guest_mac2); network_config_string = network_config_string.replace("de:ad:be:ef:56:78", &network.l2_guest_mac3); fs::File::create(cloud_init_directory.join("network-config")) .unwrap() .write_all(&network_config_string.as_bytes()) .expect("Expected writing out network-config to succeed"); std::process::Command::new("mkdosfs") .args(&["-n", "cidata"]) .args(&["-C", cloudinit_file_path.as_str()]) .arg("8192") .output() .expect("Expect creating disk image to succeed"); vec!["user-data", "meta-data", "network-config"] .iter() .for_each(|x| { std::process::Command::new("mcopy") .arg("-o") .args(&["-i", cloudinit_file_path.as_str()]) .args(&["-s", cloud_init_directory.join(x).to_str().unwrap(), "::"]) .output() .expect("Expect copying files to disk image to succeed"); }); cloudinit_file_path } fn prepare_files(&mut self, tmp_dir: &TempDir, network: &GuestNetworkConfig) { let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let image_name = format!("{}.qcow2", self.image_name); let raw_image_name = format!("{}.raw", self.image_name); let mut osdisk_base_path = workload_path.clone(); osdisk_base_path.push(&image_name); let mut osdisk_raw_base_path = workload_path; osdisk_raw_base_path.push(&raw_image_name); let osdisk_path = String::from(tmp_dir.path().join("osdisk.img").to_str().unwrap()); let osdisk_raw_path = String::from(tmp_dir.path().join("osdisk_raw.img").to_str().unwrap()); let cloudinit_path = self.prepare_cloudinit(tmp_dir, network); rate_limited_copy(osdisk_base_path, &osdisk_path) .expect("copying of OS source disk image failed"); rate_limited_copy(osdisk_raw_base_path, &osdisk_raw_path) .expect("copying of OS source disk raw image failed"); self.cloudinit_path = cloudinit_path; self.osdisk_path = osdisk_path; self.osdisk_raw_path = osdisk_raw_path; } fn disk(&self, disk_type: DiskType) -> Option { match disk_type { DiskType::OperatingSystem => Some(self.osdisk_path.clone()), DiskType::RawOperatingSystem => Some(self.osdisk_raw_path.clone()), DiskType::CloudInit => Some(self.cloudinit_path.clone()), } } } fn prepare_virtiofsd( tmp_dir: &TempDir, shared_dir: &str, cache: &str, ) -> (std::process::Child, String) { let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut virtiofsd_path = workload_path; virtiofsd_path.push("virtiofsd"); let virtiofsd_path = String::from(virtiofsd_path.to_str().unwrap()); let virtiofsd_socket_path = String::from(tmp_dir.path().join("virtiofs.sock").to_str().unwrap()); // Start the daemon let child = Command::new(virtiofsd_path.as_str()) .args(&[format!("--socket-path={}", virtiofsd_socket_path).as_str()]) .args(&["-o", format!("source={}", shared_dir).as_str()]) .args(&["-o", format!("cache={}", cache).as_str()]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(10, 0)); (child, virtiofsd_socket_path) } fn prepare_vhost_user_fs_daemon( tmp_dir: &TempDir, shared_dir: &str, _cache: &str, ) -> (std::process::Child, String) { let virtiofsd_socket_path = String::from(tmp_dir.path().join("virtiofs.sock").to_str().unwrap()); // Start the daemon let child = Command::new(clh_command("vhost_user_fs")) .args(&["--shared-dir", shared_dir]) .args(&["--socket", virtiofsd_socket_path.as_str()]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(10, 0)); (child, virtiofsd_socket_path) } fn prepare_vubd( tmp_dir: &TempDir, blk_img: &str, num_queues: usize, rdonly: bool, direct: bool, ) -> (std::process::Child, String) { let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut blk_file_path = workload_path; blk_file_path.push(blk_img); let blk_file_path = String::from(blk_file_path.to_str().unwrap()); let vubd_socket_path = String::from(tmp_dir.path().join("vub.sock").to_str().unwrap()); // Start the daemon let child = Command::new(clh_command("cloud-hypervisor")) .args(&[ "--block-backend", format!( "path={},socket={},num_queues={},readonly={},direct={}", blk_file_path, vubd_socket_path, num_queues, rdonly, direct ) .as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(10, 0)); (child, vubd_socket_path) } fn temp_vsock_path(tmp_dir: &TempDir) -> String { String::from(tmp_dir.path().join("vsock").to_str().unwrap()) } fn temp_api_path(tmp_dir: &TempDir) -> String { String::from( tmp_dir .path() .join("cloud-hypervisor.sock") .to_str() .unwrap(), ) } // Creates the directory and returns the path. fn temp_snapshot_dir_path(tmp_dir: &TempDir) -> String { let snapshot_dir = String::from(tmp_dir.path().join("snapshot").to_str().unwrap()); std::fs::create_dir(&snapshot_dir).unwrap(); snapshot_dir } fn prepare_vhost_user_net_daemon( tmp_dir: &TempDir, ip: &str, tap: Option<&str>, num_queues: usize, ) -> (std::process::Child, String) { let vunet_socket_path = String::from(tmp_dir.path().join("vunet.sock").to_str().unwrap()); // Start the daemon let net_params = if let Some(tap_str) = tap { format!( "tap={},ip={},mask=255.255.255.0,socket={},num_queues={},queue_size=1024", tap_str, ip, vunet_socket_path, num_queues ) } else { format!( "ip={},mask=255.255.255.0,socket={},num_queues={},queue_size=1024", ip, vunet_socket_path, num_queues ) }; let child = Command::new(clh_command("cloud-hypervisor")) .args(&["--net-backend", net_params.as_str()]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(10, 0)); (child, vunet_socket_path) } fn curl_command(api_socket: &str, method: &str, url: &str, http_body: Option<&str>) { let mut curl_args: Vec<&str> = ["--unix-socket", api_socket, "-i", "-X", method, url].to_vec(); if let Some(body) = http_body { curl_args.push("-H"); curl_args.push("Accept: application/json"); curl_args.push("-H"); curl_args.push("Content-Type: application/json"); curl_args.push("-d"); curl_args.push(body); } let status = Command::new("curl") .args(curl_args) .status() .expect("Failed to launch curl command"); assert!(status.success()); } fn remote_command(api_socket: &str, command: &str, arg: Option<&str>) -> bool { let mut cmd = Command::new(clh_command("ch-remote")); cmd.args(&[&format!("--api-socket={}", api_socket), command]); if let Some(arg) = arg { cmd.arg(arg); } cmd.status().expect("Failed to launch ch-remote").success() } fn remote_command_w_output( api_socket: &str, command: &str, arg: Option<&str>, ) -> (bool, Vec) { let mut cmd = Command::new(clh_command("ch-remote")); cmd.args(&[&format!("--api-socket={}", api_socket), command]); if let Some(arg) = arg { cmd.arg(arg); } let output = cmd.output().expect("Failed to launch ch-remote"); (output.status.success(), output.stdout) } fn resize_command( api_socket: &str, desired_vcpus: Option, desired_ram: Option, desired_ram_w_balloon: Option, ) -> bool { let mut cmd = Command::new(clh_command("ch-remote")); cmd.args(&[&format!("--api-socket={}", api_socket), "resize"]); if let Some(desired_vcpus) = desired_vcpus { cmd.arg(format!("--cpus={}", desired_vcpus)); } if let Some(desired_ram) = desired_ram { cmd.arg(format!("--memory={}", desired_ram)); } if let Some(desired_ram_w_balloon) = desired_ram_w_balloon { cmd.arg(format!("--balloon={}", desired_ram_w_balloon)); } cmd.status().expect("Failed to launch ch-remote").success() } const DEFAULT_SSH_RETRIES: u8 = 6; const DEFAULT_SSH_TIMEOUT: u8 = 10; fn ssh_command_ip(command: &str, ip: &str, retries: u8, timeout: u8) -> Result { let mut s = String::new(); let mut counter = 0; loop { match (|| -> Result<(), Error> { let tcp = TcpStream::connect(format!("{}:22", ip)).map_err(Error::Connection)?; let mut sess = Session::new().unwrap(); sess.set_tcp_stream(tcp); sess.handshake().map_err(Error::Handshake)?; sess.userauth_password("cloud", "cloud123") .map_err(Error::Authentication)?; assert!(sess.authenticated()); let mut channel = sess.channel_session().map_err(Error::ChannelSession)?; channel.exec(command).map_err(Error::Command)?; // Intentionally ignore these results here as their failure // does not precipitate a repeat let _ = channel.read_to_string(&mut s); let _ = channel.close(); let _ = channel.wait_close(); Ok(()) })() { Ok(_) => break, Err(e) => { counter += 1; if counter >= retries { return Err(e); } } }; thread::sleep(std::time::Duration::new((timeout * counter).into(), 0)); } Ok(s) } #[derive(Debug)] enum Error { Connection(std::io::Error), Handshake(ssh2::Error), Authentication(ssh2::Error), ChannelSession(ssh2::Error), Command(ssh2::Error), Parsing(std::num::ParseIntError), } impl std::error::Error for Error {} impl std::fmt::Display for Error { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!(f, "{:?}", self) } } impl<'a> Guest<'a> { fn new_from_ip_range(disk_config: &'a mut dyn DiskConfig, class: &str, id: u8) -> Self { let tmp_dir = TempDir::new("ch").unwrap(); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut fw_path = workload_path; fw_path.push("hypervisor-fw"); let fw_path = String::from(fw_path.to_str().unwrap()); let network = GuestNetworkConfig { guest_ip: format!("{}.{}.2", class, id), l2_guest_ip1: format!("{}.{}.3", class, id), l2_guest_ip2: format!("{}.{}.4", class, id), l2_guest_ip3: format!("{}.{}.5", class, id), host_ip: format!("{}.{}.1", class, id), guest_mac: format!("12:34:56:78:90:{:02x}", id), l2_guest_mac1: format!("de:ad:be:ef:12:{:02x}", id), l2_guest_mac2: format!("de:ad:be:ef:34:{:02x}", id), l2_guest_mac3: format!("de:ad:be:ef:56:{:02x}", id), }; disk_config.prepare_files(&tmp_dir, &network); Guest { tmp_dir, disk_config, fw_path, network, } } fn new(disk_config: &'a mut dyn DiskConfig) -> Self { let mut guard = NEXT_VM_ID.lock().unwrap(); let id = *guard; *guard = id + 1; Self::new_from_ip_range(disk_config, "192.168", id) } fn default_net_string(&self) -> String { format!( "tap=,mac={},ip={},mask=255.255.255.0", self.network.guest_mac, self.network.host_ip ) } fn default_net_string_w_iommu(&self) -> String { format!