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cloud-hypervisor/tests/integration.rs
Anatol Belski 87a4f4ae32 tests: Disable test_windows_* for mshv 
It appears that mshv is not yet there to succeed with these tests. It is
suggested to ignore them and enable later one by one as the
functionality gets fixed.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
2021-04-23 17:57:28 +02:00

6180 lines
226 KiB
Rust
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// Copyright © 2020 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
#[cfg(test)]
#[cfg(feature = "integration_tests")]
#[macro_use]
extern crate lazy_static;
#[cfg(test)]
#[cfg(feature = "integration_tests")]
extern crate test_infra;
#[cfg(test)]
#[cfg(feature = "integration_tests")]
mod tests {
use net_util::MacAddr;
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::os::unix::io::AsRawFd;
use std::path::PathBuf;
use std::process::{Child, Command, Stdio};
use std::string::String;
use std::sync::mpsc::Receiver;
use std::sync::{mpsc, Mutex};
use std::thread;
use test_infra::*;
use vmm_sys_util::{tempdir::TempDir, tempfile::TempFile};
#[cfg_attr(target_arch = "aarch64", allow(unused_imports))]
use wait_timeout::ChildExt;
lazy_static! {
static ref NEXT_VM_ID: Mutex<u8> = Mutex::new(1);
}
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> {}
#[cfg(target_arch = "x86_64")]
const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-amd64.raw";
#[cfg(target_arch = "x86_64")]
const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-custom-20210407-0.raw";
#[cfg(target_arch = "x86_64")]
const FOCAL_SGX_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-sgx.raw";
#[cfg(target_arch = "x86_64")]
const FOCAL_NVIDIA_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-nvidia.raw";
#[cfg(target_arch = "aarch64")]
const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-arm64.raw";
#[cfg(target_arch = "aarch64")]
const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-arm64-custom.raw";
#[cfg(target_arch = "aarch64")]
const FOCAL_IMAGE_NAME_QCOW2: &str = "focal-server-cloudimg-arm64-custom.qcow2";
#[cfg(target_arch = "x86_64")]
const FOCAL_IMAGE_NAME_QCOW2: &str = "focal-server-cloudimg-amd64-custom-20210407-0.qcow2";
#[cfg(target_arch = "aarch64")]
const FOCAL_IMAGE_NAME_VHD: &str = "focal-server-cloudimg-arm64-custom.vhd";
#[cfg(target_arch = "x86_64")]
const FOCAL_IMAGE_NAME_VHD: &str = "focal-server-cloudimg-amd64-custom-20210407-0.vhd";
#[cfg(target_arch = "x86_64")]
const WINDOWS_IMAGE_NAME: &str = "windows-server-2019.raw";
#[cfg(target_arch = "x86_64")]
const OVMF_NAME: &str = "OVMF-4b47d0c6c8.fd";
const DIRECT_KERNEL_BOOT_CMDLINE: &str =
"root=/dev/vda1 console=hvc0 rw systemd.journald.forward_to_console=1";
#[cfg(target_arch = "x86_64")]
const GREP_SERIAL_IRQ_CMD: &str = "cat /proc/interrupts | grep 'IO-APIC' | grep -c 'ttyS0'";
#[cfg(target_arch = "aarch64")]
const GREP_SERIAL_IRQ_CMD: &str = "cat /proc/interrupts | grep 'GICv3' | grep -c 'uart-pl011'";
const PIPE_SIZE: i32 = 32 << 20;
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),
)
}
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.as_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_virtofsd_rs_daemon(
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-rs");
let virtiofsd_path = String::from(virtiofsd_path.to_str().unwrap());
let virtiofsd_socket_path =
String::from(tmp_dir.as_path().join("virtiofs.sock").to_str().unwrap());
// Start the daemon
let child = Command::new(virtiofsd_path.as_str())
.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.as_path().join("vub.sock").to_str().unwrap());
// Start the daemon
let child = Command::new(clh_command("vhost_user_block"))
.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.as_path().join("vsock").to_str().unwrap())
}
fn temp_api_path(tmp_dir: &TempDir) -> String {
String::from(
tmp_dir
.as_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.as_path().join("snapshot").to_str().unwrap());
std::fs::create_dir(&snapshot_dir).unwrap();
snapshot_dir
}
// Creates the path for direct kernel boot and return the path.
// For x86_64, this function returns the vmlinux kernel path.
// For AArch64, this function returns the PE kernel path.
fn direct_kernel_boot_path() -> PathBuf {
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut kernel_path = workload_path;
#[cfg(target_arch = "x86_64")]
kernel_path.push("vmlinux");
#[cfg(target_arch = "aarch64")]
kernel_path.push("Image");
kernel_path
}
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.as_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("vhost_user_net"))
.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<u8>) {
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<u8>,
desired_ram: Option<usize>,
desired_balloon: Option<usize>,
) -> 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_balloon) = desired_balloon {
cmd.arg(format!("--balloon={}", desired_balloon));
}
cmd.status().expect("Failed to launch ch-remote").success()
}
fn resize_zone_command(api_socket: &str, id: &str, desired_size: &str) -> bool {
let mut cmd = Command::new(clh_command("ch-remote"));
cmd.args(&[
&format!("--api-socket={}", api_socket),
"resize-zone",
&format!("--id={}", id),
&format!("--size={}", desired_size),
]);
cmd.status().expect("Failed to launch ch-remote").success()
}
#[derive(Debug)]
enum Error {
Parsing(std::num::ParseIntError),
SshCommand(SshCommandError),
WaitForBoot(WaitForBootError),
}
impl From<SshCommandError> for Error {
fn from(e: SshCommandError) -> Self {
Self::SshCommand(e)
}
}
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_with_prefix("/tmp/ch").unwrap();
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut fw_path = workload_path;
#[cfg(target_arch = "aarch64")]
fw_path.push("Image");
#[cfg(target_arch = "x86_64")]
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),
tcp_listener_port: DEFAULT_TCP_LISTENER_PORT + id as u16,
};
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<String, SshCommandError> {
ssh_command_ip(
command,
&self.network.guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
}
fn ssh_command_l1(&self, command: &str) -> Result<String, SshCommandError> {
ssh_command_ip(
command,
&self.network.guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
}
fn ssh_command_l2_1(&self, command: &str) -> Result<String, SshCommandError> {
ssh_command_ip(
command,
&self.network.l2_guest_ip1,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
}
fn ssh_command_l2_2(&self, command: &str) -> Result<String, SshCommandError> {
ssh_command_ip(
command,
&self.network.l2_guest_ip2,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
}
fn ssh_command_l2_3(&self, command: &str) -> Result<String, SshCommandError> {
ssh_command_ip(
command,
&self.network.l2_guest_ip3,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
}
fn api_create_body(&self, cpu_count: u8) -> String {
#[cfg(target_arch = "x86_64")]
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(),
}
#[cfg(target_arch = "aarch64")]
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,
direct_kernel_boot_path().to_str().unwrap(),
DIRECT_KERNEL_BOOT_CMDLINE,
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<u32, Error> {
self.ssh_command("grep -c processor /proc/cpuinfo")?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn get_initial_apicid(&self) -> Result<u32, Error> {
self.ssh_command("grep \"initial apicid\" /proc/cpuinfo | grep -o \"[0-9]*\"")?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn get_total_memory(&self) -> Result<u32, Error> {
self.ssh_command("grep MemTotal /proc/meminfo | grep -o \"[0-9]*\"")?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn get_total_memory_l2(&self) -> Result<u32, Error> {
self.ssh_command_l2_1("grep MemTotal /proc/meminfo | grep -o \"[0-9]*\"")?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn get_numa_node_memory(&self, node_id: usize) -> Result<u32, Error> {
self.ssh_command(
format!(
"grep MemTotal /sys/devices/system/node/node{}/meminfo \
| cut -d \":\" -f 2 | grep -o \"[0-9]*\"",
node_id
)
.as_str(),
)?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn wait_vm_boot(&self, custom_timeout: Option<i32>) -> Result<(), Error> {
self.network
.wait_vm_boot(custom_timeout)
.map_err(Error::WaitForBoot)
}
fn check_numa_node_cpus(&self, node_id: usize, cpus: Vec<usize>) -> Result<bool, Error> {
for cpu in cpus.iter() {
let cmd = format!(
"[ -d \"/sys/devices/system/node/node{}/cpu{}\" ] && echo ok",
node_id, cpu
);
if self.ssh_command(cmd.as_str())?.trim() != "ok" {
return Ok(false);
}
}
Ok(true)
}
fn check_numa_node_distances(
&self,
node_id: usize,
distances: &str,
) -> Result<bool, Error> {
let cmd = format!("cat /sys/devices/system/node/node{}/distance", node_id);
if self.ssh_command(cmd.as_str())?.trim() == distances {
Ok(true)
} else {
Ok(false)
}
}
fn check_sgx_support(&self) -> Result<bool, Error> {
if self
.ssh_command(
"cpuid -l 0x7 -s 0 | tr -s [:space:] | grep -q 'SGX: \
Software Guard Extensions supported = true' && echo ok",
)?
.trim()
!= "ok"
{
return Ok(false);
}
if self
.ssh_command(
"cpuid -l 0x7 -s 0 | tr -s [:space:] | grep -q 'SGX_LC: \
SGX launch config supported = true' && echo ok",
)?
.trim()
!= "ok"
{
return Ok(false);
}
if self
.ssh_command(
"cpuid -l 0x12 -s 0 | tr -s [:space:] | grep -q 'SGX1 \
supported = true' && echo ok",
)?
.trim()
!= "ok"
{
return Ok(false);
}
Ok(true)
}
fn get_entropy(&self) -> Result<u32, Error> {
self.ssh_command("cat /proc/sys/kernel/random/entropy_avail")?
.trim()
.parse()
.map_err(Error::Parsing)
}
fn get_pci_bridge_class(&self) -> Result<String, Error> {
Ok(self
.ssh_command("cat /sys/bus/pci/devices/0000:00:00.0/class")?
.trim()
.to_string())
}
fn get_pci_device_ids(&self) -> Result<String, Error> {
Ok(self
.ssh_command("cat /sys/bus/pci/devices/*/device")?
