// Copyright © 2020 Intel Corporation
//
// SPDX-License-Identifier: Apache-2.0
//
// When enabling the `mshv` feature, we skip quite some tests and
// hence have known dead-code. This annotation silences dead-code
// related warnings for our quality workflow to pass.
#![allow(dead_code)]
extern crate test_infra;
use net_util::MacAddr;
use std::collections::HashMap;
use std::fs;
use std::io;
use std::io::BufRead;
use std::io::Read;
use std::io::Seek;
use std::io::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;
use std::sync::mpsc::Receiver;
use std::sync::Mutex;
use std::thread;
use test_infra::*;
use vmm_sys_util::{tempdir::TempDir, tempfile::TempFile};
use wait_timeout::ChildExt;
#[cfg(target_arch = "x86_64")]
mod x86_64 {
pub const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-amd64.raw";
pub const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-custom-20210609-0.raw";
pub const FOCAL_SGX_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-sgx.raw";
pub const HIRSUTE_NVIDIA_IMAGE_NAME: &str = "hirsute-server-cloudimg-amd64-nvidia.raw";
pub const FOCAL_IMAGE_NAME_QCOW2: &str = "focal-server-cloudimg-amd64-custom-20210609-0.qcow2";
pub const FOCAL_IMAGE_NAME_VHD: &str = "focal-server-cloudimg-amd64-custom-20210609-0.vhd";
pub const FOCAL_IMAGE_NAME_VHDX: &str = "focal-server-cloudimg-amd64-custom-20210609-0.vhdx";
pub const JAMMY_IMAGE_NAME: &str = "jammy-server-cloudimg-amd64-custom-20220329-0.raw";
pub const WINDOWS_IMAGE_NAME: &str = "windows-server-2019.raw";
pub const OVMF_NAME: &str = "CLOUDHV.fd";
pub const GREP_SERIAL_IRQ_CMD: &str = "grep -c 'IO-APIC.*ttyS0' /proc/interrupts || true";
}
#[cfg(target_arch = "x86_64")]
use x86_64::*;
#[cfg(target_arch = "aarch64")]
mod aarch64 {
pub const BIONIC_IMAGE_NAME: &str = "bionic-server-cloudimg-arm64.raw";
pub const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-arm64-custom-20210929-0.raw";
pub const FOCAL_IMAGE_UPDATE_KERNEL_NAME: &str =
"focal-server-cloudimg-arm64-custom-20210929-0-update-kernel.raw";
pub const FOCAL_IMAGE_NAME_QCOW2: &str = "focal-server-cloudimg-arm64-custom-20210929-0.qcow2";
pub const FOCAL_IMAGE_NAME_VHD: &str = "focal-server-cloudimg-arm64-custom-20210929-0.vhd";
pub const FOCAL_IMAGE_NAME_VHDX: &str = "focal-server-cloudimg-arm64-custom-20210929-0.vhdx";
pub const JAMMY_IMAGE_NAME: &str = "jammy-server-cloudimg-arm64-custom-20220329-0.raw";
pub const WINDOWS_IMAGE_NAME: &str = "windows-11-iot-enterprise-aarch64.raw";
pub const OVMF_NAME: &str = "CLOUDHV_EFI.fd";
pub const GREP_SERIAL_IRQ_CMD: &str = "grep -c 'GICv3.*uart-pl011' /proc/interrupts || true";
pub const GREP_PMU_IRQ_CMD: &str = "grep -c 'GICv3.*arm-pmu' /proc/interrupts || true";
}
#[cfg(target_arch = "aarch64")]
use aarch64::*;
const DIRECT_KERNEL_BOOT_CMDLINE: &str =
"root=/dev/vda1 console=hvc0 rw systemd.journald.forward_to_console=1";
const CONSOLE_TEST_STRING: &str = "Started OpenBSD Secure Shell server";
fn prepare_virtiofsd(tmp_dir: &TempDir, shared_dir: &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(["--shared-dir", shared_dir])
.args(["--socket-path", virtiofsd_socket_path.as_str()])
.args(["--cache", "never"])
.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(),
)
}
fn temp_event_monitor_path(tmp_dir: &TempDir) -> String {
String::from(tmp_dir.as_path().join("event.json").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
}
fn temp_vmcore_file_path(tmp_dir: &TempDir) -> String {
let vmcore_file = String::from(tmp_dir.as_path().join("vmcore").to_str().unwrap());
vmcore_file
}
// 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 edk2_path() -> PathBuf {
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut edk2_path = workload_path;
edk2_path.push(OVMF_NAME);
edk2_path
}
fn cloud_hypervisor_release_path() -> String {