( "tap=,mac={},ip={},mask=255.255.255.0,iommu=on", self.network.guest_mac, self.network.host_ip ) } fn ssh_command(&self, command: &str) -> Result { ssh_command_ip( command, &self.network.guest_ip, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT, ) } fn ssh_command_l1(&self, command: &str) -> Result { ssh_command_ip( command, &self.network.guest_ip, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT, ) } fn ssh_command_l2_1(&self, command: &str) -> Result { ssh_command_ip( command, &self.network.l2_guest_ip1, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT, ) } fn ssh_command_l2_2(&self, command: &str) -> Result { ssh_command_ip( command, &self.network.l2_guest_ip2, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT, ) } fn ssh_command_l2_3(&self, command: &str) -> Result { ssh_command_ip( command, &self.network.l2_guest_ip3, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT, ) } fn api_create_body(&self, cpu_count: u8) -> String { format! {"{{\"cpus\":{{\"boot_vcpus\":{},\"max_vcpus\":{}}},\"kernel\":{{\"path\":\"{}\"}},\"cmdline\":{{\"args\": \"\"}},\"net\":[{{\"ip\":\"{}\", \"mask\":\"255.255.255.0\", \"mac\":\"{}\"}}], \"disks\":[{{\"path\":\"{}\"}}, {{\"path\":\"{}\"}}]}}", cpu_count, cpu_count, self.fw_path.as_str(), self.network.host_ip, self.network.guest_mac, self.disk_config.disk(DiskType::OperatingSystem).unwrap().as_str(), self.disk_config.disk(DiskType::CloudInit).unwrap().as_str(), } } fn get_cpu_count(&self) -> Result { Ok(self .ssh_command("grep -c processor /proc/cpuinfo")? .trim() .parse() .map_err(Error::Parsing)?) } fn get_initial_apicid(&self) -> Result { Ok(self .ssh_command("grep \"initial apicid\" /proc/cpuinfo | grep -o \"[0-9]*\"")? .trim() .parse() .map_err(Error::Parsing)?) } fn get_total_memory(&self) -> Result { Ok(self .ssh_command("grep MemTotal /proc/meminfo | grep -o \"[0-9]*\"")? .trim() .parse() .map_err(Error::Parsing)?) } fn get_total_memory_l2(&self) -> Result { Ok(self .ssh_command_l2_1("grep MemTotal /proc/meminfo | grep -o \"[0-9]*\"")? .trim() .parse() .map_err(Error::Parsing)?) } fn get_entropy(&self) -> Result { Ok(self .ssh_command("cat /proc/sys/kernel/random/entropy_avail")? .trim() .parse() .map_err(Error::Parsing)?) } fn get_pci_bridge_class(&self) -> Result { Ok(self .ssh_command("cat /sys/bus/pci/devices/0000:00:00.0/class")? .trim() .to_string()) } fn get_pci_device_ids(&self) -> Result { Ok(self .ssh_command("cat /sys/bus/pci/devices/*/device")? .trim() .to_string()) } fn get_pci_vendor_ids(&self) -> Result { Ok(self .ssh_command("cat /sys/bus/pci/devices/*/vendor")? .trim() .to_string()) } fn does_device_vendor_pair_match( &self, device_id: &str, vendor_id: &str, ) -> Result { // We are checking if console device's device id and vendor id pair matches let devices = self.get_pci_device_ids()?; let devices: Vec<&str> = devices.split('\n').collect(); let vendors = self.get_pci_vendor_ids()?; let vendors: Vec<&str> = vendors.split('\n').collect(); for (index, d_id) in devices.iter().enumerate() { if *d_id == device_id { if let Some(v_id) = vendors.get(index) { if *v_id == vendor_id { return Ok(true); } } } } Ok(false) } fn valid_virtio_fs_cache_size( &self, dax: bool, cache_size: Option, ) -> Result { let shm_region = self .ssh_command("sudo grep virtio-pci-shm /proc/iomem")? .trim() .to_string(); if shm_region.is_empty() { return Ok(!dax); } // From this point, the region is not empty, hence it is an error // if DAX is off. if !dax { return Ok(false); } let cache = if let Some(cache) = cache_size { cache } else { // 8Gib by default 0x0002_0000_0000 }; let args: Vec<&str> = shm_region.split(':').collect(); if args.is_empty() { return Ok(false); } let args: Vec<&str> = args[0].trim().split('-').collect(); if args.len() != 2 { return Ok(false); } let start_addr = u64::from_str_radix(args[0], 16).map_err(Error::Parsing)?; let end_addr = u64::from_str_radix(args[1], 16).map_err(Error::Parsing)?; Ok(cache == (end_addr - start_addr + 1)) } fn check_vsock(&self, socket: &str) { // Listen from guest on vsock CID=3 PORT=16 // SOCKET-LISTEN::: let guest_ip = self.network.guest_ip.clone(); let listen_socat = thread::spawn(move || { ssh_command_ip("sudo socat - SOCKET-LISTEN:40:0:x00x00x10x00x00x00x03x00x00x00x00x00x00x00 > vsock_log", &guest_ip, DEFAULT_SSH_RETRIES, DEFAULT_SSH_TIMEOUT).unwrap(); }); // Make sure socat is listening, which might take a few second on slow systems thread::sleep(std::time::Duration::new(10, 0)); // Write something to vsock from the host Command::new("bash") .arg("-c") .arg( format!( "echo -e \"CONNECT 16\\nHelloWorld!\" | socat - UNIX-CONNECT:{}", socket ) .as_str(), ) .output() .unwrap(); // Wait for the thread to terminate. listen_socat.join().unwrap(); assert_eq!( self.ssh_command("cat vsock_log").unwrap().trim(), "HelloWorld!" ); } } struct GuestCommand<'a> { command: Command, guest: &'a Guest<'a>, capture_output: bool, } impl<'a> GuestCommand<'a> { fn new(guest: &'a Guest) -> Self { Self::new_with_binary_name(guest, "cloud-hypervisor") } fn new_with_binary_name(guest: &'a Guest, binary_name: &str) -> Self { Self { command: Command::new(clh_command(binary_name)), guest, capture_output: false, } } fn capture_output(&mut self) -> &mut Self { self.capture_output = true; self } fn spawn(&mut self) -> io::Result { if self.capture_output { self.command .stderr(Stdio::piped()) .stdout(Stdio::piped()) .spawn() } else { self.command.spawn() } } fn args(&mut self, args: I) -> &mut Self where I: IntoIterator, S: AsRef, { self.command.args(args); self } fn default_disks(&mut self) -> &mut Self { self.args(&[ "--disk", format!( "path={}", self.guest .disk_config .disk(DiskType::OperatingSystem) .unwrap() ) .as_str(), format!( "path={}", self.guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), ]) } fn default_raw_disks(&mut self) -> &mut Self { self.args(&[ "--disk", format!( "path={}", self.guest .disk_config .disk(DiskType::RawOperatingSystem) .unwrap() ) .as_str(), format!( "path={}", self.guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), ]) } fn default_net(&mut self) -> &mut Self { self.args(&["--net", self.guest.default_net_string().as_str()]) } } fn test_cpu_topology(threads_per_core: u8, cores_per_package: u8, packages: u8) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let total_vcpus = threads_per_core * cores_per_package * packages; let mut child = GuestCommand::new(&guest) .args(&[ "--cpus", &format!( "boot={},topology={}:{}:1:{}", total_vcpus, threads_per_core, cores_per_package, packages ), ]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(total_vcpus) ); aver_eq!( tb, guest .ssh_command("lscpu | grep \"per core\" | cut -f 2 -d \":\" | sed \"s# *##\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(0), threads_per_core ); aver_eq!( tb, guest .ssh_command("lscpu | grep \"per socket\" | cut -f 2 -d \":\" | sed \"s# *##\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(0), cores_per_package ); aver_eq!( tb, guest .ssh_command("lscpu | grep \"Socket\" | cut -f 2 -d \":\" | sed \"s# *##\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(0), packages ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } type PrepareNetDaemon = dyn Fn(&TempDir, &str, Option<&str>, usize) -> (std::process::Child, String); fn test_vhost_user_net( tap: Option<&str>, num_queues: usize, prepare_vhost_user_net_daemon: Option<&PrepareNetDaemon>, self_spawned: bool, generate_host_mac: bool, ) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let host_mac = if generate_host_mac { Some(MacAddr::local_random()) } else { None }; let (net_params, daemon_child) = if self_spawned { ( format!( "vhost_user=true,mac={},ip={},mask=255.255.255.0,num_queues={},queue_size=1024{}", guest.network.guest_mac, guest.network.host_ip, num_queues, if let Some(host_mac) =host_mac { format!(",host_mac={}", host_mac) } else { "".to_owned() } ), None, ) } else { let prepare_daemon = prepare_vhost_user_net_daemon.unwrap(); // Start the daemon let (daemon_child, vunet_socket_path) = prepare_daemon(&guest.tmp_dir, &guest.network.host_ip, tap, num_queues); ( format!( "vhost_user=true,mac={},socket={},num_queues={},queue_size=1024{}", guest.network.guest_mac, vunet_socket_path, num_queues, if let Some(host_mac) = host_mac { format!(",host_mac={}", host_mac) } else { "".to_owned() } ), Some(daemon_child), ) }; let mut cloud_child = GuestCommand::new(&guest) .args(&["--cpus", format!("boot={}", num_queues / 2).as_str()]) .args(&["--memory", "size=512M,hotplug_size=2048M,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .args(&["--net", net_params.as_str()]) .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); if let Some(tap_name) = tap { let tap_count = std::process::Command::new("bash") .arg("-c") .arg(format!("ip link | grep -c {}", tap_name)) .output() .expect("Expected checking of tap count to succeed"); aver_eq!(tb, String::from_utf8_lossy(&tap_count.stdout).trim(), "1"); } if let Some(host_mac) = tap { let mac_count = std::process::Command::new("bash") .arg("-c") .arg(format!("ip link | grep -c {}", host_mac)) .output() .expect("Expected checking of host mac to succeed"); aver_eq!(tb, String::from_utf8_lossy(&mac_count.stdout).trim(), "1"); } // 1 network interface + default localhost ==> 2 interfaces // It's important to note that this test is fully exercising the // vhost-user-net implementation and the associated backend since // it does not define any --net network interface. That means all // the ssh communication in that test happens through the network // interface backed by vhost-user-net. aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 2 ); // The following pci devices will appear on guest with PCI-MSI // interrupt vectors assigned. // 1 virtio-console with 3 vectors: config, Rx, Tx // 1 virtio-blk with 2 vectors: config, Request // 1 virtio-blk with 2 vectors: config, Request // 1 virtio-rng with 2 vectors: config, Request // Since virtio-net has 2 queue pairs, its vectors is as follows: // 1 virtio-net with 5 vectors: config, Rx (2), Tx (2) // Based on the above, the total vectors should 14. // This is a PCI only feature. #[cfg(not(feature = "mmio"))] aver_eq!( tb, guest .ssh_command("grep -c PCI-MSI /proc/interrupts") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 10 + (num_queues as u32) ); // ACPI is not built with mmio, hence we can't test the resize // feature for mmio. #[cfg(not(feature = "mmio"))] { guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); // Here by simply checking the size (through ssh), we validate // the connection is still working, which means vhost-user-net // keeps working after the resize. aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); } let _ = cloud_child.kill(); let _ = cloud_child.wait(); if let Some(mut daemon_child) = daemon_child { thread::sleep(std::time::Duration::new(5, 0)); let _ = daemon_child.kill(); let _ = daemon_child.wait(); } Ok(()) }); } type PrepareBlkDaemon = dyn Fn(&TempDir, &str, usize, bool, bool) -> (std::process::Child, String); fn test_vhost_user_blk( num_queues: usize, readonly: bool, direct: bool, prepare_vhost_user_blk_daemon: Option<&PrepareBlkDaemon>, self_spawned: bool, ) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path.clone(); kernel_path.push("vmlinux"); let (blk_params, daemon_child) = if self_spawned { let mut blk_file_path = workload_path; blk_file_path.push("blk.img"); let blk_file_path = String::from(blk_file_path.to_str().unwrap()); ( format!