.trim()
.to_string())
}
fn get_pci_vendor_ids(&self) -> Result<String, Error> {
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<bool, Error> {
// 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<u64>,
) -> Result<bool, Error> {
// SHM region is called different things depending on kernel
let shm_region = self
.ssh_command("sudo grep 'virtio[0-9]\\|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:<domain>:<protocol>:<local-address>
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<Child> {
println!(
"\n\n==== Start cloud-hypervisor command-line ====\n\n\
{:?}\n\
\n==== End cloud-hypervisor command-line ====\n\n",
self.command
);
if self.capture_output {
let child = self
.command
.arg("-v")
.stderr(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.unwrap();
let fd = child.stdout.as_ref().unwrap().as_raw_fd();
let pipesize = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
let fd = child.stderr.as_ref().unwrap().as_raw_fd();
let pipesize1 = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
if pipesize >= PIPE_SIZE && pipesize1 >= PIPE_SIZE {
Ok(child)
} else {
Err(std::io::Error::new(
std::io::ErrorKind::Other,
"resizing pipe w/ 'fnctl' failed!",
))
}
} else {
self.command.arg("-v").spawn()
}
}
fn args<I, S>(&mut self, args: I) -> &mut Self
where
I: IntoIterator<Item = S>,
S: AsRef<OsStr>,
{
self.command.args(args);
self
}
fn default_disks(&mut self) -> &mut Self {
if self.guest.disk_config.disk(DiskType::CloudInit).is_some() {
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(),
])
} else {
self.args(&[
"--disk",
format!(
"path={}",
self.guest
.disk_config
.disk(DiskType::OperatingSystem)
.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) {
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", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(
guest.get_cpu_count().unwrap_or_default(),
u32::from(total_vcpus)
);
assert_eq!(
guest
.ssh_command("lscpu | grep \"per core\" | cut -f 2 -d \":\" | sed \"s# *##\"")
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(0),
threads_per_core
);
assert_eq!(
guest
.ssh_command("lscpu | grep \"per socket\" | cut -f 2 -d \":\" | sed \"s# *##\"")
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(0),
cores_per_package
);
assert_eq!(
guest
.ssh_command("lscpu | grep \"Socket\" | cut -f 2 -d \":\" | sed \"s# *##\"")
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(0),
packages
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
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>,
generate_host_mac: bool,
) {
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 kernel_path = direct_kernel_boot_path();
let host_mac = if generate_host_mac {
Some(MacAddr::local_random())
} else {
None
};
let (net_params, daemon_child) = {
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 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])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
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");
assert_eq!(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");
assert_eq!(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.
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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.
#[cfg(target_arch = "x86_64")]
let grep_cmd = "grep -c PCI-MSI /proc/interrupts";
#[cfg(target_arch = "aarch64")]
let grep_cmd = "grep -c ITS-MSI /proc/interrupts";
assert_eq!(
guest
.ssh_command(grep_cmd)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
10 + (num_queues as u32)
);
// ACPI feature is needed.
#[cfg(feature = "acpi")]
{
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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.
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
}
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
if let Some(mut daemon_child) = daemon_child {
thread::sleep(std::time::Duration::new(5, 0));
let _ = daemon_child.kill();
let _ = daemon_child.wait();
}
handle_child_output(r, &output);
}
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>,
) {
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 kernel_path = direct_kernel_boot_path();
let (blk_params, daemon_child) = {
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 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])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check both if /dev/vdc exists and if the block size is 16M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check if this block is RO or RW.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | awk '{print $5}'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
readonly as u32
);
// Check if the number of queues in /sys/block/vdc/mq matches the
// expected num_queues.
assert_eq!(
guest
.ssh_command("ls -ll /sys/block/vdc/mq | grep ^d | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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").unwrap();
guest
.ssh_command(
format!(
"sudo mount -o {} -t ext4 /dev/vdc mount_image/",
mount_ro_rw_flag
)
.as_str(),
)
.unwrap();
// Check the content of the block device. The file "foo" should
// contain "bar".
assert_eq!(
guest.ssh_command("cat mount_image/foo").unwrap().trim(),
"bar"
);
// ACPI feature is needed.
#[cfg(feature = "acpi")]
{
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
// Check again the content of the block device after the resize
// has been performed.
assert_eq!(
guest.ssh_command("cat mount_image/foo").unwrap().trim(),
"bar"
);
}
// Unmount the device
guest.ssh_command("sudo umount /dev/vdc").unwrap();
guest.ssh_command("rm -r mount_image").unwrap();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
if let Some(mut daemon_child) = daemon_child {
thread::sleep(std::time::Duration::new(5, 0));
let _ = daemon_child.kill();
let _ = daemon_child.wait();
}
handle_child_output(r, &output);
}
fn test_boot_from_vhost_user_blk(
num_queues: usize,
readonly: bool,
direct: bool,
prepare_vhost_user_blk_daemon: Option<&PrepareBlkDaemon>,
) {
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 kernel_path = direct_kernel_boot_path();
let disk_path = guest.disk_config.disk(DiskType::OperatingSystem).unwrap();
let (blk_boot_params, daemon_child) = {
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 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()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Just check the VM booted correctly.
assert_eq!(guest.get_cpu_count().unwrap_or_default(), num_queues as u32);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
if let Some(mut daemon_child) = daemon_child {
thread::sleep(std::time::Duration::new(5, 0));
let _ = daemon_child.kill();
let _ = daemon_child.wait();
}
handle_child_output(r, &output);
}
fn test_virtio_fs(
dax: bool,
cache_size: Option<u64>,
virtiofsd_cache: &str,
prepare_daemon: &dyn Fn(&TempDir, &str, &str) -> (std::process::Child, String),
hotplug: bool,
) {
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;
shared_dir.push("shared_dir");
let kernel_path = direct_kernel_boot_path();
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()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.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.capture_output().spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
if hotplug {
// Add fs to the VM
let (cmd_success, cmd_output) =
remote_command_w_output(&api_socket, "add-fs", Some(&fs_params));
assert!(cmd_success);
assert!(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
);
assert_eq!(guest.ssh_command(&mount_cmd).unwrap().trim(), "ok");
assert_eq!(
guest
.valid_virtio_fs_cache_size(dax, cache_size)
.unwrap_or_default(),
true
);
// Check file1 exists and its content is "foo"
assert_eq!(
guest.ssh_command("cat mount_dir/file1").unwrap().trim(),
"foo"
);
// Check file2 does not exist
assert_ne!(
guest.ssh_command("ls mount_dir/file2").unwrap().trim(),
"mount_dir/file2"
);
// Check file3 exists and its content is "bar"
assert_eq!(
guest.ssh_command("cat mount_dir/file3").unwrap().trim(),
"bar"
);
// ACPI feature is needed.
#[cfg(feature = "acpi")]
{
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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(30, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
// After the resize, check again that file1 exists and its
// content is "foo".
assert_eq!(
guest.ssh_command("cat mount_dir/file1").unwrap().trim(),
"foo"
);
}
if hotplug {
// Remove from VM
assert_eq!(
guest
.ssh_command("sudo umount mount_dir && echo ok")
.unwrap()
.trim(),
"ok"
);
assert!(remote_command(&api_socket, "remove-device", Some("myfs0")));
}
});
let (r, hotplug_daemon_child) = if r.is_ok() && hotplug {
thread::sleep(std::time::Duration::new(10, 0));
let (daemon_child, virtiofsd_socket_path) = prepare_daemon(
&guest.tmp_dir,
shared_dir.to_str().unwrap(),
virtiofsd_cache,
);
let r = std::panic::catch_unwind(|| {
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));
assert!(cmd_success);
assert!(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
);
assert_eq!(guest.ssh_command(&mount_cmd).unwrap().trim(), "ok");
// Check file1 exists and its content is "foo"
assert_eq!(
guest.ssh_command("cat mount_dir/file1").unwrap().trim(),
"foo"
);
});
(r, Some(daemon_child))
} else {
(r, None)
};
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = daemon_child.kill();
let _ = daemon_child.wait();
if let Some(mut daemon_child) = hotplug_daemon_child {
let _ = daemon_child.kill();
let _ = daemon_child.wait();
}
handle_child_output(r, &output);
}
fn test_virtio_pmem(discard_writes: bool, specify_size: bool) {
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 kernel_path = direct_kernel_boot_path();
let pmem_temp_file = TempFile::new().unwrap();
pmem_temp_file.as_file().set_len(128 << 20).unwrap();
std::process::Command::new("mkfs.ext4")
.arg(pmem_temp_file.as_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.as_path().to_str().unwrap(),
if specify_size { ",size=128M" } else { "" },
if discard_writes {
",discard_writes=on"
} else {
""
}
)
.as_str(),
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check for the presence of /dev/pmem0
assert_eq!(
guest.ssh_command("ls /dev/pmem0").unwrap().trim(),
"/dev/pmem0"
);
// Check changes persist after reboot
assert_eq!(guest.ssh_command("sudo mount /dev/pmem0 /mnt").unwrap(), "");
assert_eq!(guest.ssh_command("ls /mnt").unwrap(), "lost+found\n");
guest
.ssh_command("echo test123 | sudo tee /mnt/test")
.unwrap();
assert_eq!(guest.ssh_command("sudo umount /mnt").unwrap(), "");
assert_eq!(guest.ssh_command("ls /mnt").unwrap(), "");
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
assert_eq!(guest.ssh_command("sudo mount /dev/pmem0 /mnt").unwrap(), "");
assert_eq!(
guest.ssh_command("sudo cat /mnt/test").unwrap().trim(),
if discard_writes { "" } else { "test123" }
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
fn get_fd_count(pid: u32) -> usize {
fs::read_dir(format!("/proc/{}/fd", pid)).unwrap().count()
}
fn _test_virtio_vsock(hotplug: bool) {
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 kernel_path = direct_kernel_boot_path();
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.capture_output().spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
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()),
);
assert!(cmd_success);
assert!(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
assert!(!remote_command(
&api_socket,
"add-vsock",
Some("cid=1234,socket=/tmp/fail")
));
}
// Validate vsock works as expected.
guest.check_vsock(socket.as_str());
// AArch64 currently does not support reboot, and therefore we
// skip the reboot test here.