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut ch_release_path = workload_path;
#[cfg(target_arch = "x86_64")]
ch_release_path.push("cloud-hypervisor-static");
#[cfg(target_arch = "aarch64")]
ch_release_path.push("cloud-hypervisor-static-aarch64");
ch_release_path.into_os_string().into_string().unwrap()
}
fn prepare_vhost_user_net_daemon(
tmp_dir: &TempDir,
ip: &str,
tap: Option<&str>,
num_queues: usize,
client_mode: bool,
) -> (std::process::Command, 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,client={}",
tap_str, ip, vunet_socket_path, num_queues, client_mode
)
} else {
format!(
"ip={},mask=255.255.255.0,socket={},num_queues={},queue_size=1024,client={}",
ip, vunet_socket_path, num_queues, client_mode
)
};
let mut command = Command::new(clh_command("vhost_user_net"));
command.args(["--net-backend", net_params.as_str()]);
(command, 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);
}
let output = cmd.output().unwrap();
if output.status.success() {
true
} else {
eprintln!("Error running ch-remote command: {:?}", &cmd);
let stderr = String::from_utf8_lossy(&output.stderr);
eprintln!("stderr: {}", stderr);
false
}
}
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>,
event_file: Option<&str>,
) -> 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));
}
let ret = cmd.status().expect("Failed to launch ch-remote").success();
if let Some(event_path) = event_file {
let latest_events = [
&MetaEvent {
event: "resizing".to_string(),
device_id: None,
},
&MetaEvent {
event: "resized".to_string(),
device_id: None,
},
];
assert!(check_latest_events_exact(&latest_events, event_path));
}
ret
}
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()
}
// setup OVS-DPDK bridge and ports
fn setup_ovs_dpdk() {
// setup OVS-DPDK
assert!(exec_host_command_status("service openvswitch-switch start").success());
assert!(exec_host_command_status("ovs-vsctl init").success());
assert!(
exec_host_command_status("ovs-vsctl set Open_vSwitch . other_config:dpdk-init=true")
.success()
);
assert!(exec_host_command_status("service openvswitch-switch restart").success());
// Create OVS-DPDK bridge and ports
assert!(exec_host_command_status(
"ovs-vsctl add-br ovsbr0 -- set bridge ovsbr0 datapath_type=netdev",
)
.success());
assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user1 -- set Interface vhost-user1 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient1").success());
assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user2 -- set Interface vhost-user2 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient2").success());
assert!(exec_host_command_status("ip link set up dev ovsbr0").success());
assert!(exec_host_command_status("service openvswitch-switch restart").success());
}
fn cleanup_ovs_dpdk() {
assert!(exec_host_command_status("ovs-vsctl del-br ovsbr0").success());
exec_host_command_status("rm -f ovs-vsctl /tmp/dpdkvhostclient1 /tmp/dpdkvhostclient2");
}
// Setup two guests and ensure they are connected through ovs-dpdk
fn setup_ovs_dpdk_guests(
guest1: &Guest,
guest2: &Guest,
api_socket: &str,
release_binary: bool,
) -> (Child, Child) {
setup_ovs_dpdk();
let clh_path = if !release_binary {
clh_command("cloud-hypervisor")
} else {
cloud_hypervisor_release_path()
};
let mut child1 = GuestCommand::new_with_binary_path(guest1, &clh_path)
.args(["--cpus", "boot=2"])
.args(["--memory", "size=0,shared=on"])
.args(["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
.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(), "vhost_user=true,socket=/tmp/dpdkvhostclient1,num_queues=2,queue_size=256,vhost_mode=server"])
.capture_output()
.spawn()
.unwrap();
#[cfg(target_arch = "x86_64")]
let guest_net_iface = "ens5";
#[cfg(target_arch = "aarch64")]
let guest_net_iface = "enp0s5";
let r = std::panic::catch_unwind(|| {
guest1.wait_vm_boot(None).unwrap();