( "vhost_user=true,path={},num_queues={},queue_size=128", blk_file_path, num_queues, ), None, ) } else { let prepare_daemon = prepare_vhost_user_blk_daemon.unwrap(); // Start the daemon let (daemon_child, vubd_socket_path) = prepare_daemon(&guest.tmp_dir, "blk.img", num_queues, readonly, direct); ( format!( "vhost_user=true,socket={},num_queues={},queue_size=128", vubd_socket_path, num_queues, ), Some(daemon_child), ) }; let mut cloud_child = GuestCommand::new(&guest) .args(&["--cpus", format!("boot={}", num_queues).as_str()]) .args(&["--memory", "size=512M,hotplug_size=2048M,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .args(&[ "--disk", format!( "path={}", guest.disk_config.disk(DiskType::OperatingSystem).unwrap() ) .as_str(), format!( "path={}", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), blk_params.as_str(), ]) .default_net() .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check both if /dev/vdc exists and if the block size is 16M. aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Check if this block is RO or RW. aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | awk '{print $5}'") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), readonly as u32 ); // Check if the number of queues in /sys/block/vdc/mq matches the // expected num_queues. aver_eq!( tb, guest .ssh_command("ls -ll /sys/block/vdc/mq | grep ^d | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), num_queues as u32 ); // Mount the device let mount_ro_rw_flag = if readonly { "ro,noload" } else { "rw" }; guest.ssh_command("mkdir mount_image")?; guest.ssh_command( format!( "sudo mount -o {} -t ext4 /dev/vdc mount_image/", mount_ro_rw_flag ) .as_str(), )?; // Check the content of the block device. The file "foo" should // contain "bar". aver_eq!( tb, guest .ssh_command("cat mount_image/foo") .unwrap_or_default() .trim(), "bar" ); // ACPI is not built with mmio, hence we can't test the resize // feature for mmio. #[cfg(not(feature = "mmio"))] { guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); // Check again the content of the block device after the resize // has been performed. aver_eq!( tb, guest .ssh_command("cat mount_image/foo") .unwrap_or_default() .trim(), "bar" ); } // Unmount the device guest.ssh_command("sudo umount /dev/vdc")?; guest.ssh_command("rm -r mount_image")?; let _ = cloud_child.kill(); let _ = cloud_child.wait(); if let Some(mut daemon_child) = daemon_child { thread::sleep(std::time::Duration::new(5, 0)); let _ = daemon_child.kill(); let _ = daemon_child.wait(); } Ok(()) }); } fn test_boot_from_vhost_user_blk( num_queues: usize, readonly: bool, direct: bool, prepare_vhost_user_blk_daemon: Option<&PrepareBlkDaemon>, self_spawned: bool, ) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let disk_path = guest .disk_config .disk(DiskType::RawOperatingSystem) .unwrap(); let (blk_boot_params, daemon_child) = if self_spawned { ( format!( "vhost_user=true,path={},num_queues={},queue_size=128", disk_path, num_queues, ), None, ) } else { let prepare_daemon = prepare_vhost_user_blk_daemon.unwrap(); // Start the daemon let (daemon_child, vubd_socket_path) = prepare_daemon( &guest.tmp_dir, disk_path.as_str(), num_queues, readonly, direct, ); ( format!( "vhost_user=true,socket={},num_queues={},queue_size=128", vubd_socket_path, num_queues, ), Some(daemon_child), ) }; let mut cloud_child = GuestCommand::new(&guest) .args(&["--cpus", format!("boot={}", num_queues).as_str()]) .args(&["--memory", "size=512M,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .args(&[ "--disk", blk_boot_params.as_str(), format!( "path={}", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), ]) .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Just check the VM booted correctly. aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), num_queues as u32 ); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); if self_spawned { // The reboot is not supported with mmio, so no reason to test it. #[cfg(not(feature = "mmio"))] { let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); } } let _ = cloud_child.kill(); let _ = cloud_child.wait(); if let Some(mut daemon_child) = daemon_child { thread::sleep(std::time::Duration::new(5, 0)); let _ = daemon_child.kill(); let _ = daemon_child.wait(); } Ok(()) }); } fn test_virtio_fs( dax: bool, cache_size: Option, virtiofsd_cache: &str, prepare_daemon: &dyn Fn(&TempDir, &str, &str) -> (std::process::Child, String), hotplug: bool, ) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut shared_dir = workload_path.clone(); shared_dir.push("shared_dir"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let (dax_vmm_param, dax_mount_param) = if dax { ("on", "-o dax") } else { ("off", "") }; let cache_size_vmm_param = if let Some(cache) = cache_size { format!(",cache_size={}", cache) } else { "".to_string() }; let (mut daemon_child, virtiofsd_socket_path) = prepare_daemon( &guest.tmp_dir, shared_dir.to_str().unwrap(), virtiofsd_cache, ); let mut guest_command = GuestCommand::new(&guest); guest_command .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M,hotplug_size=2048M,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .args(&["--api-socket", &api_socket]); let fs_params = format!( "id=myfs0,tag=myfs,socket={},num_queues=1,queue_size=1024,dax={}{}", virtiofsd_socket_path, dax_vmm_param, cache_size_vmm_param ); if !hotplug { guest_command.args(&["--fs", fs_params.as_str()]); } let mut child = guest_command.spawn().unwrap(); thread::sleep(std::time::Duration::new(20, 0)); if hotplug { // Add fs to the VM let (cmd_success, cmd_output) = remote_command_w_output(&api_socket, "add-fs", Some(&fs_params)); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"myfs0\",\"bdf\":\"0000:00:06.0\"}") ); thread::sleep(std::time::Duration::new(10, 0)); } // Mount shared directory through virtio_fs filesystem let mount_cmd = format!( "mkdir -p mount_dir && \ sudo mount -t virtiofs {} myfs mount_dir/ && \ echo ok", dax_mount_param ); aver_eq!( tb, guest.ssh_command(&mount_cmd).unwrap_or_default().trim(), "ok" ); // Check the cache size is the expected one. // With virtio-mmio the cache doesn't appear in /proc/iomem #[cfg(not(feature = "mmio"))] aver_eq!( tb, guest .valid_virtio_fs_cache_size(dax, cache_size) .unwrap_or_default(), true ); // Check file1 exists and its content is "foo" aver_eq!( tb, guest .ssh_command("cat mount_dir/file1") .unwrap_or_default() .trim(), "foo" ); // Check file2 does not exist aver_ne!( tb, guest .ssh_command("ls mount_dir/file2") .unwrap_or_default() .trim(), "mount_dir/file2" ); // Check file3 exists and its content is "bar" aver_eq!( tb, guest .ssh_command("cat mount_dir/file3") .unwrap_or_default() .trim(), "bar" ); // ACPI is not built with mmio, hence we can't test the resize // feature for mmio. #[cfg(not(feature = "mmio"))] { guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); // After the resize, check again that file1 exists and its // content is "foo". aver_eq!( tb, guest .ssh_command("cat mount_dir/file1") .unwrap_or_default() .trim(), "foo" ); } if hotplug { // Remove from VM aver_eq!( tb, guest .ssh_command("sudo umount mount_dir && echo ok") .unwrap_or_default() .trim(), "ok" ); aver!( tb, remote_command(&api_socket, "remove-device", Some("myfs0"),) ); thread::sleep(std::time::Duration::new(10, 0)); let (mut daemon_child, virtiofsd_socket_path) = prepare_daemon( &guest.tmp_dir, shared_dir.to_str().unwrap(), virtiofsd_cache, ); thread::sleep(std::time::Duration::new(10, 0)); let fs_params = format!( "id=myfs0,tag=myfs,socket={},num_queues=1,queue_size=1024,dax={}{}", virtiofsd_socket_path, dax_vmm_param, cache_size_vmm_param ); // Add back and check it works let (cmd_success, cmd_output) = remote_command_w_output(&api_socket, "add-fs", Some(&fs_params)); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"myfs0\",\"bdf\":\"0000:00:06.0\"}") ); thread::sleep(std::time::Duration::new(10, 0)); // Mount shared directory through virtio_fs filesystem let mount_cmd = format!( "mkdir -p mount_dir && \ sudo mount -t virtiofs {} myfs mount_dir/ && \ echo ok", dax_mount_param ); aver_eq!( tb, guest.ssh_command(&mount_cmd).unwrap_or_default().trim(), "ok" ); // Check file1 exists and its content is "foo" aver_eq!( tb, guest .ssh_command("cat mount_dir/file1") .unwrap_or_default() .trim(), "foo" ); let _ = daemon_child.kill(); let _ = daemon_child.wait(); } let _ = child.kill(); let _ = daemon_child.kill(); let _ = child.wait(); let _ = daemon_child.wait(); Ok(()) }); } fn test_virtio_pmem(discard_writes: bool, specify_size: bool) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let mut pmem_temp_file = NamedTempFile::new().unwrap(); pmem_temp_file.as_file_mut().set_len(128 << 20).unwrap(); std::process::Command::new("mkfs.ext4") .arg(pmem_temp_file.path()) .output() .expect("Expect creating disk image to succeed"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&[ "--pmem", format!( "file={}{}{}", pmem_temp_file.path().to_str().unwrap(), if specify_size { ",size=128M" } else { "" }, if discard_writes { ",discard_writes=on" } else { "" } ) .as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check for the presence of /dev/pmem0 aver_eq!( tb, guest .ssh_command("ls /dev/pmem0") .unwrap_or_default() .trim(), "/dev/pmem0" ); // Check changes persist after reboot aver_eq!( tb, guest.ssh_command("sudo mount /dev/pmem0 /mnt").unwrap(), "" ); aver_eq!(tb, guest.ssh_command("ls /mnt").unwrap(), "lost+found\n"); guest .ssh_command("echo test123 | sudo tee /mnt/test") .unwrap(); aver_eq!(tb, guest.ssh_command("sudo umount /mnt").unwrap(), ""); aver_eq!(tb, guest.ssh_command("ls /mnt").unwrap(), ""); guest.ssh_command("sudo reboot").unwrap(); thread::sleep(std::time::Duration::new(30, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); aver_eq!( tb, guest.ssh_command("sudo mount /dev/pmem0 /mnt").unwrap(), "" ); aver_eq!