#[cfg(target_arch = "x86_64")]
{
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1);
assert_eq!(reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Validate vsock still works after a reboot.
guest.check_vsock(socket.as_str());
}
if hotplug {
assert!(remote_command(&api_socket, "remove-device", Some("test0")));
}
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
fn get_ksm_pages_shared() -> u32 {
fs::read_to_string("/sys/kernel/mm/ksm/pages_shared")
.unwrap()
.trim()
.parse::<u32>()
.unwrap()
}
fn test_memory_mergeable(mergeable: bool) {
let memory_param = if mergeable {
"mergeable=on"
} else {
"mergeable=off"
};
// We are assuming the rest of the system in our CI is not using mergeable memeory
let ksm_ps_init = get_ksm_pages_shared();
assert!(ksm_ps_init == 0);
let mut focal1 = 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", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(&["--net", guest1.default_net_string().as_str()])
.args(&["--serial", "tty", "--console", "off"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest1.wait_vm_boot(None).unwrap();
});
if r.is_err() {
let _ = child1.kill();
let output = child1.wait_with_output().unwrap();
handle_child_output(r, &output);
panic!("Test should already be failed/panicked"); // To explicitly mark this block never return
}
let ksm_ps_guest1 = get_ksm_pages_shared();
let mut focal2 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
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", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(&["--net", guest2.default_net_string().as_str()])
.args(&["--serial", "tty", "--console", "off"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest2.wait_vm_boot(None).unwrap();
let ksm_ps_guest2 = get_ksm_pages_shared();
if mergeable {
println!(
"ksm pages_shared after vm1 booted '{}', ksm pages_shared after vm2 booted '{}'",
ksm_ps_guest1, ksm_ps_guest2
);
// We are expecting the number of shared pages to increase as the number of VM increases
assert!(ksm_ps_guest1 < ksm_ps_guest2);
} else {
assert!(ksm_ps_guest1 == 0);
assert!(ksm_ps_guest2 == 0);
}
});
let _ = child1.kill();
let _ = child2.kill();
let output = child1.wait_with_output().unwrap();
child2.wait().unwrap();
handle_child_output(r, &output);
}
fn _get_vmm_overhead(pid: u32, guest_memory_size: u32) -> HashMap<String, u32> {
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::<u32>().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::<u32>().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,
write_bytes,
read_ops,
write_ops,
}
}
fn pty_read(mut pty: std::fs::File) -> Receiver<String> {
let (tx, rx) = mpsc::channel::<String>();
thread::spawn(move || loop {
thread::sleep(std::time::Duration::new(1, 0));
let mut buf = [0; 512];
match pty.read(&mut buf) {
Ok(_) => {
let output = std::str::from_utf8(&buf).unwrap().to_string();
match tx.send(output) {
Ok(_) => (),
Err(_) => break,
}
}
Err(_) => break,
}
});
rx
}
fn get_pty_path(api_socket: &str, pty_type: &str) -> PathBuf {
let (cmd_success, cmd_output) = remote_command_w_output(&api_socket, "info", None);
assert!(cmd_success);
let info: serde_json::Value = serde_json::from_slice(&cmd_output).unwrap_or_default();
assert_eq!("Pty", info["config"][pty_type]["mode"]);
PathBuf::from(
info["config"][pty_type]["file"]
.as_str()
.expect("Missing pty path"),
)
}
// VFIO test network setup.
// We reserve a different IP class for it: 172.18.0.0/24.
fn setup_vfio_network_interfaces() {
// 'vfio-br0'
Command::new("bash")
.arg("-c")
.arg("sudo ip link add name vfio-br0 type bridge")
.output()
.expect("Failed to create 'vfio-br0'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-br0 up")
.output()
.expect("Failed to create 'vfio-br0'");
Command::new("bash")
.arg("-c")
.arg("sudo ip addr add 172.18.0.1/24 dev vfio-br0")
.output()
.expect("Failed to create 'vfio-br0'");
// 'vfio-tap0'
Command::new("bash")
.arg("-c")
.arg("sudo ip tuntap add vfio-tap0 mode tap")
.output()
.expect("Failed to create 'vfio-tap0'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap0 master vfio-br0")
.output()
.expect("Failed to create 'vfio-tap0'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap0 up")
.output()
.expect("Failed to create 'vfio-tap0'");
// 'vfio-tap1'
Command::new("bash")
.arg("-c")
.arg("sudo ip tuntap add vfio-tap1 mode tap")
.output()
.expect("Failed to create 'vfio-tap1'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap1 master vfio-br0")
.output()
.expect("Failed to create 'vfio-tap1'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap1 up")
.output()
.expect("Failed to create 'vfio-tap1'");
// 'vfio-tap2'
Command::new("bash")
.arg("-c")
.arg("sudo ip tuntap add vfio-tap2 mode tap")
.output()
.expect("Failed to create 'vfio-tap2'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap2 master vfio-br0")
.output()
.expect("Failed to create 'vfio-tap2'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap2 up")
.output()
.expect("Failed to create 'vfio-tap2'");
// 'vfio-tap3'
Command::new("bash")
.arg("-c")
.arg("sudo ip tuntap add vfio-tap3 mode tap")
.output()
.expect("Failed to create 'vfio-tap3'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap3 master vfio-br0")
.output()
.expect("Failed to create 'vfio-tap3'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link set vfio-tap3 up")
.output()
.expect("Failed to create 'vfio-tap3'");
}
// Tear VFIO test network down
fn cleanup_vfio_network_interfaces() {
Command::new("bash")
.arg("-c")
.arg("sudo ip link del vfio-br0")
.output()
.expect("Failed to delete 'vfio-br0'");
Command::new("bash")
.arg("-c")
.arg("sudo ip link del vfio-tap0")
.output()
.expect("Failed to delete ''");
Command::new("bash")
.arg("-c")
.arg("sudo ip link del vfio-tap1")
.output()
.expect("Failed to delete ''");
Command::new("bash")
.arg("-c")
.arg("sudo ip link del vfio-tap2")
.output()
.expect("Failed to delete ''");
Command::new("bash")
.arg("-c")
.arg("sudo ip link del vfio-tap3")
.output()
.expect("Failed to delete ''");
}
mod parallel {
use crate::tests::*;
#[test]
#[cfg(target_arch = "x86_64")]
fn test_simple_launch() {
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_disks()
.default_net()
.args(&["--serial", "tty", "--console", "off"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(Some(120)).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert_eq!(guest.get_initial_apicid().unwrap_or(1), 0);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
assert_eq!(guest.get_pci_bridge_class().unwrap_or_default(), "0x060000");
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
});
}
#[test]
fn test_multi_cpu() {
let mut bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string());
let guest = Guest::new(&mut bionic);
let mut cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=2,max=4"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.capture_output()
.default_disks()
.default_net();
let mut child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(Some(120)).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 2);
#[cfg(target_arch = "x86_64")]
assert_eq!(
guest
.ssh_command(
r#"dmesg | grep "smpboot: Allowing" | sed "s/\[\ *[0-9.]*\] //""#
)
.unwrap()
.trim(),
"smpboot: Allowing 4 CPUs, 2 hotplug CPUs"
);
#[cfg(target_arch = "aarch64")]
assert_eq!(
guest
.ssh_command(
r#"dmesg | grep "smp: Brought up" | sed "s/\[\ *[0-9.]*\] //""#
)
.unwrap()
.trim(),
"smp: Brought up 1 node, 2 CPUs"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_cpu_topology_421() {
test_cpu_topology(4, 2, 1);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_cpu_topology_142() {
test_cpu_topology(1, 4, 2);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_cpu_topology_262() {
test_cpu_topology(2, 6, 2);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_cpu_physical_bits() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let max_phys_bits: u8 = 36;
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", &format!("max_phys_bits={}", max_phys_bits)])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(
guest
.ssh_command("lscpu | grep \"Address sizes:\" | cut -f 2 -d \":\" | sed \"s# *##\" | cut -f 1 -d \" \"")
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(max_phys_bits + 1) <= max_phys_bits,
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_large_vm() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=48"])
.args(&["--memory", "size=5120M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.capture_output()
.default_disks()
.default_net();
let mut child = cmd.spawn().unwrap();
guest.wait_vm_boot(None).unwrap();
let r = std::panic::catch_unwind(|| {
assert!(guest.get_total_memory().unwrap_or_default() > 5_000_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_huge_memory() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=128G"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.capture_output()
.default_disks()
.default_net();
let mut child = cmd.spawn().unwrap();
guest.wait_vm_boot(Some(120)).unwrap();
let r = std::panic::catch_unwind(|| {
assert!(guest.get_total_memory().unwrap_or_default() > 128_000_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_power_button() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut cmd = GuestCommand::new(&guest);
let api_socket = temp_api_path(&guest.tmp_dir);
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.capture_output()
.default_disks()
.default_net()
.args(&["--api-socket", &api_socket]);
let child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(remote_command(&api_socket, "power-button", None));
});
let output = child.wait_with_output().unwrap();
assert!(output.status.success());
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_user_defined_memory_regions() {
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 kernel_path = direct_kernel_boot_path();
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=0,hotplug_method=virtio-mem"])
.args(&[
"--memory-zone",
"id=mem0,size=1G,hotplug_size=2G",
"id=mem1,size=1G,file=/dev/shm",
"id=mem2,size=1G,host_numa_node=0,hotplug_size=2G",
])
.args(&["--kernel", kernel_path.to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(&["--api-socket", &api_socket])
.capture_output()
.default_disks()
.default_net()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(guest.get_total_memory().unwrap_or_default() > 2_880_000);
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
resize_zone_command(&api_socket, "mem0", "3G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 4_800_000);
resize_zone_command(&api_socket, "mem2", "3G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 6_720_000);
resize_zone_command(&api_socket, "mem0", "2G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
resize_zone_command(&api_socket, "mem2", "2G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 4_800_000);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Check the amount of RAM after reboot
assert!(guest.get_total_memory().unwrap_or_default() > 4_800_000);
assert!(guest.get_total_memory().unwrap_or_default() < 5_760_000);
// Check if we can still resize down to the initial 'boot'size
resize_zone_command(&api_socket, "mem0", "1G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() < 4_800_000);
resize_zone_command(&api_socket, "mem2", "1G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() < 3_840_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_guest_numa_nodes() {
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 kernel_path = direct_kernel_boot_path();
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=6"])
.args(&["--memory", "size=0,hotplug_method=virtio-mem"])
.args(&[
"--memory-zone",
"id=mem0,size=1G,hotplug_size=3G",
"id=mem1,size=2G,hotplug_size=3G",
"id=mem2,size=3G,hotplug_size=3G",
])
.args(&[
"--numa",
"guest_numa_id=0,cpus=0-2,distances=1@15:2@20,memory_zones=mem0",
"guest_numa_id=1,cpus=3-4,distances=0@20:2@25,memory_zones=mem1",
"guest_numa_id=2,cpus=5,distances=0@25:1@30,memory_zones=mem2",
])
.args(&["--kernel", kernel_path.to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(&["--api-socket", &api_socket])
.capture_output()
.default_disks()
.default_net()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check each NUMA node has been assigned the right amount of
// memory.