guest1
.ssh_command(&format!(
"sudo ip addr add 172.100.0.1/24 dev {}",
guest_net_iface
))
.unwrap();
guest1
.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
.unwrap();
let guest_ip = guest1.network.guest_ip.clone();
thread::spawn(move || {
ssh_command_ip(
"nc -l 12345",
&guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
});
if r.is_err() {
cleanup_ovs_dpdk();
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 mut child2 = GuestCommand::new_with_binary_path(guest2, &clh_path)
.args(["--api-socket", api_socket])
.args(["--cpus", "boot=2"])
.args(["--memory", "size=0,shared=on"])
.args(["--memory-zone", "id=mem0,size=1G,shared=on,host_numa_node=0"])
.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(), "vhost_user=true,socket=/tmp/dpdkvhostclient2,num_queues=2,queue_size=256,vhost_mode=server"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest2.wait_vm_boot(None).unwrap();
guest2
.ssh_command(&format!(
"sudo ip addr add 172.100.0.2/24 dev {}",
guest_net_iface
))
.unwrap();
guest2
.ssh_command(&format!("sudo ip link set up dev {}", guest_net_iface))
.unwrap();
// Check the connection works properly between the two VMs
guest2.ssh_command("nc -vz 172.100.0.1 12345").unwrap();
});
if r.is_err() {
cleanup_ovs_dpdk();
let _ = child1.kill();
let _ = child2.kill();
let output = child2.wait_with_output().unwrap();
handle_child_output(r, &output);
panic!("Test should already be failed/panicked"); // To explicitly mark this block never return
}
(child1, child2)
}
enum FwType {
Ovmf,
RustHypervisorFirmware,
}
fn fw_path(_fw_type: FwType) -> String {
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("CLOUDHV_EFI.fd");
#[cfg(target_arch = "x86_64")]
{
match _fw_type {
FwType::Ovmf => fw_path.push(OVMF_NAME),
FwType::RustHypervisorFirmware => fw_path.push("hypervisor-fw"),
}
}
fw_path.to_str().unwrap().to_string()
}
struct MetaEvent {
event: String,
device_id: Option<String>,
}
impl MetaEvent {
pub fn match_with_json_event(&self, v: &serde_json::Value) -> bool {
let mut matched = false;
if v["event"].as_str().unwrap() == self.event {
if let Some(device_id) = &self.device_id {
if v["properties"]["id"].as_str().unwrap() == device_id {
matched = true
}
} else {
matched = true;
}
}
matched
}
}
// Parse the event_monitor file based on the format that each event
// is followed by a double newline
fn parse_event_file(event_file: &str) -> Vec<serde_json::Value> {
let content = fs::read(event_file).unwrap();
let mut ret = Vec::new();
for entry in String::from_utf8_lossy(&content)
.trim()
.split("\n\n")
.collect::<Vec<&str>>()
{
ret.push(serde_json::from_str(entry).unwrap());
}
ret
}
// Return true if all events from the input 'expected_events' are matched sequentially
// with events from the 'event_file'
fn check_sequential_events(expected_events: &[&MetaEvent], event_file: &str) -> bool {
let json_events = parse_event_file(event_file);
let len = expected_events.len();
let mut idx = 0;
for e in &json_events {
if idx == len {
break;
}
if expected_events[idx].match_with_json_event(e) {
idx += 1;
}
}
idx == len
}
// Return true if all events from the input 'expected_events' are matched exactly
// with events from the 'event_file'
fn check_sequential_events_exact(expected_events: &[&MetaEvent], event_file: &str) -> bool {
let json_events = parse_event_file(event_file);
assert!(expected_events.len() <= json_events.len());
let json_events = &json_events[..expected_events.len()];
for (idx, e) in json_events.iter().enumerate() {
if !expected_events[idx].match_with_json_event(e) {
return false;
}
}
true
}
// Return true if events from the input 'expected_events' are matched exactly
// with the most recent events from the 'event_file'
fn check_latest_events_exact(latest_events: &[&MetaEvent], event_file: &str) -> bool {