( tb, guest .ssh_command("sudo cat /mnt/test") .unwrap_or_default() .trim(), if discard_writes { "" } else { "test123" } ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } fn get_fd_count(pid: u32) -> usize { fs::read_dir(format!("/proc/{}/fd", pid)).unwrap().count() } fn _test_virtio_vsock(hotplug: bool) { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let socket = temp_vsock_path(&guest.tmp_dir); let api_socket = temp_api_path(&guest.tmp_dir); let mut cmd = GuestCommand::new(&guest); cmd.args(&["--api-socket", &api_socket]); cmd.args(&["--cpus", "boot=1"]); cmd.args(&["--memory", "size=512M"]); cmd.args(&["--kernel", kernel_path.to_str().unwrap()]); cmd.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]); cmd.default_disks(); cmd.default_net(); if !hotplug { cmd.args(&["--vsock", format!("cid=3,socket={}", socket).as_str()]); } let mut child = cmd.spawn().unwrap(); thread::sleep(std::time::Duration::new(20, 0)); if hotplug { let (cmd_success, cmd_output) = remote_command_w_output( &api_socket, "add-vsock", Some(format!("cid=3,socket={},id=test0", socket).as_str()), ); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"test0\",\"bdf\":\"0000:00:06.0\"}") ); thread::sleep(std::time::Duration::new(10, 0)); // Check adding a second one fails aver!( tb, !remote_command(&api_socket, "add-vsock", Some("cid=1234,socket=/tmp/fail")) ); } // Validate vsock works as expected. guest.check_vsock(socket.as_str()); #[cfg(not(feature = "mmio"))] { let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(30, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); // Validate vsock still works after a reboot. guest.check_vsock(socket.as_str()); } if hotplug { aver!( tb, remote_command(&api_socket, "remove-device", Some("test0")) ); } let _ = child.kill(); let _ = child.wait(); Ok(()) }); } fn get_pss(pid: u32) -> u32 { let smaps = fs::File::open(format!("/proc/{}/smaps", pid)).unwrap(); let reader = io::BufReader::new(smaps); let mut total = 0; for line in reader.lines() { let l = line.unwrap(); // Lines look like this: // Pss: 176 kB if l.contains("Pss") { let values: Vec<&str> = l.rsplit(' ').collect(); total += values[1].trim().parse::().unwrap() } } total } fn test_memory_mergeable(mergeable: bool) { test_block!(tb, "", { let memory_param = if mergeable { "mergeable=on" } else { "mergeable=off" }; let mut focal1 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let mut focal2 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest1 = Guest::new(&mut focal1 as &mut dyn DiskConfig); let mut child1 = GuestCommand::new(&guest1) .args(&["--cpus", "boot=1"]) .args(&["--memory", format!("size=512M,{}", memory_param).as_str()]) .args(&["--kernel", guest1.fw_path.as_str()]) .default_disks() .args(&["--net", guest1.default_net_string().as_str()]) .args(&["--serial", "tty", "--console", "off"]) .spawn() .unwrap(); // Let enough time for the first VM to be spawned, and to make // sure the PSS measurement is accurate. thread::sleep(std::time::Duration::new(120, 0)); // Get initial PSS let old_pss = get_pss(child1.id()); let guest2 = Guest::new(&mut focal2 as &mut dyn DiskConfig); let mut child2 = GuestCommand::new(&guest2) .args(&["--cpus", "boot=1"]) .args(&["--memory", format!("size=512M,{}", memory_param).as_str()]) .args(&["--kernel", guest2.fw_path.as_str()]) .default_disks() .args(&["--net", guest2.default_net_string().as_str()]) .args(&["--serial", "tty", "--console", "off"]) .spawn() .unwrap(); // Let enough time for the second VM to be spawned, and to make // sure KSM has enough time to merge identical pages between the // 2 VMs. thread::sleep(std::time::Duration::new(60, 0)); // Get new PSS let new_pss = get_pss(child1.id()); // Convert PSS from u32 into float. let old_pss = old_pss as f32; let new_pss = new_pss as f32; println!("old PSS {}, new PSS {}", old_pss, new_pss); if mergeable { aver!(tb, new_pss < (old_pss * 0.95)); } else { aver!(tb, (old_pss * 0.95) < new_pss && new_pss < (old_pss * 1.05)); } let _ = child1.kill(); let _ = child2.kill(); let _ = child1.wait(); let _ = child2.wait(); Ok(()) }); } fn _get_vmm_overhead(pid: u32, guest_memory_size: u32) -> HashMap { let smaps = fs::File::open(format!("/proc/{}/smaps", pid)).unwrap(); let reader = io::BufReader::new(smaps); let mut skip_map: bool = false; let mut region_name: String = "".to_string(); let mut region_maps = HashMap::new(); for line in reader.lines() { let l = line.unwrap(); if l.contains('-') { let values: Vec<&str> = l.split_whitespace().collect(); region_name = values.last().unwrap().trim().to_string(); if region_name == "0" { region_name = "anonymous".to_string() } } // Each section begins with something that looks like: // Size: 2184 kB if l.starts_with("Size:") { let values: Vec<&str> = l.split_whitespace().collect(); let map_size = values[1].parse::().unwrap(); // We skip the assigned guest RAM map, its RSS is only // dependent on the guest actual memory usage. // Everything else can be added to the VMM overhead. skip_map = map_size >= guest_memory_size; continue; } // If this is a map we're taking into account, then we only // count the RSS. The sum of all counted RSS is the VMM overhead. if !skip_map && l.starts_with("Rss:") { let values: Vec<&str> = l.split_whitespace().collect(); let value = values[1].trim().parse::().unwrap(); *region_maps.entry(region_name.clone()).or_insert(0) += value; } } region_maps } fn get_vmm_overhead(pid: u32, guest_memory_size: u32) -> u32 { let mut total = 0; for (region_name, value) in &_get_vmm_overhead(pid, guest_memory_size) { eprintln!("{}: {}", region_name, value); total += value; } total } // 10MB is our maximum accepted overhead. const MAXIMUM_VMM_OVERHEAD_KB: u32 = 10 * 1024; #[derive(PartialEq, PartialOrd)] struct Counters { rx_bytes: u64, rx_frames: u64, tx_bytes: u64, tx_frames: u64, read_bytes: u64, write_bytes: u64, read_ops: u64, write_ops: u64, } fn get_counters(api_socket: &str) -> Counters { // Get counters let (cmd_success, cmd_output) = remote_command_w_output(&api_socket, "counters", None); assert!(cmd_success); let counters: HashMap<&str, HashMap<&str, u64>> = serde_json::from_slice(&cmd_output).unwrap_or_default(); let rx_bytes = *counters.get("_net2").unwrap().get("rx_bytes").unwrap(); let rx_frames = *counters.get("_net2").unwrap().get("rx_frames").unwrap(); let tx_bytes = *counters.get("_net2").unwrap().get("tx_bytes").unwrap(); let tx_frames = *counters.get("_net2").unwrap().get("tx_frames").unwrap(); let read_bytes = *counters.get("_disk0").unwrap().get("read_bytes").unwrap(); let write_bytes = *counters.get("_disk0").unwrap().get("write_bytes").unwrap(); let read_ops = *counters.get("_disk0").unwrap().get("read_ops").unwrap(); let write_ops = *counters.get("_disk0").unwrap().get("write_ops").unwrap(); Counters { rx_bytes, rx_frames, tx_bytes, tx_frames, read_bytes, read_ops, write_bytes, write_ops, } } mod parallel { use crate::tests::*; #[cfg_attr(not(feature = "mmio"), test)] fn test_simple_launch() { test_block!(tb, "", { let mut bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string()); let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); vec![ &mut bionic as &mut dyn DiskConfig, &mut focal as &mut dyn DiskConfig, ] .iter_mut() .for_each(|disk_config| { let guest = Guest::new(*disk_config); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_raw_disks() .default_net() .args(&["--serial", "tty", "--console", "off"]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver_eq!(tb, guest.get_initial_apicid().unwrap_or(1), 0); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); aver_eq!( tb, guest.get_pci_bridge_class().unwrap_or_default(), "0x060000" ); let _ = child.kill(); let _ = child.wait(); }); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_multi_cpu() { test_block!(tb, "", { let mut bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string()); let guest = Guest::new(&mut bionic); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=2,max=4"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_raw_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 2); aver_eq!( tb, guest .ssh_command( r#"dmesg | grep "smpboot: Allowing" | sed "s/\[\ *[0-9.]*\] //""# ) .unwrap_or_default() .trim(), "smpboot: Allowing 4 CPUs, 2 hotplug CPUs" ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_cpu_topology_421() { test_cpu_topology(4, 2, 1); } #[cfg_attr(not(feature = "mmio"), test)] fn test_cpu_topology_142() { test_cpu_topology(1, 4, 2); } #[cfg_attr(not(feature = "mmio"), test)] fn test_cpu_topology_262() { test_cpu_topology(2, 6, 2); } #[cfg_attr(not(feature = "mmio"), test)] fn test_large_vm() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=48"]) .args(&["--memory", "size=5120M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 5_000_000); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_huge_memory() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=128G"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver!( tb, guest.get_total_memory().unwrap_or_default() > 128_000_000 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_pci_msi() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!( tb, guest .ssh_command("grep -c PCI-MSI /proc/interrupts") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 12 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] #[cfg(target_arch = "x86_64")] fn test_vmlinux_boot() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); #[cfg(not(feature = "mmio"))] aver_eq!( tb, guest .ssh_command("grep -c PCI-MSI /proc/interrupts") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 12 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] #[cfg(target_arch = "aarch64")] fn test_aarch64_pe_boot() { test_block!(tb, "", { let mut bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string()); let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); vec![ &mut bionic as &mut dyn DiskConfig, &mut focal as &mut dyn DiskConfig, ] .iter_mut() .for_each(|disk_config| { let guest = Guest::new(*disk_config); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("Image"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", ARM64_KERNEL_CMDLINE]) .args(&["--seccomp", "false"]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); let _ = child.kill(); let _ = child.wait(); }); Ok(()) }); } #[test] #[cfg(target_arch = "x86_64")] fn test_pvh_boot() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux.pvh"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); #[cfg(not(feature = "mmio"))] aver_eq!