assert!(guest.get_numa_node_memory(0).unwrap_or_default() > 960_000);
assert!(guest.get_numa_node_memory(1).unwrap_or_default() > 1_920_000);
assert!(guest.get_numa_node_memory(2).unwrap_or_default() > 2_880_000);
// Check each NUMA node has been assigned the right CPUs set.
assert!(guest.check_numa_node_cpus(0, vec![0, 1, 2]).unwrap());
assert!(guest.check_numa_node_cpus(1, vec![3, 4]).unwrap());
assert!(guest.check_numa_node_cpus(2, vec![5]).unwrap());
// Check each NUMA node has been assigned the right distances.
assert!(guest.check_numa_node_distances(0, "10 15 20").unwrap());
assert!(guest.check_numa_node_distances(1, "20 10 25").unwrap());
assert!(guest.check_numa_node_distances(2, "25 30 10").unwrap());
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// Resize every memory zone and check each associated NUMA node
// has been assigned the right amount of memory.
resize_zone_command(&api_socket, "mem0", "4G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_numa_node_memory(0).unwrap_or_default() > 3_840_000);
resize_zone_command(&api_socket, "mem1", "4G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_numa_node_memory(1).unwrap_or_default() > 3_840_000);
resize_zone_command(&api_socket, "mem2", "4G");
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_numa_node_memory(2).unwrap_or_default() > 3_840_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_pci_msi() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.capture_output()
.default_disks()
.default_net();
let mut child = cmd.spawn().unwrap();
guest.wait_vm_boot(None).unwrap();
#[cfg(target_arch = "x86_64")]
let grep_cmd = "grep -c PCI-MSI /proc/interrupts";
#[cfg(target_arch = "aarch64")]
let grep_cmd = "grep -c ITS-MSI /proc/interrupts";
let r = std::panic::catch_unwind(|| {
assert_eq!(
guest
.ssh_command(grep_cmd)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
12
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vmlinux_boot() {
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 kernel_path = direct_kernel_boot_path();
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()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
assert_eq!(
guest
.ssh_command("grep -c PCI-MSI /proc/interrupts")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
12
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "aarch64")]
fn test_aarch64_pe_boot() {
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 kernel_path = direct_kernel_boot_path();
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(&["--seccomp", "false"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(Some(120)).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
});
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_pvh_boot() {
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()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
assert_eq!(
guest
.ssh_command("grep -c PCI-MSI /proc/interrupts")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
12
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_bzimage_boot() {
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(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
assert_eq!(
guest
.ssh_command("grep -c PCI-MSI /proc/interrupts")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
12
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
fn _test_virtio_block(image_name: &str, disable_io_uring: bool) {
let mut focal = UbuntuDiskConfig::new(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;
blk_file_path.push("blk.img");
let kernel_path = direct_kernel_boot_path();
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,_disable_io_uring={}",
blk_file_path.to_str().unwrap(),
disable_io_uring
)
.as_str(),
])
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check both if /dev/vdc exists and if the block size is 16M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check both if /dev/vdc exists and if this block is RO.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | awk '{print $5}'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check if the number of queues is 4.
assert_eq!(
guest
.ssh_command("ls -ll /sys/block/vdc/mq | grep ^d | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
4
);
});
let _ = cloud_child.kill();
let output = cloud_child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_virtio_block() {
_test_virtio_block(FOCAL_IMAGE_NAME, false)
}
#[test]
fn test_virtio_block_disable_io_uring() {
_test_virtio_block(FOCAL_IMAGE_NAME, true)
}
#[test]
fn test_virtio_block_qcow2() {
_test_virtio_block(FOCAL_IMAGE_NAME_QCOW2, false)
}
#[test]
fn test_virtio_block_vhd() {
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut raw_file_path = workload_path.clone();
let mut vhd_file_path = workload_path;
raw_file_path.push(FOCAL_IMAGE_NAME);
vhd_file_path.push(FOCAL_IMAGE_NAME_VHD);
// Generate VHD file from RAW file
std::process::Command::new("qemu-img")
.arg("convert")
.arg("-p")
.args(&["-f", "raw"])
.args(&["-O", "vpc"])
.args(&["-o", "subformat=fixed"])
.arg(raw_file_path.to_str().unwrap())
.arg(vhd_file_path.to_str().unwrap())
.output()
.expect("Expect generating VHD image from RAW image");
_test_virtio_block(FOCAL_IMAGE_NAME_VHD, false)
}
#[test]
fn test_vhost_user_net_default() {
test_vhost_user_net(None, 2, Some(&prepare_vhost_user_net_daemon), false)
}
#[test]
fn test_vhost_user_net_named_tap() {
test_vhost_user_net(
Some("mytap0"),
2,
Some(&prepare_vhost_user_net_daemon),
false,
)
}
#[test]
fn test_vhost_user_net_existing_tap() {
test_vhost_user_net(
Some("vunet-tap0"),
2,
Some(&prepare_vhost_user_net_daemon),
false,
)
}
#[test]
fn test_vhost_user_net_multiple_queues() {
test_vhost_user_net(None, 4, Some(&prepare_vhost_user_net_daemon), 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,
)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vhost_user_net_host_mac() {
test_vhost_user_net(None, 2, Some(&prepare_vhost_user_net_daemon), true)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vhost_user_blk_default() {
test_vhost_user_blk(2, false, false, Some(&prepare_vubd))
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vhost_user_blk_readonly() {
test_vhost_user_blk(1, true, false, Some(&prepare_vubd))
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vhost_user_blk_direct() {
test_vhost_user_blk(1, false, true, Some(&prepare_vubd))
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_boot_from_vhost_user_blk_default() {
test_boot_from_vhost_user_blk(1, false, false, Some(&prepare_vubd))
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_split_irqchip() {
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", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(
guest
.ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'timer'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
assert_eq!(
guest
.ssh_command("cat /proc/interrupts | grep 'IO-APIC' | grep -c 'cascade'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[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_virtiofsd_rs_daemon() {
test_virtio_fs(true, None, "none", &prepare_virtofsd_rs_daemon, false)
}
#[test]
fn test_virtio_fs_dax_on_cache_size_1_gib_w_virtiofsd_rs_daemon() {
test_virtio_fs(
true,
Some(0x4000_0000),
"none",
&prepare_virtofsd_rs_daemon,
false,
)
}
#[test]
fn test_virtio_fs_dax_off_w_virtiofsd_rs_daemon() {
test_virtio_fs(false, None, "none", &prepare_virtofsd_rs_daemon, false)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_fs_hotplug_dax_on() {
test_virtio_fs(true, None, "none", &prepare_virtiofsd, true)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_fs_hotplug_dax_off() {
test_virtio_fs(false, None, "none", &prepare_virtiofsd, true)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_fs_hotplug_dax_on_w_virtiofsd_rs_daemon() {
test_virtio_fs(true, None, "none", &prepare_virtofsd_rs_daemon, true)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_fs_hotplug_dax_off_w_virtiofsd_rs_daemon() {
test_virtio_fs(false, None, "none", &prepare_virtofsd_rs_daemon, true)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_pmem_persist_writes() {
test_virtio_pmem(false, false)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_pmem_discard_writes() {
test_virtio_pmem(true, false)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_pmem_with_size() {
test_virtio_pmem(true, true)
}
#[test]
fn test_boot_from_virtio_pmem() {
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 kernel_path = direct_kernel_boot_path();
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::OperatingSystem).unwrap(),
fs::metadata(&guest.disk_config.disk(DiskType::OperatingSystem).unwrap())
.unwrap()
.len()
)
.as_str(),
])
.args(&[
"--cmdline",
DIRECT_KERNEL_BOOT_CMDLINE
.replace("vda1", "pmem0p1")
.as_str(),
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Simple checks to validate the VM booted properly
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_multiple_network_interfaces() {
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 kernel_path = direct_kernel_boot_path();
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",
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
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");
assert_eq!(String::from_utf8_lossy(&tap_count.stdout).trim(), "1");
// 3 network interfaces + default localhost ==> 4 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
4
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_serial_off() {
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", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.args(&["--serial", "off"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Test that there is no ttyS0
assert_eq!(
guest
.ssh_command(GREP_SERIAL_IRQ_CMD)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_serial_null() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut cmd = GuestCommand::new(&guest);
#[cfg(target_arch = "x86_64")]
let console_str: &str = "console=ttyS0";
#[cfg(target_arch = "aarch64")]
let console_str: &str = "console=ttyAMA0";
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&[
"--cmdline",
DIRECT_KERNEL_BOOT_CMDLINE
.replace("console=hvc0 ", console_str)
.as_str(),
])
.default_disks()
.default_net()
.args(&["--serial", "null"])
.args(&["--console", "off"])
.capture_output();
let mut child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Test that there is a ttyS0
assert_eq!(
guest
.ssh_command(GREP_SERIAL_IRQ_CMD)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
assert!(!String::from_utf8_lossy(&output.stdout).contains("cloud login:"));
});
handle_child_output(r, &output);
}
#[test]
fn test_serial_tty() {
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 kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "x86_64")]
let console_str: &str = "console=ttyS0";
#[cfg(target_arch = "aarch64")]
let console_str: &str = "console=ttyAMA0";
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
.replace("console=hvc0 ", console_str)
.as_str(),
])
.default_disks()
.default_net()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Test that there is a ttyS0
assert_eq!(
guest
.ssh_command(GREP_SERIAL_IRQ_CMD)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
});
// This sleep is needed to wait for the login prompt
thread::sleep(std::time::Duration::new(2, 0));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&output.stdout).contains("cloud login:"));
});
handle_child_output(r, &output);
}
#[test]
fn test_serial_file() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let serial_path = guest.tmp_dir.as_path().join("/tmp/serial-output");
#[cfg(target_arch = "x86_64")]
let console_str: &str = "console=ttyS0";
#[cfg(target_arch = "aarch64")]
let console_str: &str = "console=ttyAMA0";
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&[
"--cmdline",
DIRECT_KERNEL_BOOT_CMDLINE
.replace("console=hvc0 ", console_str)
.as_str(),
])
.default_disks()
.default_net()
.args(&[
"--serial",
format!("file={}", serial_path.to_str().unwrap()).as_str(),
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Test that there is a ttyS0
assert_eq!(
guest
.ssh_command(GREP_SERIAL_IRQ_CMD)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
guest.ssh_command("sudo shutdown -h now").unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(20));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
// Check that the cloud-hypervisor binary actually terminated
assert_eq!(output.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).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert!(buf.contains("cloud login:"));
});
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_pty_interaction() {
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 cmdline = DIRECT_KERNEL_BOOT_CMDLINE.to_owned() + " console=ttyS0";
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", &cmdline])
.default_disks()
.default_net()
.args(&["--serial", "null"])
.args(&["--console", "pty"])
.args(&["--api-socket", &api_socket])
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Get pty fd for console
let console_path = get_pty_path(&api_socket, "console");
// TODO: Get serial pty test working
let mut cf = std::fs::OpenOptions::new()
.write(true)
.read(true)
.open(console_path)
.unwrap();
// Some dumb sleeps but we don't want to write
// before the console is up and we don't want
// to try and write the next line before the
// login process is ready.
thread::sleep(std::time::Duration::new(5, 0));
assert_eq!(cf.write(b"cloud\n").unwrap(), 6);
thread::sleep(std::time::Duration::new(2, 0));
assert_eq!(cf.write(b"cloud123\n").unwrap(), 9);
thread::sleep(std::time::Duration::new(2, 0));
assert_eq!(cf.write(b"echo test_pty_console\n").unwrap(), 22);
thread::sleep(std::time::Duration::new(2, 0));
// read pty and ensure they have a login shell
// some fairly hacky workarounds to avoid looping
// forever in case the channel is blocked getting output
let ptyc = pty_read(cf);
let mut empty = 0;
let mut prev = String::new();
loop {
thread::sleep(std::time::Duration::new(2, 0));
match ptyc.try_recv() {
Ok(line) => {
empty = 0;
prev = prev + &line;
if prev.contains("test_pty_console") {
break;
}
}
Err(mpsc::TryRecvError::Empty) => {
empty += 1;
if empty > 5 {
panic!("No login on pty");
}
}
_ => panic!("No login on pty"),
}
}
guest.ssh_command("sudo shutdown -h now").unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(20));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
// Check that the cloud-hypervisor binary actually terminated
assert_eq!(output.status.success(), true);
});
handle_child_output(r, &output);
}
#[test]
fn test_virtio_console() {
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 kernel_path = direct_kernel_boot_path();
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();
let text = String::from("On a branch floating down river a cricket, singing.");
let cmd = format!("echo {} | sudo tee /dev/hvc0", text);
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
#[cfg(feature = "acpi")]
assert!(guest
.does_device_vendor_pair_match("0x1043", "0x1af4")
.unwrap_or_default());
guest.ssh_command(&cmd).unwrap();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&output.stdout).contains(&text));
});
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_console_file() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let console_path = guest.tmp_dir.as_path().join("/tmp/console-output");
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.args(&[
"--console",
format!("file={}", console_path.to_str().unwrap()).as_str(),
])
.capture_output()
.spawn()
.unwrap();
guest.wait_vm_boot(None).unwrap();
guest.ssh_command("sudo shutdown -h now").unwrap();
let _ = child.wait_timeout(std::time::Duration::from_secs(20));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let r = std::panic::catch_unwind(|| {
// Check that the cloud-hypervisor binary actually terminated
assert_eq!(output.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).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert!(buf.contains("cloud login:"));
});
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
// 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() {
setup_vfio_network_interfaces();
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new_from_ip_range(&mut focal, "172.18", 0);
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let kernel_path = direct_kernel_boot_path();
let mut vfio_path = workload_path.clone();
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 mut vfio_disk_path = workload_path;
vfio_disk_path.push("vfio.img");
// Create the vfio disk image
let output = Command::new("mkfs.ext4")
.arg("-d")
.arg(vfio_path.to_str().unwrap())
.arg(vfio_disk_path.to_str().unwrap())
.arg("2g")
.output()
.unwrap();
if !output.status.success() {
eprintln!("{}", String::from_utf8_lossy(&output.stderr));
panic!("mkfs.ext4 command generated an error");
}
let vfio_tap0 = "vfio-tap0";
let vfio_tap1 = "vfio-tap1";
let vfio_tap2 = "vfio-tap2";
let vfio_tap3 = "vfio-tap3";
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()])
.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={}", vfio_disk_path.to_str().unwrap()).as_str(),
])
.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(),
])
.capture_output()
.spawn()
.unwrap();
thread::sleep(std::time::Duration::new(30, 0));
let r = std::panic::catch_unwind(|| {
guest.ssh_command_l1("sudo systemctl start vfio").unwrap();
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.
assert_eq!(
guest
.ssh_command_l2_1("grep -c VFIOTAG /proc/cmdline")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Let's also verify from the second virtio-net device passed to
// the L2 VM.
assert_eq!(
guest
.ssh_command_l2_2("grep -c VFIOTAG /proc/cmdline")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check the amount of PCI devices appearing in L2 VM.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
7,
);
// Hotplug an extra virtio-net device through L2 VM.
guest.ssh_command_l1(
"echo 0000:00:08.0 | sudo tee /sys/bus/pci/devices/0000:00:08.0/driver/unbind",
).unwrap();
guest
.ssh_command_l1(
"echo 1af4 1041 | sudo tee /sys/bus/pci/drivers/vfio-pci/new_id",
)
.unwrap();
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/0000:00:08.0,id=vfio123",
)
.unwrap();
assert!(
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.
assert_eq!(
guest
.ssh_command_l2_3("grep -c VFIOTAG /proc/cmdline")
.unwrap()
.trim()
.parse::<u32>()
.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.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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",
)
.unwrap();
thread::sleep(std::time::Duration::new(10, 0));
// Check the amount of PCI devices appearing in L2 VM is back down
// to 7 devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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.
assert!(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'",
).unwrap();
guest
.ssh_command_l1(
"sudo /mnt/ch-remote \
--api-socket=/tmp/ch_api.sock \
resize --memory=1073741824",
)
.unwrap();
assert!(guest.get_total_memory_l2().unwrap_or_default() > 960_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
cleanup_vfio_network_interfaces();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vmlinux_boot_noacpi() {
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 kernel_path = direct_kernel_boot_path();
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", kernel_path.to_str().unwrap()])
.args(&[
"--cmdline",
format!("{} acpi=off", DIRECT_KERNEL_BOOT_CMDLINE).as_str(),
])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 1);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_reboot() {
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 cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output();
let mut child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(Some(120)).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1);
let fd_count_1 = get_fd_count(child.id());
assert_eq!(reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(Some(120)).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
let fd_count_2 = get_fd_count(child.id());
assert_eq!(reboot_count, 1);
assert_eq!(fd_count_1, fd_count_2);
guest.ssh_command("sudo shutdown -h now").unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(40));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
// Check that the cloud-hypervisor binary actually terminated
assert_eq!(output.status.success(), true);
});
handle_child_output(r, &output);
});
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_bzimage_reboot() {
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(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1);
let fd_count_1 = get_fd_count(child.id());
assert_eq!(reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
let fd_count_2 = get_fd_count(child.id());
assert_eq!(reboot_count, 1);
assert_eq!(fd_count_1, fd_count_2);
guest.ssh_command("sudo shutdown -h now").unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(20));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
// Check that the cloud-hypervisor binary actually terminated
assert_eq!(output.status.success(), true);
});
handle_child_output(r, &output);
}
#[test]
fn test_virtio_vsock() {
_test_virtio_vsock(false)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_vsock_hotplug() {
_test_virtio_vsock(true);
}
#[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() {
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])
.capture_output()
.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));
let r = std::panic::catch_unwind(|| {
// Check that the VM booted as expected
assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
// 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() {
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])
.capture_output()
.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));
let r = std::panic::catch_unwind(|| {
// Check that the VM booted as expected
assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_entropy().unwrap_or_default() >= 900);
// We now pause the VM
assert!(remote_command(&api_socket, "pause", None));
// Check pausing again fails
assert!(!remote_command(&api_socket, "pause", None));
thread::sleep(std::time::Duration::new(2, 0));
// SSH into the VM should fail
assert!(ssh_command_ip(
"grep -c processor /proc/cpuinfo",
&guest.network.guest_ip,
2,
5
)
.is_err());
// Resume the VM
assert!(remote_command(&api_socket, "resume", None));
// Check resuming again fails
assert!(!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
assert_eq!(guest.get_cpu_count().unwrap_or_default() as u8, cpu_count);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
// 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() {
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 kernel_path = direct_kernel_boot_path();
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])
.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()])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Verify the virtio-iommu device is present.
assert!(guest
.does_device_vendor_pair_match("0x1057", "0x1af4")
.unwrap_or_default());
// Verify the first disk is located under IOMMU group 0.
assert_eq!(
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.
assert_eq!(
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.
assert_eq!(
guest
.ssh_command("ls /sys/kernel/iommu_groups/2/devices")
.unwrap()
.trim(),
"0000:00:04.0"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
// 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.
fn test_pci_bar_reprogramming() {
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", direct_kernel_boot_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",
])
.capture_output()
.spawn()
.unwrap();
let r =
std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// 2 network interfaces + default localhost ==> 3 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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",
).unwrap();
// Remove the PCI device
guest
.ssh_command("echo 1 | sudo tee /sys/bus/pci/devices/0000:00:05.0/remove")
.unwrap();
// Only 1 network interface left + default localhost ==> 2 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
// Remove the PCI device
guest
.ssh_command("echo 1 | sudo tee /sys/bus/pci/rescan")
.unwrap();
// Back to 2 network interface + default localhost ==> 3 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.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",
).unwrap();
// Let's compare the BAR addresses for our virtio-net device.