( tb, guest .ssh_command("grep -c PCI-MSI /proc/interrupts") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 12 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] #[cfg(target_arch = "x86_64")] fn test_bzimage_boot() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); #[cfg(not(feature = "mmio"))] aver_eq!( tb, guest .ssh_command("grep -c PCI-MSI /proc/interrupts") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 12 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] fn test_virtio_blk() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut blk_file_path = workload_path.clone(); blk_file_path.push("blk.img"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut cloud_child = GuestCommand::new(&guest) .args(&["--cpus", "boot=4"]) .args(&["--memory", "size=512M,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .args(&[ "--disk", format!( "path={}", guest.disk_config.disk(DiskType::OperatingSystem).unwrap() ) .as_str(), format!( "path={}", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), format!( "path={},readonly=on,direct=on,num_queues=4", blk_file_path.to_str().unwrap() ) .as_str(), ]) .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check both if /dev/vdc exists and if the block size is 16M. aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Check both if /dev/vdc exists and if this block is RO. aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | awk '{print $5}'") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Check if the number of queues is 4. aver_eq!( tb, guest .ssh_command("ls -ll /sys/block/vdc/mq | grep ^d | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 4 ); let _ = cloud_child.kill(); let _ = cloud_child.wait(); Ok(()) }); } #[test] fn test_vhost_user_net_default() { test_vhost_user_net(None, 2, Some(&prepare_vhost_user_net_daemon), false, false) } #[test] fn test_vhost_user_net_named_tap() { test_vhost_user_net( Some("mytap0"), 2, Some(&prepare_vhost_user_net_daemon), false, false, ) } #[test] fn test_vhost_user_net_existing_tap() { test_vhost_user_net( Some("vunet-tap0"), 2, Some(&prepare_vhost_user_net_daemon), false, false, ) } #[test] fn test_vhost_user_net_multiple_queues() { test_vhost_user_net(None, 4, Some(&prepare_vhost_user_net_daemon), false, false) } #[test] fn test_vhost_user_net_tap_multiple_queues() { test_vhost_user_net( Some("vunet-tap1"), 4, Some(&prepare_vhost_user_net_daemon), false, false, ) } #[test] fn test_vhost_user_net_self_spawning() { test_vhost_user_net(None, 4, None, true, false) } #[test] fn test_vhost_user_net_self_spawning_host_mac() { test_vhost_user_net(None, 2, None, true, true) } #[test] fn test_vhost_user_net_host_mac() { test_vhost_user_net(None, 2, None, true, true) } #[test] fn test_vhost_user_blk_default() { test_vhost_user_blk(2, false, false, Some(&prepare_vubd), false) } #[test] fn test_vhost_user_blk_self_spawning() { test_vhost_user_blk(1, false, false, None, true) } #[test] fn test_vhost_user_blk_readonly() { test_vhost_user_blk(1, true, false, Some(&prepare_vubd), false) } #[test] fn test_vhost_user_blk_direct() { test_vhost_user_blk(1, false, true, Some(&prepare_vubd), false) } #[test] fn test_boot_from_vhost_user_blk_default() { test_boot_from_vhost_user_blk(1, false, false, Some(&prepare_vubd), false) } #[test] fn test_boot_from_vhost_user_blk_self_spawning() { test_boot_from_vhost_user_blk(1, false, false, None, true) } #[cfg_attr(not(feature = "mmio"), test)] fn test_split_irqchip() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'timer'") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'cascade'") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] fn test_virtio_fs_dax_on_default_cache_size() { test_virtio_fs(true, None, "none", &prepare_virtiofsd, false) } #[test] fn test_virtio_fs_dax_on_cache_size_1_gib() { test_virtio_fs(true, Some(0x4000_0000), "none", &prepare_virtiofsd, false) } #[test] fn test_virtio_fs_dax_off() { test_virtio_fs(false, None, "none", &prepare_virtiofsd, false) } #[test] fn test_virtio_fs_dax_on_default_cache_size_w_vhost_user_fs_daemon() { test_virtio_fs(true, None, "none", &prepare_vhost_user_fs_daemon, false) } #[test] fn test_virtio_fs_dax_on_cache_size_1_gib_w_vhost_user_fs_daemon() { test_virtio_fs( true, Some(0x4000_0000), "none", &prepare_vhost_user_fs_daemon, false, ) } #[test] fn test_virtio_fs_dax_off_w_vhost_user_fs_daemon() { test_virtio_fs(false, None, "none", &prepare_vhost_user_fs_daemon, false) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_fs_hotplug_dax_on() { test_virtio_fs(true, None, "none", &prepare_virtiofsd, true) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_fs_hotplug_dax_off() { test_virtio_fs(false, None, "none", &prepare_virtiofsd, true) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_fs_hotplug_dax_on_w_vhost_user_fs_daemon() { test_virtio_fs(true, None, "none", &prepare_vhost_user_fs_daemon, true) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_fs_hotplug_dax_off_w_vhost_user_fs_daemon() { test_virtio_fs(false, None, "none", &prepare_vhost_user_fs_daemon, true) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_pmem_persist_writes() { test_virtio_pmem(false, false) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_pmem_discard_writes() { test_virtio_pmem(true, false) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_pmem_with_size() { test_virtio_pmem(true, true) } #[test] fn test_boot_from_virtio_pmem() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&[ "--disk", format!( "path={}", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), ]) .default_net() .args(&[ "--pmem", format!( "file={},size={}", guest .disk_config .disk(DiskType::RawOperatingSystem) .unwrap(), fs::metadata( &guest .disk_config .disk(DiskType::RawOperatingSystem) .unwrap() ) .unwrap() .len() ) .as_str(), ]) .args(&[ "--cmdline", DIRECT_KERNEL_BOOT_CMDLINE .replace("vda1", "pmem0p1") .as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Simple checks to validate the VM booted properly aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] fn test_multiple_network_interfaces() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .args(&[ "--net", guest.default_net_string().as_str(), "tap=,mac=8a:6b:6f:5a:de:ac,ip=192.168.3.1,mask=255.255.255.0", "tap=mytap1,mac=fe:1f:9e:e1:60:f2,ip=192.168.4.1,mask=255.255.255.0", ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let tap_count = std::process::Command::new("bash") .arg("-c") .arg("ip link | grep -c mytap1") .output() .expect("Expected checking of tap count to succeed"); aver_eq!(tb, String::from_utf8_lossy(&tap_count.stdout).trim(), "1"); // 3 network interfaces + default localhost ==> 4 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 4 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_unprivileged_net() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let host_ip = &guest.network.host_ip; std::process::Command::new("bash") .args(&["-c", "sudo ip tuntap add name chtap0 mode tap"]) .status() .expect("Expected creating interface to work"); std::process::Command::new("bash") .args(&["-c", &format!("sudo ip addr add {}/24 dev chtap0", host_ip)]) .status() .expect("Expected programming interface to work"); std::process::Command::new("bash") .args(&["-c", "sudo ip link set dev chtap0 up"]) .status() .expect("Expected upping interface to work"); let mut child = GuestCommand::new_with_binary_name(&guest, "cloud-hypervisor-unprivileged") .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .args(&[ "--net", format!("tap=chtap0,mac={}", guest.network.guest_mac).as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // 1 network interfaces + default localhost ==> 2 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 2 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_serial_off() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&[ "--cmdline", DIRECT_KERNEL_BOOT_CMDLINE .replace("console=ttyS0 ", "") .as_str(), ]) .args(&["--serial", "off"]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Test that there is no ttyS0 aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'ttyS0'") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_serial_null() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .args(&["--serial", "null"]) .args(&["--console", "off"]) .capture_output() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Test that there is a ttyS0 aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'ttyS0'") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); let _ = child.kill(); match child.wait_with_output() { Ok(out) => { aver!( tb, !String::from_utf8_lossy(&out.stdout).contains("cloud login:") ); } Err(_) => aver!(tb, false), } Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_serial_tty() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--serial", "tty"]) .args(&["--console", "off"]) .capture_output() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Test that there is a ttyS0 aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'ttyS0'") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); let _ = child.kill(); match child.wait_with_output() { Ok(out) => { aver!( tb, String::from_utf8_lossy(&out.stdout).contains("cloud login:") ); } Err(_) => aver!(tb, false), } Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_serial_file() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let serial_path = guest.tmp_dir.path().join("/tmp/serial-output"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .args(&[ "--serial", format!("file={}", serial_path.to_str().unwrap()).as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Test that there is a ttyS0 aver_eq!( tb, guest .ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'ttyS0'") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); guest.ssh_command("sudo shutdown -h now")?; // Check that the cloud-hypervisor binary actually terminated if let Ok(status) = child.wait() { aver_eq!(tb, status.success(), true); } // Do this check after shutdown of the VM as an easy way to ensure // all writes are flushed to disk let mut f = std::fs::File::open(serial_path)?; let mut buf = String::new(); f.read_to_string(&mut buf)?; aver!