// They should be different as we expect the BAR reprogramming
// to have happened.
assert_ne!(init_bar_addr, new_bar_addr);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_memory_mergeable_off() {
test_memory_mergeable(false)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_cpu_hotplug() {
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 kernel_path = direct_kernel_boot_path();
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])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(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")
.unwrap();
guest
.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")
.unwrap();
thread::sleep(std::time::Duration::new(10, 0));
assert_eq!(
guest.get_cpu_count().unwrap_or_default(),
u32::from(desired_vcpus)
);
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1);
assert_eq!(reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
assert_eq!(
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));
assert_eq!(
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")
.unwrap();
guest
.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")
.unwrap();
thread::sleep(std::time::Duration::new(10, 0));
assert_eq!(
guest.get_cpu_count().unwrap_or_default(),
u32::from(desired_vcpus)
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_memory_hotplug() {
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 kernel_path = direct_kernel_boot_path();
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(&["--balloon", "size=0"])
.args(&["--api-socket", &api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
// Use balloon to remove RAM from the VM
let desired_balloon = 512 << 20;
resize_command(&api_socket, None, None, Some(desired_balloon));
thread::sleep(std::time::Duration::new(10, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_total_memory().unwrap_or_default() < 960_000);
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1);
assert_eq!(reboot_count, 0);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
assert!(guest.get_total_memory().unwrap_or_default() < 960_000);
// Use balloon add RAM to the VM
let desired_balloon = 0;
resize_command(&api_socket, None, None, Some(desired_balloon));
thread::sleep(std::time::Duration::new(10, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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));
assert!(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();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 2);
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
assert!(guest.get_total_memory().unwrap_or_default() < 1_920_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_virtio_mem() {
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 kernel_path = direct_kernel_boot_path();
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])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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));
assert!(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));
assert!(guest.get_total_memory().unwrap_or_default() > 1_920_000);
// Remove RAM from the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None);
thread::sleep(std::time::Duration::new(10, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
assert!(guest.get_total_memory().unwrap_or_default() < 1_920_000);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Check the amount of memory after reboot is 1GiB
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
assert!(guest.get_total_memory().unwrap_or_default() < 1_920_000);
// Check we can still resize to 512MiB
let desired_ram = 512 << 20;
resize_command(&api_socket, None, Some(desired_ram), None);
thread::sleep(std::time::Duration::new(10, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
assert!(guest.get_total_memory().unwrap_or_default() < 960_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
// Test both vCPU and memory resizing together
fn test_resize() {
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 kernel_path = direct_kernel_boot_path();
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])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 2);
assert!(guest.get_total_memory().unwrap_or_default() > 480_000);
guest
.ssh_command(
"echo online | sudo tee /sys/devices/system/memory/auto_online_blocks",
)
.unwrap();
// 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")
.unwrap();
guest
.ssh_command("echo 1 | sudo tee /sys/bus/cpu/devices/cpu3/online")
.unwrap();
thread::sleep(std::time::Duration::new(10, 0));
assert_eq!(
guest.get_cpu_count().unwrap_or_default(),
u32::from(desired_vcpus)
);
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_memory_overhead() {
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 kernel_path = direct_kernel_boot_path();
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()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.capture_output()
.spawn()
.unwrap();
thread::sleep(std::time::Duration::new(20, 0));
let r = std::panic::catch_unwind(|| {
let overhead = get_vmm_overhead(child.id(), guest_memory_size_kb);
eprintln!(
"Guest memory overhead: {} vs {}",
overhead, MAXIMUM_VMM_OVERHEAD_KB
);
assert!(overhead <= MAXIMUM_VMM_OVERHEAD_KB);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_disk_hotplug() {
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 kernel_path = direct_kernel_boot_path();
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()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check /dev/vdc is not there
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
// Now let's add the extra disk.
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()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"test0\",\"bdf\":\"0000:00:06.0\"}"));
thread::sleep(std::time::Duration::new(10, 0));
// Check that /dev/vdc exists and the block size is 16M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// And check the block device can be read.
assert!(guest
.ssh_command("dd if=/dev/vdc of=/dev/null bs=1M iflag=direct count=16")
.is_ok());
// Let's remove it the extra disk.
assert!(remote_command(&api_socket, "remove-device", Some("test0")));
thread::sleep(std::time::Duration::new(5, 0));
// And check /dev/vdc is not there
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
// And add it back to validate unplug did work correctly.
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()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"test0\",\"bdf\":\"0000:00:06.0\"}"));
thread::sleep(std::time::Duration::new(10, 0));
// Check that /dev/vdc exists and the block size is 16M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// And check the block device can be read.
assert!(guest
.ssh_command("dd if=/dev/vdc of=/dev/null bs=1M iflag=direct count=16")
.is_ok());
// Reboot the VM.
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Check still there after reboot
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
assert!(remote_command(&api_socket, "remove-device", Some("test0")));
thread::sleep(std::time::Duration::new(20, 0));
// Check device has gone away
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 2);
// Check device still absent
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_pmem_hotplug() {
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 kernel_path = direct_kernel_boot_path();
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()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check /dev/pmem0 is not there
assert_eq!(
guest
.ssh_command("lsblk | grep -c pmem0")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
let pmem_temp_file = TempFile::new().unwrap();
pmem_temp_file.as_file().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.as_path().to_str().unwrap()
)),
);
assert!(cmd_success);
assert!(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
assert_eq!(
guest
.ssh_command("lsblk | grep pmem0 | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Check still there after reboot
assert_eq!(
guest
.ssh_command("lsblk | grep pmem0 | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
assert!(remote_command(&api_socket, "remove-device", Some("test0")));
thread::sleep(std::time::Duration::new(20, 0));
// Check device has gone away
assert_eq!(
guest
.ssh_command("lsblk | grep pmem0 | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 2);
// Check still absent after reboot
assert_eq!(
guest
.ssh_command("lsblk | grep pmem0 | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_net_hotplug() {
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 kernel_path = direct_kernel_boot_path();
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()
.capture_output()
.spawn()
.unwrap();
thread::sleep(std::time::Duration::new(20, 0));
let r = std::panic::catch_unwind(|| {
// Add network
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-net",
Some(guest.default_net_string().as_str()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"_net2\",\"bdf\":\"0000:00:05.0\"}"));
thread::sleep(std::time::Duration::new(5, 0));
// 1 network interfaces + default localhost ==> 2 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
// Remove network
assert!(remote_command(&api_socket, "remove-device", Some("_net2")));
thread::sleep(std::time::Duration::new(5, 0));
// Add network again
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-net",
Some(guest.default_net_string().as_str()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"_net3\",\"bdf\":\"0000:00:05.0\"}"));
thread::sleep(std::time::Duration::new(5, 0));
// 1 network interfaces + default localhost ==> 2 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
let reboot_count = guest
.ssh_command("sudo journalctl | grep -c -- \"-- Reboot --\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(reboot_count, 1);
// Check still there after reboot
// 1 network interfaces + default localhost ==> 2 interfaces
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_initramfs() {
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 kernels = vec![direct_kernel_boot_path()];
#[cfg(target_arch = "x86_64")]
{
let mut pvh_kernel_path = workload_path.clone();
pvh_kernel_path.push("vmlinux.pvh");
kernels.push(pvh_kernel_path);
}
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);
kernels.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();
let output = child.wait_with_output().unwrap();
let r = std::panic::catch_unwind(|| {
let s = String::from_utf8_lossy(&output.stdout);
assert_ne!(s.lines().position(|line| line == test_string), None);
});
handle_child_output(r, &output);
});
}
// 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]
#[cfg(target_arch = "x86_64")]
fn test_snapshot_restore() {
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 kernel_path = direct_kernel_boot_path();
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 = 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();
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);
// Create the snapshot directory
let snapshot_dir = temp_snapshot_dir_path(&guest.tmp_dir);
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 4);
// Check the guest RAM
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
// Check block devices are readable
assert!(guest
.ssh_command("dd if=/dev/vda of=/dev/null bs=1M iflag=direct count=1024")
.is_ok());
assert!(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
assert!(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
assert!(guest.ssh_command(&console_cmd).is_ok());
// We 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.