(tb, buf.contains("cloud login:")); Ok(()) }); } #[test] fn test_virtio_console() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--console", "tty"]) .args(&["--serial", "null"]) .capture_output() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); #[cfg(not(feature = "mmio"))] aver!( tb, guest .does_device_vendor_pair_match("0x1043", "0x1af4") .unwrap_or_default() ); let text = String::from("On a branch floating down river a cricket, singing."); let cmd = format!("echo {} | sudo tee /dev/hvc0", text); guest.ssh_command(&cmd)?; let _ = child.kill(); match child.wait_with_output() { Ok(out) => { aver!(tb, String::from_utf8_lossy(&out.stdout).contains(&text)); } Err(_) => aver!(tb, false), } Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_console_file() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let console_path = guest.tmp_dir.path().join("/tmp/console-output"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .default_net() .args(&[ "--console", format!("file={}", console_path.to_str().unwrap()).as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); guest.ssh_command("sudo shutdown -h now")?; // Check that the cloud-hypervisor binary actually terminated if let Ok(status) = child.wait() { aver_eq!(tb, status.success(), true); } // Do this check after shutdown of the VM as an easy way to ensure // all writes are flushed to disk let mut f = std::fs::File::open(console_path)?; let mut buf = String::new(); f.read_to_string(&mut buf)?; aver!(tb, buf.contains("cloud login:")); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] // The VFIO integration test starts cloud-hypervisor guest with 3 TAP // backed networking interfaces, bound through a simple bridge on the host. // So if the nested cloud-hypervisor succeeds in getting a directly // assigned interface from its cloud-hypervisor host, we should be able to // ssh into it, and verify that it's running with the right kernel command // line (We tag the command line from cloud-hypervisor for that purpose). // The third device is added to validate that hotplug works correctly since // it is being added to the L2 VM through hotplugging mechanism. fn test_vfio() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new_from_ip_range(&mut focal, "172.17", 0); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path.clone(); kernel_path.push("bzImage"); let mut vfio_path = workload_path; vfio_path.push("vfio"); let mut cloud_init_vfio_base_path = vfio_path.clone(); cloud_init_vfio_base_path.push("cloudinit.img"); // We copy our cloudinit into the vfio mount point, for the nested // cloud-hypervisor guest to use. rate_limited_copy( &guest.disk_config.disk(DiskType::CloudInit).unwrap(), &cloud_init_vfio_base_path, ) .expect("copying of cloud-init disk failed"); let vfio_tap0 = "vfio-tap0"; let vfio_tap1 = "vfio-tap1"; let vfio_tap2 = "vfio-tap2"; let vfio_tap3 = "vfio-tap3"; let (mut daemon_child, virtiofsd_socket_path) = prepare_virtiofsd(&guest.tmp_dir, vfio_path.to_str().unwrap(), "none"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=4"]) .args(&["--memory", "size=2G,hugepages=on,shared=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .args(&[ "--cmdline", format!( "{} kvm-intel.nested=1 vfio_iommu_type1.allow_unsafe_interrupts", DIRECT_KERNEL_BOOT_CMDLINE ) .as_str(), ]) .args(&[ "--net", format!("tap={},mac={}", vfio_tap0, guest.network.guest_mac).as_str(), format!( "tap={},mac={},iommu=on", vfio_tap1, guest.network.l2_guest_mac1 ) .as_str(), format!( "tap={},mac={},iommu=on", vfio_tap2, guest.network.l2_guest_mac2 ) .as_str(), format!( "tap={},mac={},iommu=on", vfio_tap3, guest.network.l2_guest_mac3 ) .as_str(), ]) .args(&[ "--fs", format!( "tag=myfs,socket={},num_queues=1,queue_size=1024,dax=on", virtiofsd_socket_path, ) .as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(30, 0)); guest.ssh_command_l1("sudo systemctl start vfio")?; thread::sleep(std::time::Duration::new(120, 0)); // We booted our cloud hypervisor L2 guest with a "VFIOTAG" tag // added to its kernel command line. // Let's ssh into it and verify that it's there. If it is it means // we're in the right guest (The L2 one) because the QEMU L1 guest // does not have this command line tag. aver_eq!( tb, guest .ssh_command_l2_1("grep -c VFIOTAG /proc/cmdline") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Let's also verify from the second virtio-net device passed to // the L2 VM. aver_eq!( tb, guest .ssh_command_l2_2("grep -c VFIOTAG /proc/cmdline") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Check the amount of PCI devices appearing in L2 VM. aver_eq!( tb, guest .ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 7, ); // Hotplug an extra virtio-net device through L2 VM. guest.ssh_command_l1( "echo 0000:00:07.0 | sudo tee /sys/bus/pci/devices/0000:00:07.0/driver/unbind", )?; guest.ssh_command_l1( "echo 1af4 1041 | sudo tee /sys/bus/pci/drivers/vfio-pci/new_id", )?; let vfio_hotplug_output = guest.ssh_command_l1( "sudo /mnt/ch-remote \ --api-socket=/tmp/ch_api.sock \ add-device path=/sys/bus/pci/devices/0000:00:07.0,id=vfio123", )?; aver!( tb, vfio_hotplug_output.contains("{\"id\":\"vfio123\",\"bdf\":\"0000:00:07.0\"}") ); thread::sleep(std::time::Duration::new(10, 0)); // Let's also verify from the third virtio-net device passed to // the L2 VM. This third device has been hotplugged through the L2 // VM, so this is our way to validate hotplug works for VFIO PCI. aver_eq!( tb, guest .ssh_command_l2_3("grep -c VFIOTAG /proc/cmdline") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); // Check the amount of PCI devices appearing in L2 VM. // There should be one more device than before, raising the count // up to 8 PCI devices. aver_eq!( tb, guest .ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 8, ); // Let's now verify that we can correctly remove the virtio-net // device through the "remove-device" command responsible for // unplugging VFIO devices. guest.ssh_command_l1( "sudo /mnt/ch-remote \ --api-socket=/tmp/ch_api.sock \ remove-device vfio123", )?; thread::sleep(std::time::Duration::new(10, 0)); // Check the amount of PCI devices appearing in L2 VM is back down // to 7 devices. aver_eq!( tb, guest .ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 7, ); // Perform memory hotplug in L2 and validate the memory is showing // up as expected. In order to check, we will use the virtio-net // device already passed through L2 as a VFIO device, this will // verify that VFIO devices are functional with memory hotplug. aver!( tb, guest.get_total_memory_l2().unwrap_or_default() > 480_000 ); guest.ssh_command_l2_1( "sudo bash -c 'echo online > /sys/devices/system/memory/auto_online_blocks'", )?; guest.ssh_command_l1( "sudo /mnt/ch-remote \ --api-socket=/tmp/ch_api.sock \ resize --memory=1073741824", )?; aver!( tb, guest.get_total_memory_l2().unwrap_or_default() > 960_000 ); let _ = child.kill(); let _ = daemon_child.kill(); let _ = child.wait(); let _ = daemon_child.wait(); Ok(()) }); } #[cfg_attr(feature = "mmio", test)] fn test_vmlinux_boot_noacpi() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&[ "--cmdline", format!("{} acpi=off", DIRECT_KERNEL_BOOT_CMDLINE).as_str(), ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 1); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_reboot() { test_block!(tb, "", { let mut bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string()); let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); vec![ &mut bionic as &mut dyn DiskConfig, &mut focal as &mut dyn DiskConfig, ] .iter_mut() .for_each(|disk_config| { let guest = Guest::new(*disk_config); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_raw_disks() .default_net() .args(&["--serial", "tty", "--console", "off"]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); let fd_count_1 = get_fd_count(child.id()); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); let fd_count_2 = get_fd_count(child.id()); aver_eq!(tb, reboot_count, 1); aver_eq!(tb, fd_count_1, fd_count_2); guest .ssh_command("sudo shutdown -h now") .unwrap_or_default(); // Check that the cloud-hypervisor binary actually terminated if let Ok(status) = child.wait() { aver_eq!(tb, status.success(), true); } let _ = child.wait(); }); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_bzimage_reboot() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .default_net() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); let fd_count_1 = get_fd_count(child.id()); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot")?; thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); let fd_count_2 = get_fd_count(child.id()); aver_eq!(tb, reboot_count, 1); aver_eq!(tb, fd_count_1, fd_count_2); guest.ssh_command("sudo shutdown -h now")?; thread::sleep(std::time::Duration::new(20, 0)); // Check that the cloud-hypervisor binary actually terminated if let Ok(status) = child.wait() { aver_eq!(tb, status.success(), true); } let _ = child.wait(); Ok(()) }); } #[test] fn test_virtio_vsock() { _test_virtio_vsock(false) } #[cfg_attr(not(feature = "mmio"), test)] fn test_virtio_vsock_hotplug() { _test_virtio_vsock(true); } #[cfg_attr(not(feature = "mmio"), test)] // Start cloud-hypervisor with no VM parameters, only the API server running. // From the API: Create a VM, boot it and check that it looks as expected. fn test_api_create_boot() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let api_socket = temp_api_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(1, 0)); // Verify API server is running curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None); // Create the VM first let cpu_count: u8 = 4; let http_body = guest.api_create_body(cpu_count); curl_command( &api_socket, "PUT", "http://localhost/api/v1/vm.create", Some(&http_body), ); // Then boot it curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None); thread::sleep(std::time::Duration::new(20, 0)); // Check that the VM booted as expected aver_eq!