// Unplug the virtio-net device
assert!(remote_command(&api_socket, "remove-device", Some(net_id),));
thread::sleep(std::time::Duration::new(10, 0));
// Plug the virtio-net device again
assert!(remote_command(
&api_socket,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
// Pause the VM
assert!(remote_command(&api_socket, "pause", None));
// Take a snapshot from the VM
assert!(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();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&output.stdout).contains(&console_text));
});
handle_child_output(r, &output);
// 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));
let r = std::panic::catch_unwind(|| {
// Resume the VM
assert!(remote_command(&api_socket, "resume", None));
// Perform same checks to validate VM has been properly restored
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 4);
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
assert!(guest
.ssh_command("dd if=/dev/vda of=/dev/null bs=1M iflag=direct count=1024")
.is_ok());
assert!(guest
.ssh_command("dd if=/dev/vdb of=/dev/null bs=1M iflag=direct count=8")
.is_ok());
assert!(guest
.ssh_command("head -c 1000 /dev/hwrng > /dev/null")
.is_ok());
guest.check_vsock(socket.as_str());
assert!(guest.ssh_command(&console_cmd).is_ok());
// Shutdown the target VM and check console output
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&output.stdout).contains(&console_text));
});
handle_child_output(r, &output);
}
#[test]
fn test_counters() {
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 cmd = GuestCommand::new(&guest);
cmd.args(&["--cpus", "boot=1"])
.args(&["--memory", "size=512M"])
.args(&["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(&["--net", guest.default_net_string().as_str()])
.args(&["--api-socket", &api_socket])
.capture_output();
let mut child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
let orig_counters = get_counters(&api_socket);
assert!(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
assert!(new_counters > orig_counters);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_watchdog() {
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 kernel_path = direct_kernel_boot_path();
let mut cmd = GuestCommand::new(&guest);
cmd.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()])
.args(&["--watchdog"])
.args(&["--api-socket", &api_socket])
.capture_output();
let mut child = cmd.spawn().unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check for PCI device
assert!(guest
.does_device_vendor_pair_match("0x1063", "0x1af4")
.unwrap_or_default());
// Enable systemd watchdog
guest
.ssh_command(
"echo RuntimeWatchdogSec=15s | sudo tee -a /etc/systemd/system.conf",
)
.unwrap();
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
// Check that systemd has activated the watchdog
assert_eq!(
guest
.ssh_command("sudo journalctl | grep -c -- \"Watchdog started\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
// Ensure that the current boot journal is written so reboot counts are valid
guest.ssh_command("sudo journalctl --sync").unwrap();
let boot_count = guest
.ssh_command("sudo journalctl --list-boots | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(boot_count, 2);
// Allow some normal time to elapse to check we don't get spurious reboots
thread::sleep(std::time::Duration::new(40, 0));
// Check no reboot
let boot_count = guest
.ssh_command("sudo journalctl --list-boots | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(boot_count, 2);
// Ensure that the current boot journal is written so reboot counts are valid
guest.ssh_command("sudo journalctl --sync").unwrap();
// Trigger a panic (sync first). We need to do this inside a screen with a delay so the SSH command returns.
guest.ssh_command("screen -dmS reboot sh -c \"sleep 5; echo s | tee /proc/sysrq-trigger; echo c | sudo tee /proc/sysrq-trigger\"").unwrap();
// Allow some time for the watchdog to trigger (max 30s) and reboot to happen
guest.wait_vm_boot(Some(50)).unwrap();
// Check that watchdog triggered reboot
let boot_count = guest
.ssh_command("sudo journalctl --list-boots | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(boot_count, 3);
#[cfg(target_arch = "x86_64")]
{
// Now pause the VM and remain offline for 30s
assert!(remote_command(&api_socket, "pause", None));
thread::sleep(std::time::Duration::new(30, 0));
assert!(remote_command(&api_socket, "resume", None));
// Check no reboot
let boot_count = guest
.ssh_command("sudo journalctl --list-boots | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default();
assert_eq!(boot_count, 3);
}
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_tap_from_fd() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let kernel_path = direct_kernel_boot_path();
// Create a TAP interface with multi-queue enabled
let num_queue_pairs: usize = 2;
use std::str::FromStr;
let taps = net_util::open_tap(
Some("chtap0"),
Some(std::net::Ipv4Addr::from_str(&guest.network.host_ip).unwrap()),
None,
&mut None,
num_queue_pairs,
Some(libc::O_RDWR | libc::O_NONBLOCK),
)
.unwrap();
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", &format!("boot={}", num_queue_pairs)])
.args(&["--memory", "size=512M"])
.args(&["--kernel", kernel_path.to_str().unwrap()])
.args(&["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(&[
"--net",
&format!(
"fd={}:{},mac={},num_queues={}",
taps[0].as_raw_fd(),
taps[1].as_raw_fd(),
guest.network.guest_mac,
num_queue_pairs * 2
),
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
// By design, a guest VM won't be able to connect to the host
// machine when using a macvtap network interface (while it can
// communicate externally). As a workaround, this integration
// test creates two macvtap interfaces in 'bridge' mode on the
// same physical net interface, one for the guest and one for
// the host. With additional setup on the IP address and the
// routing table, it enables the communications between the
// guest VM and the host machine.
// Details: https://wiki.libvirt.org/page/TroubleshootMacvtapHostFail
fn test_macvtap() {
let mut focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let kernel_path = direct_kernel_boot_path();
let phy_net = "eth0";
// Create a macvtap interface for the guest VM to use
let guest_macvtap_name = "guestmacvtap0";
std::process::Command::new("bash")
.args(&[
"-c",
&format!(
"sudo ip link add link {} name {} type macvtap mod bridge",
phy_net, guest_macvtap_name
),
])
.status()
.expect("Expected 'ip link add' to work");
std::process::Command::new("bash")
.args(&[
"-c",
&format!(
"sudo ip link set {} address {} up",
guest_macvtap_name, guest.network.guest_mac
),
])
.status()
.expect("Expected 'ip link set' to work");
std::process::Command::new("bash")
.args(&["-c", &format!("sudo ip link show {}", guest_macvtap_name)])
.status()
.expect("Expected 'ip link show' to work");
let tap_index =
fs::read_to_string(&format!("/sys/class/net/{}/ifindex", guest_macvtap_name))
.unwrap();
let tap_device = format!("/dev/tap{}", tap_index.trim());
std::process::Command::new("bash")
.args(&["-c", &format!("sudo chown $UID.$UID {}", tap_device)])
.status()
.expect("Expected 'chown' to work");
let cstr_tap_device = std::ffi::CString::new(tap_device).unwrap();
let tap_fd = unsafe { libc::open(cstr_tap_device.as_ptr(), libc::O_RDWR) };
assert!(tap_fd > 0);
// Create a macvtap on the same physical net interface for
// the host machine to use
let host_macvtap_name = "hostmacvtap0";
std::process::Command::new("bash")
.args(&[
"-c",
&format!(
"sudo ip link add link {} name {} type macvtap mod bridge",
phy_net, host_macvtap_name
),
])
.status()
.expect("Expected 'ip link add' to work");
// Use default mask "255.255.255.0"
std::process::Command::new("bash")
.args(&[
"-c",
&format!(
"sudo ip address add {}/24 dev {}",
guest.network.host_ip, host_macvtap_name
),
])
.status()
.expect("Expected 'ip address add' to work");
std::process::Command::new("bash")
.args(&[
"-c",
&format!("sudo ip link set dev {} up", host_macvtap_name),
])
.status()
.expect("Expected 'ip link set dev up' to work");
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",
&format!("fd={},mac={}", tap_fd, guest.network.guest_mac),
])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert_eq!(
guest
.ssh_command("ip -o link | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
2
);
});
let _ = child.kill();
std::process::Command::new("bash")
.args(&["-c", &format!("sudo ip link del {}", guest_macvtap_name)])
.status()
.expect("Expected 'ip link del' to work");
std::process::Command::new("bash")
.args(&["-c", &format!("sudo ip link del {}", host_macvtap_name)])
.status()
.expect("Expected 'ip link del' to work");
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
mod sequential {
use crate::tests::*;
#[test]
fn test_memory_mergeable_on() {
test_memory_mergeable(true)
}
}
#[cfg(target_arch = "x86_64")]
mod windows {
use crate::tests::*;
fn windows_auth() -> PasswordAuth {
PasswordAuth {
username: String::from("administrator"),
password: String::from("Admin123"),
}
}
fn get_cpu_count_windows(auth: &PasswordAuth) -> u8 {
return ssh_command_ip_with_auth(
"powershell -Command \"(Get-CimInstance win32_computersystem).NumberOfLogicalProcessors\"",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(0);
}
fn get_ram_size_windows(auth: &PasswordAuth) -> usize {
return ssh_command_ip_with_auth(
"powershell -Command \"(Get-CimInstance win32_computersystem).TotalPhysicalMemory\"",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap()
.trim()
.parse::<usize>()
.unwrap_or(0);
}
fn get_vcpu_threads_count(pid: u32) -> u8 {
// ps -T -p 12345 | grep vcpu | wc -l
let out = Command::new("ps")
.args(&["-T", "-p", format!("{}", pid).as_str()])
.output()
.expect("ps command failed")
.stdout;
return String::from_utf8_lossy(&out).matches("vcpu").count() as u8;
}
fn get_netdev_count_windows(auth: &PasswordAuth) -> u8 {
return ssh_command_ip_with_auth(
"powershell -Command \"netsh int ipv4 show interfaces | Select-String ethernet | Measure-Object -Line | Format-Table -HideTableHeaders\"",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap()
.trim()
.parse::<u8>()
.unwrap_or(0);
}
fn get_netdev_ctrl_threads_count_windows(pid: u32) -> u8 {
// ps -T -p 12345 | grep "_net[0-9]*_ctrl" | wc -l
let out = Command::new("ps")
.args(&["-T", "-p", format!("{}", pid).as_str()])
.output()
.expect("ps command failed")
.stdout;
let mut n = 0;
String::from_utf8_lossy(&out)
.split_whitespace()
.for_each(|s| n += (s.starts_with("_net") && s.ends_with("_ctrl")) as u8); // _net1_ctrl
n
}
#[test]
fn test_windows_guest() {
let mut windows = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(&mut windows);
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ovmf_path = workload_path.clone();
ovmf_path.push(OVMF_NAME);
let mut osdisk_path = workload_path;
osdisk_path.push(WINDOWS_IMAGE_NAME.to_string());
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=2,kvm_hyperv=on"])
.args(&["--memory", "size=4G"])
.args(&["--kernel", ovmf_path.to_str().unwrap()])
.default_disks()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.args(&["--net", "tap="])
.capture_output()
.spawn()
.unwrap();
let fd = child.stdout.as_ref().unwrap().as_raw_fd();
let pipesize = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
let fd = child.stderr.as_ref().unwrap().as_raw_fd();
let pipesize1 = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
assert!(pipesize >= PIPE_SIZE && pipesize1 >= PIPE_SIZE);
thread::sleep(std::time::Duration::new(60, 0));
let auth = windows_auth();
let r = std::panic::catch_unwind(|| {
ssh_command_ip_with_auth(
"shutdown /s",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_windows_guest_snapshot_restore() {
let mut windows = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(&mut windows);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ovmf_path = workload_path.clone();
ovmf_path.push(OVMF_NAME);
let mut osdisk_path = workload_path;
osdisk_path.push(WINDOWS_IMAGE_NAME.to_string());
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(&["--api-socket", &api_socket])
.args(&["--cpus", "boot=2,kvm_hyperv=on"])
.args(&["--memory", "size=4G"])
.args(&["--kernel", ovmf_path.to_str().unwrap()])
.default_disks()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.args(&["--net", "tap="])
.capture_output()
.spawn()
.unwrap();
let fd = child.stdout.as_ref().unwrap().as_raw_fd();
let pipesize = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
let fd = child.stderr.as_ref().unwrap().as_raw_fd();
let pipesize1 = unsafe { libc::fcntl(fd, libc::F_SETPIPE_SZ, PIPE_SIZE) };
assert!(pipesize >= PIPE_SIZE && pipesize1 >= PIPE_SIZE);
// Wait to make sure Windows boots up
thread::sleep(std::time::Duration::new(60, 0));
let snapshot_dir = temp_snapshot_dir_path(&tmp_dir);
// Pause the VM
assert!(remote_command(&api_socket, "pause", None));
// Take a snapshot from the VM
assert!(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(30, 0));
let _ = child.kill();
child.wait().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(20, 0));
let r = std::panic::catch_unwind(|| {
// Resume the VM
assert!(remote_command(&api_socket, "resume", None));
let auth = windows_auth();
ssh_command_ip_with_auth(
"shutdown /s",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_windows_guest_cpu_hotplug() {
let mut windows = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(&mut windows);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ovmf_path = workload_path.clone();
ovmf_path.push(OVMF_NAME);
let mut osdisk_path = workload_path;
osdisk_path.push(WINDOWS_IMAGE_NAME.to_string());
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(&["--api-socket", &api_socket])
.args(&["--cpus", "boot=2,max=8,kvm_hyperv=on"])
.args(&["--memory", "size=4G"])
.args(&["--kernel", ovmf_path.to_str().unwrap()])
.default_disks()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.args(&["--net", "tap="])
.capture_output()
.spawn()
.unwrap();
// Wait to make sure Windows boots up
thread::sleep(std::time::Duration::new(60, 0));
let r = std::panic::catch_unwind(|| {
let auth = windows_auth();
let vcpu_num = 2;
// Check the initial number of CPUs the guest sees
assert_eq!(get_cpu_count_windows(&auth), vcpu_num);
// Check the initial number of vcpu threads in the CH process
assert_eq!(get_vcpu_threads_count(child.id()), vcpu_num);
let vcpu_num = 6;
// Hotplug some CPUs
resize_command(&api_socket, Some(vcpu_num), None, None);
// Wait to make sure CPUs are added
thread::sleep(std::time::Duration::new(10, 0));
// Check the guest sees the correct number
assert_eq!(get_cpu_count_windows(&auth), vcpu_num);
// Check the CH process has the correct number of vcpu threads
assert_eq!(get_vcpu_threads_count(child.id()), vcpu_num);
let vcpu_num = 4;
// Remove some CPUs. Note that Windows doesn't support hot-remove.
resize_command(&api_socket, Some(vcpu_num), None, None);
// Wait to make sure CPUs are removed
thread::sleep(std::time::Duration::new(10, 0));
// Reboot to let Windows catch up
ssh_command_ip_with_auth(
"shutdown /r /t 0",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
// Wait to make sure Windows completely rebooted
thread::sleep(std::time::Duration::new(60, 0));
// Check the guest sees the correct number
assert_eq!(get_cpu_count_windows(&auth), vcpu_num);
// Check the CH process has the correct number of vcpu threads
assert_eq!(get_vcpu_threads_count(child.id()), vcpu_num);
ssh_command_ip_with_auth(
"shutdown /s",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_windows_guest_ram_hotplug() {
let mut windows = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(&mut windows);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ovmf_path = workload_path.clone();
ovmf_path.push(OVMF_NAME);
let mut osdisk_path = workload_path;
osdisk_path.push(WINDOWS_IMAGE_NAME.to_string());
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(&["--api-socket", &api_socket])
.args(&["--cpus", "boot=2,kvm_hyperv=on"])
.args(&["--memory", "size=2G,hotplug_size=5G"])
.args(&["--kernel", ovmf_path.to_str().unwrap()])
.default_disks()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.args(&["--net", "tap="])
.capture_output()
.spawn()
.unwrap();
// Wait to make sure Windows boots up
thread::sleep(std::time::Duration::new(60, 0));
let r = std::panic::catch_unwind(|| {
let auth = windows_auth();
let ram_size = 2 * 1024 * 1024 * 1024;
// Check the initial number of RAM the guest sees
let current_ram_size = get_ram_size_windows(&auth);
// This size seems to be reserved by the system and thus the
// reported amount differs by this constant value.
let reserved_ram_size = ram_size - current_ram_size;
// Verify that there's not more than 4mb constant diff wasted
// by the reserved ram.
assert!(reserved_ram_size < 4 * 1024 * 1024);
let ram_size = 4 * 1024 * 1024 * 1024;
// Hotplug some RAM
resize_command(&api_socket, None, Some(ram_size), None);
// Wait to make sure RAM has been added
thread::sleep(std::time::Duration::new(10, 0));
// Check the guest sees the correct number
assert_eq!(get_ram_size_windows(&auth), ram_size - reserved_ram_size);
let ram_size = 3 * 1024 * 1024 * 1024;
// Unplug some RAM. Note that hot-remove most likely won't work.
resize_command(&api_socket, None, Some(ram_size), None);
// Wait to make sure RAM has been added
thread::sleep(std::time::Duration::new(10, 0));
// Reboot to let Windows catch up
ssh_command_ip_with_auth(
"shutdown /r /t 0",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
// Wait to make sure guest completely rebooted
thread::sleep(std::time::Duration::new(60, 0));
// Check the guest sees the correct number
assert_eq!(get_ram_size_windows(&auth), ram_size - reserved_ram_size);
ssh_command_ip_with_auth(
"shutdown /s",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_windows_guest_netdev_hotplug() {
let mut windows = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(&mut windows);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ovmf_path = workload_path.clone();
ovmf_path.push(OVMF_NAME);
let mut osdisk_path = workload_path;
osdisk_path.push(WINDOWS_IMAGE_NAME.to_string());
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(&["--api-socket", &api_socket])
.args(&["--cpus", "boot=2,kvm_hyperv=on"])
.args(&["--memory", "size=2G,hotplug_size=5G"])
.args(&["--kernel", ovmf_path.to_str().unwrap()])
.default_disks()
.args(&["--serial", "tty"])
.args(&["--console", "off"])
.args(&["--net", "tap="])
.capture_output()
.spawn()
.unwrap();
// Wait to make sure Windows boots up
thread::sleep(std::time::Duration::new(60, 0));
let r = std::panic::catch_unwind(|| {
let auth = windows_auth();
// Initially present network device
let netdev_num = 1;
assert_eq!(get_netdev_count_windows(&auth), netdev_num);
assert_eq!(
get_netdev_ctrl_threads_count_windows(child.id()),
netdev_num
);
// Hotplug network device
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-net",
Some(guest.default_net_string().as_str()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output).contains("\"id\":\"_net2\""));
thread::sleep(std::time::Duration::new(5, 0));
// Verify the device is on the system
let netdev_num = 2;
assert_eq!(get_netdev_count_windows(&auth), netdev_num);
assert_eq!(
get_netdev_ctrl_threads_count_windows(child.id()),
netdev_num
);
// Remove network device
let cmd_success = remote_command(&api_socket, "remove-device", Some("_net2"));
assert!(cmd_success);
thread::sleep(std::time::Duration::new(5, 0));
// Verify the device has been removed
let netdev_num = 1;
assert_eq!(get_netdev_count_windows(&auth), netdev_num);
assert_eq!(
get_netdev_ctrl_threads_count_windows(child.id()),
netdev_num
);
ssh_command_ip_with_auth(
"shutdown /s",
&auth,
"192.168.249.2",
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
#[cfg(target_arch = "x86_64")]
mod sgx {
use crate::tests::*;
#[test]
fn test_sgx() {
let mut focal = UbuntuDiskConfig::new(FOCAL_SGX_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_w_sgx");
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(&["--sgx-epc", "size=64M"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check if SGX is correctly detected in the guest.
assert!(guest.check_sgx_support().unwrap());
// Validate the SGX EPC section is 64MiB.
assert_eq!(
guest
.ssh_command("cpuid -l 0x12 -s 2 | grep 'section size' | cut -d '=' -f 2")
.unwrap()
.trim(),
"0x0000000004000000"
);
// Run a test relying on SGX enclaves and check if it runs
// successfully.
assert!(guest
.ssh_command("cd /linux-sgx/SampleCode/LocalAttestation/bin/ && sudo ./app")
.unwrap()
.trim()
.contains(
"succeed to load enclaves.\nsucceed to \
establish secure channel.\nSucceed to exchange \
secure message...\nSucceed to close Session..."
));
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
#[cfg(target_arch = "x86_64")]
mod vfio {
use crate::tests::*;
#[test]
fn test_nvidia_card() {
let mut focal = UbuntuDiskConfig::new(FOCAL_NVIDIA_IMAGE_NAME.to_string());
let guest = Guest::new(&mut focal);
let mut child = GuestCommand::new(&guest)
.args(&["--cpus", "boot=4"])
.args(&["--memory", "size=4G"])
.args(&["--kernel", guest.fw_path.as_str()])
.args(&["--device", "path=/sys/bus/pci/devices/0000:31:00.0/"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Run CUDA sample to validate it can find the device
let device_query_result = guest
.ssh_command(
"sudo /root/NVIDIA_CUDA-11.2_Samples/bin/x86_64/linux/release/deviceQuery",
)
.unwrap();
assert!(device_query_result.contains("Detected 1 CUDA Capable device"));
assert!(device_query_result.contains("Device 0: \"Tesla T4\""));
assert!(device_query_result.contains("Result = PASS"));
// Run NVIDIA DCGM Diagnostics to validate the device is functional
assert_eq!(
guest
.ssh_command("sudo nv-hostengine && echo ok")
.unwrap()
.trim(),
"ok"
);
assert!(guest
.ssh_command("sudo dcgmi discovery -l")
.unwrap()
.contains("Name: Tesla T4"));
assert_eq!(
guest
.ssh_command("sudo dcgmi diag -r 'diagnostic' | grep Pass | wc -l")
.unwrap()
.trim(),
"10"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
}
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