( tb, guest.get_cpu_count().unwrap_or_default() as u8, cpu_count ); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] // Start cloud-hypervisor with no VM parameters, only the API server running. // From the API: Create a VM, boot it and check that it looks as expected. // Then we pause the VM, check that it's no longer available. // Finally we resume the VM and check that it's available. fn test_api_pause_resume() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let api_socket = temp_api_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(1, 0)); // Verify API server is running curl_command(&api_socket, "GET", "http://localhost/api/v1/vmm.ping", None); // Create the VM first let cpu_count: u8 = 4; let http_body = guest.api_create_body(cpu_count); curl_command( &api_socket, "PUT", "http://localhost/api/v1/vm.create", Some(&http_body), ); // Then boot it curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None); thread::sleep(std::time::Duration::new(20, 0)); // Check that the VM booted as expected aver_eq!( tb, guest.get_cpu_count().unwrap_or_default() as u8, cpu_count ); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_entropy().unwrap_or_default() >= 900); // We now pause the VM aver!(tb, remote_command(&api_socket, "pause", None)); // Check pausing again fails aver!(tb, !remote_command(&api_socket, "pause", None)); thread::sleep(std::time::Duration::new(2, 0)); // SSH into the VM should fail aver!( tb, ssh_command_ip( "grep -c processor /proc/cpuinfo", &guest.network.guest_ip, 2, 5 ) .is_err() ); // Resume the VM aver!(tb, remote_command(&api_socket, "resume", None)); // Check resuming again fails aver!(tb, !remote_command(&api_socket, "resume", None)); thread::sleep(std::time::Duration::new(2, 0)); // Now we should be able to SSH back in and get the right number of CPUs aver_eq!( tb, guest.get_cpu_count().unwrap_or_default() as u8, cpu_count ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] // This test validates that it can find the virtio-iommu device at first. // It also verifies that both disks and the network card are attached to // the virtual IOMMU by looking at /sys/kernel/iommu_groups directory. // The last interesting part of this test is that it exercises the network // interface attached to the virtual IOMMU since this is the one used to // send all commands through SSH. fn test_virtio_iommu() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&[ "--disk", format!( "path={},iommu=on", guest.disk_config.disk(DiskType::OperatingSystem).unwrap() ) .as_str(), format!( "path={},iommu=on", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) .as_str(), ]) .args(&["--net", guest.default_net_string_w_iommu().as_str()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Verify the virtio-iommu device is present. #[cfg(not(feature = "mmio"))] aver!( tb, guest .does_device_vendor_pair_match("0x1057", "0x1af4") .unwrap_or_default() ); // Verify the first disk is located under IOMMU group 0. aver_eq!( tb, guest .ssh_command("ls /sys/kernel/iommu_groups/0/devices") .unwrap() .trim(), "0000:00:02.0" ); // Verify the second disk is located under IOMMU group 1. aver_eq!( tb, guest .ssh_command("ls /sys/kernel/iommu_groups/1/devices") .unwrap() .trim(), "0000:00:03.0" ); // Verify the network card is located under IOMMU group 2. aver_eq!( tb, guest .ssh_command("ls /sys/kernel/iommu_groups/2/devices") .unwrap() .trim(), "0000:00:04.0" ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } // We cannot force the software running in the guest to reprogram the BAR // with some different addresses, but we have a reliable way of testing it // with a standard Linux kernel. // By removing a device from the PCI tree, and then rescanning the tree, // Linux consistently chooses to reorganize the PCI device BARs to other // locations in the guest address space. // This test creates a dedicated PCI network device to be checked as being // properly probed first, then removing it, and adding it again by doing a // rescan. #[cfg_attr(not(feature = "mmio"), test)] fn test_pci_bar_reprogramming() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .args(&[ "--net", guest.default_net_string().as_str(), "tap=,mac=8a:6b:6f:5a:de:ac,ip=192.168.3.1,mask=255.255.255.0", ]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // 2 network interfaces + default localhost ==> 3 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 3 ); let init_bar_addr = guest.ssh_command( "sudo awk '{print $1; exit}' /sys/bus/pci/devices/0000:00:05.0/resource", )?; // Remove the PCI device guest.ssh_command("echo 1 | sudo tee /sys/bus/pci/devices/0000:00:05.0/remove")?; // Only 1 network interface left + default localhost ==> 2 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 2 ); // Remove the PCI device guest.ssh_command("echo 1 | sudo tee /sys/bus/pci/rescan")?; // Back to 2 network interface + default localhost ==> 3 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 3 ); let new_bar_addr = guest.ssh_command( "sudo awk '{print $1; exit}' /sys/bus/pci/devices/0000:00:05.0/resource", )?; // Let's compare the BAR addresses for our virtio-net device. // They should be different as we expect the BAR reprogramming // to have happened. aver_ne!(tb, init_bar_addr, new_bar_addr); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_memory_mergeable_off() { test_memory_mergeable(false) } #[cfg_attr(not(feature = "mmio"), test)] fn test_cpu_hotplug() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=2,max=4"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 2); // Resize the VM let desired_vcpus = 4; resize_command(&api_socket, Some(desired_vcpus), None, None); guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu2/online")?; guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")?; thread::sleep(std::time::Duration::new(10, 0)); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(desired_vcpus) ); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(30, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(desired_vcpus) ); // Resize the VM let desired_vcpus = 2; resize_command(&api_socket, Some(desired_vcpus), None, None); thread::sleep(std::time::Duration::new(10, 0)); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(desired_vcpus) ); // Resize the VM back up to 4 let desired_vcpus = 4; resize_command(&api_socket, Some(desired_vcpus), None, None); guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu2/online")?; guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")?; thread::sleep(std::time::Duration::new(10, 0)); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(desired_vcpus) ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_memory_hotplug() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=2,max=4"]) .args(&["--memory", "size=512M,hotplug_size=8192M,balloon=on"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); // Use balloon remove RAM from the VM let desired_ram = 512 << 20; resize_command(&api_socket, None, None, Some(desired_ram)); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); aver!(tb, guest.get_total_memory().unwrap_or_default() < 960_000); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or(1); aver_eq!(tb, reboot_count, 0); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(30, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); aver!(tb, guest.get_total_memory().unwrap_or_default() < 960_000); // Use balloon add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, None, Some(desired_ram)); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 2048 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 1_920_000); // Remove RAM to the VM (only applies after reboot) let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(30, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 2); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); aver!(tb, guest.get_total_memory().unwrap_or_default() < 1_920_000); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] fn test_virtio_mem() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=2,max=4"]) .args(&[ "--memory", "size=512M,hotplug_method=virtio-mem,hotplug_size=8192M", ]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Add RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); // Add RAM to the VM let desired_ram = 2048 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 1_920_000); // Remove RAM to the VM let desired_ram = 1024 << 20; resize_command(&api_socket, None, Some(desired_ram), None); thread::sleep(std::time::Duration::new(10, 0)); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); aver!(tb, guest.get_total_memory().unwrap_or_default() < 1_920_000); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } // Test both vCPU and memory resizing together #[cfg_attr(not(feature = "mmio"), test)] fn test_resize() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=2,max=4"]) .args(&["--memory", "size=512M,hotplug_size=8192M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 2); aver!(tb, guest.get_total_memory().unwrap_or_default() > 480_000); guest .ssh_command( "echo online | sudo tee /sys/devices/system/memory/auto_online_blocks", ) .unwrap_or_default(); // Resize the VM let desired_vcpus = 4; let desired_ram = 1024 << 20; resize_command(&api_socket, Some(desired_vcpus), Some(desired_ram), None); guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu2/online")?; guest.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")?; thread::sleep(std::time::Duration::new(10, 0)); aver_eq!( tb, guest.get_cpu_count().unwrap_or_default(), u32::from(desired_vcpus) ); aver!(tb, guest.get_total_memory().unwrap_or_default() > 960_000); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_memory_overhead() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let guest_memory_size_kb = 512 * 1024; let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&[ "--memory", format!("size={}K", guest_memory_size_kb).as_str(), ]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .default_disks() .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let overhead = get_vmm_overhead(child.id(), guest_memory_size_kb); eprintln!( "Guest memory overhead: {} vs {}", overhead, MAXIMUM_VMM_OVERHEAD_KB ); aver!(tb, overhead <= MAXIMUM_VMM_OVERHEAD_KB); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_disk_hotplug() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let api_socket = temp_api_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check /dev/vdc is not there aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let mut blk_file_path = dirs::home_dir().unwrap(); blk_file_path.push("workloads"); blk_file_path.push("blk.img"); let (cmd_success, cmd_output) = remote_command_w_output( &api_socket, "add-disk", Some(format!("path={},id=test0", blk_file_path.to_str().unwrap()).as_str()), ); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"test0\",\"bdf\":\"0000:00:06.0\"}") ); thread::sleep(std::time::Duration::new(10, 0)); // Check that if /dev/vdc exists and the block size is 16M. aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); // Check still there after reboot aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); aver!( tb, remote_command(&api_socket, "remove-device", Some("test0")) ); thread::sleep(std::time::Duration::new(20, 0)); // Check device has gone away aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 2); // Check device still absent aver_eq!( tb, guest .ssh_command("lsblk | grep vdc | grep -c 16M") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_pmem_hotplug() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let api_socket = temp_api_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .default_net() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check /dev/pmem0 is not there aver_eq!( tb, guest .ssh_command("lsblk | grep -c pmem0") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let mut pmem_temp_file = NamedTempFile::new().unwrap(); pmem_temp_file.as_file_mut().set_len(128 << 20).unwrap(); let (cmd_success, cmd_output) = remote_command_w_output( &api_socket, "add-pmem", Some(&format!( "file={},id=test0", pmem_temp_file.path().to_str().unwrap() )), ); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"test0\",\"bdf\":\"0000:00:06.0\"}") ); // Check that /dev/pmem0 exists and the block size is 128M aver_eq!( tb, guest .ssh_command("lsblk | grep pmem0 | grep -c 128M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); // Check still there after reboot aver_eq!( tb, guest .ssh_command("lsblk | grep pmem0 | grep -c 128M") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 1 ); aver!( tb, remote_command(&api_socket, "remove-device", Some("test0")) ); thread::sleep(std::time::Duration::new(20, 0)); // Check device has gone away aver_eq!( tb, guest .ssh_command("lsblk | grep pmem0 | grep -c 128M") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 2); // Check still absent after reboot aver_eq!( tb, guest .ssh_command("lsblk | grep pmem0 | grep -c 128M") .unwrap_or_default() .trim() .parse::() .unwrap_or(1), 0 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_net_hotplug() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("vmlinux"); let api_socket = temp_api_path(&guest.tmp_dir); // Boot without network let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .default_disks() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Add network let (cmd_success, cmd_output) = remote_command_w_output( &api_socket, "add-net", Some(guest.default_net_string().as_str()), ); aver!(tb, cmd_success); aver!( tb, String::from_utf8_lossy(&cmd_output) .contains("{\"id\":\"_net2\",\"bdf\":\"0000:00:05.0\"}") ); // 1 network interfaces + default localhost ==> 2 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 2 ); guest.ssh_command("sudo reboot").unwrap_or_default(); thread::sleep(std::time::Duration::new(20, 0)); let reboot_count = guest .ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(); aver_eq!(tb, reboot_count, 1); // Check still there after reboot // 1 network interfaces + default localhost ==> 2 interfaces aver_eq!( tb, guest .ssh_command("ip -o link | wc -l") .unwrap_or_default() .trim() .parse::() .unwrap_or_default(), 2 ); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } #[test] fn test_initramfs() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path.clone(); kernel_path.push("vmlinux"); let mut pvh_kernel_path = workload_path.clone(); pvh_kernel_path.push("vmlinux.pvh"); let mut initramfs_path = workload_path; initramfs_path.push("alpine_initramfs.img"); let test_string = String::from("axz34i9rylotd8n50wbv6kcj7f2qushme1pg"); let cmdline = format!("console=hvc0 quiet TEST_STRING={}", test_string); vec![kernel_path, pvh_kernel_path] .iter() .for_each(|k_path| { let mut child = GuestCommand::new(&guest) .args(&["--kernel", k_path.to_str().unwrap()]) .args(&["--initramfs", initramfs_path.to_str().unwrap()]) .args(&["--cmdline", &cmdline]) .capture_output() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let _ = child.kill(); match child.wait_with_output() { Ok(out) => { let s = String::from_utf8_lossy(&out.stdout); aver_ne!(tb, s.lines().position(|line| line == test_string), None); } Err(_) => aver!(tb, false), } }); Ok(()) }); } // One thing to note about this test. The virtio-net device is heavily used // through each ssh command. There's no need to perform a dedicated test to // verify the migration went well for virtio-net. #[test] fn test_snapshot_restore() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let mut workload_path = dirs::home_dir().unwrap(); workload_path.push("workloads"); let mut kernel_path = workload_path; kernel_path.push("bzImage"); let api_socket = temp_api_path(&guest.tmp_dir); let net_id = "net123"; let net_params = format!( "id={},tap=,mac={},ip={},mask=255.255.255.0", net_id, guest.network.guest_mac, guest.network.host_ip ); let cloudinit_params = if cfg!(feature = "mmio") { format!( "path={}", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) } else { format!( "path={},iommu=on", guest.disk_config.disk(DiskType::CloudInit).unwrap() ) }; let socket = temp_vsock_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .args(&["--cpus", "boot=4"]) .args(&["--memory", "size=4G"]) .args(&["--kernel", kernel_path.to_str().unwrap()]) .args(&[ "--disk", format!( "path={}", guest.disk_config.disk(DiskType::OperatingSystem).unwrap() ) .as_str(), cloudinit_params.as_str(), ]) .args(&["--net", net_params.as_str()]) .args(&["--vsock", format!("cid=3,socket={}", socket).as_str()]) .args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE]) .capture_output() .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); // Check the number of vCPUs aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 4); // Check the guest RAM aver!(tb, guest.get_total_memory().unwrap_or_default() > 3_840_000); // Check block devices are readable aver!( tb, guest .ssh_command("dd if=/dev/vda of=/dev/null bs=1M iflag=direct count=1024") .is_ok() ); aver!( tb, guest .ssh_command("dd if=/dev/vdb of=/dev/null bs=1M iflag=direct count=8") .is_ok() ); // Check if the rng device is readable aver!( tb, guest .ssh_command("head -c 1000 /dev/hwrng > /dev/null") .is_ok() ); // Check vsock guest.check_vsock(socket.as_str()); // Check if the console is usable let console_text = String::from("On a branch floating down river a cricket, singing."); let console_cmd = format!("echo {} | sudo tee /dev/hvc0", console_text); aver!(tb, guest.ssh_command(&console_cmd).is_ok()); // Only for PCI, we can check that removing and adding back the // virtio-net device does not break the snapshot/restore support // for virtio-pci. This is an important thing to test as the // hotplug will trigger a PCI BAR reprogramming, which is a good // way of checking if the stored resources are correctly restored. #[cfg(not(feature = "mmio"))] { // Unplug the virtio-net device aver!( tb, remote_command(&api_socket, "remove-device", Some(net_id),) ); thread::sleep(std::time::Duration::new(10, 0)); // Plug the virtio-net device again aver!( tb, remote_command(&api_socket, "add-net", Some(net_params.as_str()),) ); thread::sleep(std::time::Duration::new(10, 0)); } // Pause the VM aver!(tb, remote_command(&api_socket, "pause", None)); // Create the snapshot directory let snapshot_dir = temp_snapshot_dir_path(&guest.tmp_dir); // Take a snapshot from the VM aver!( tb, remote_command( &api_socket, "snapshot", Some(format!("file://{}", snapshot_dir).as_str()), ) ); // Wait to make sure the snapshot is completed thread::sleep(std::time::Duration::new(10, 0)); // Shutdown the source VM and check console output let _ = child.kill(); match child.wait_with_output() { Ok(out) => { aver!( tb, String::from_utf8_lossy(&out.stdout).contains(&console_text) ); } Err(_) => aver!(tb, false), } // Remove the vsock socket file. Command::new("rm") .arg("-f") .arg(socket.as_str()) .output() .unwrap(); // Restore the VM from the snapshot let mut child = GuestCommand::new(&guest) .args(&["--api-socket", &api_socket]) .args(&[ "--restore", format!("source_url=file://{}", snapshot_dir).as_str(), ]) .capture_output() .spawn() .unwrap(); // Wait for the VM to be restored thread::sleep(std::time::Duration::new(10, 0)); // Resume the VM aver!(tb, remote_command(&api_socket, "resume", None)); // Perform same checks to validate VM has been properly restored aver_eq!(tb, guest.get_cpu_count().unwrap_or_default(), 4); aver!(tb, guest.get_total_memory().unwrap_or_default() > 3_840_000); aver!( tb, guest .ssh_command("dd if=/dev/vda of=/dev/null bs=1M iflag=direct count=1024") .is_ok() ); aver!( tb, guest .ssh_command("dd if=/dev/vdb of=/dev/null bs=1M iflag=direct count=8") .is_ok() ); aver!( tb, guest .ssh_command("head -c 1000 /dev/hwrng > /dev/null") .is_ok() ); guest.check_vsock(socket.as_str()); aver!(tb, guest.ssh_command(&console_cmd).is_ok()); // Shutdown the target VM and check console output let _ = child.kill(); match child.wait_with_output() { Ok(out) => { aver!( tb, String::from_utf8_lossy(&out.stdout).contains(&console_text) ); } Err(_) => aver!(tb, false), } Ok(()) }); } #[cfg_attr(not(feature = "mmio"), test)] fn test_counters() { test_block!(tb, "", { let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string()); let guest = Guest::new(&mut focal); let api_socket = temp_api_path(&guest.tmp_dir); let mut child = GuestCommand::new(&guest) .args(&["--cpus", "boot=1"]) .args(&["--memory", "size=512M"]) .args(&["--kernel", guest.fw_path.as_str()]) .default_disks() .args(&["--net", guest.default_net_string().as_str()]) .args(&["--api-socket", &api_socket]) .spawn() .unwrap(); thread::sleep(std::time::Duration::new(20, 0)); let orig_counters = get_counters(&api_socket); aver!( tb, guest .ssh_command("dd if=/dev/zero of=test count=8 bs=1M") .is_ok() ); let new_counters = get_counters(&api_socket); // Check that all the counters have increased aver!(tb, new_counters > orig_counters); let _ = child.kill(); let _ = child.wait(); Ok(()) }); } } mod sequential { use crate::tests::*; #[cfg_attr(not(feature = "mmio"), test)] fn test_memory_mergeable_on() { test_memory_mergeable(true) } } }