let json_events = parse_event_file(event_file);
assert!(latest_events.len() <= json_events.len());
let json_events = &json_events[(json_events.len() - latest_events.len())..];
for (idx, e) in json_events.iter().enumerate() {
if !latest_events[idx].match_with_json_event(e) {
return false;
}
}
true
}
fn test_cpu_topology(threads_per_core: u8, cores_per_package: u8, packages: u8, use_fw: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let total_vcpus = threads_per_core * cores_per_package * packages;
let direct_kernel_boot_path = direct_kernel_boot_path();
let mut kernel_path = direct_kernel_boot_path.to_str().unwrap();
let fw_path = fw_path(FwType::RustHypervisorFirmware);
if use_fw {
kernel_path = fw_path.as_str();
}
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", kernel_path])
.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);
}
#[allow(unused_variables)]
fn _test_guest_numa_nodes(acpi: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = if acpi {
edk2_path()
} else {
direct_kernel_boot_path()
};
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=6,max=12"])
.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=[0-2,9],distances=[1@15,2@20],memory_zones=mem0",
"guest_numa_id=1,cpus=[3-4,6-8],distances=[0@20,2@25],memory_zones=mem1",
"guest_numa_id=2,cpus=[5,10-11],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();
guest.check_numa_common(
Some(&[960_000, 1_920_000, 2_880_000]),
Some(&[vec![0, 1, 2], vec![3, 4], vec![5]]),
Some(&["10 15 20", "20 10 25", "25 30 10"]),
);
// AArch64 currently does not support hotplug, and therefore we only
// test hotplug-related function on x86_64 here.
#[cfg(target_arch = "x86_64")]
{
guest.enable_memory_hotplug();
// 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");
resize_zone_command(&api_socket, "mem1", "4G");
resize_zone_command(&api_socket, "mem2", "4G");
// Resize to the maximum amount of CPUs and check each NUMA
// node has been assigned the right CPUs set.
resize_command(&api_socket, Some(12), None, None, None);
thread::sleep(std::time::Duration::new(5, 0));
guest.check_numa_common(
Some(&[3_840_000, 3_840_000, 3_840_000]),
Some(&[vec![0, 1, 2, 9], vec![3, 4, 6, 7, 8], vec![5, 10, 11]]),
None,
);
}
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[allow(unused_variables)]
fn _test_power_button(acpi: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let mut cmd = GuestCommand::new(&guest);
let api_socket = temp_api_path(&guest.tmp_dir);
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = if acpi {
edk2_path()
} else {
direct_kernel_boot_path()
};
cmd.args(["--cpus", "boot=1"])
.args(["--memory", "size=512M"])
.args(["--kernel", kernel_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);
}
type PrepareNetDaemon =
dyn Fn(&TempDir, &str, Option<&str>, usize, bool) -> (std::process::Command, String);
fn test_vhost_user_net(
tap: Option<&str>,
num_queues: usize,
prepare_daemon: &PrepareNetDaemon,
generate_host_mac: bool,
client_mode_daemon: bool,
) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
let kernel_path = direct_kernel_boot_path();
let host_mac = if generate_host_mac {
Some(MacAddr::local_random())
} else {
None
};
let (mut daemon_command, vunet_socket_path) = prepare_daemon(
&guest.tmp_dir,
&guest.network.host_ip,
tap,
num_queues,
client_mode_daemon,
);
let net_params = format!(
"vhost_user=true,mac={},socket={},num_queues={},queue_size=1024{},vhost_mode={}",
guest.network.guest_mac,
vunet_socket_path,
num_queues,
if let Some(host_mac) = host_mac {
format!(",host_mac={}", host_mac)
} else {
"".to_owned()
},
if client_mode_daemon {
"server"
} else {
"client"
},
);
let mut ch_command = GuestCommand::new(&guest);
ch_command
.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();
let mut daemon_child: std::process::Child;
let mut child: std::process::Child;
if client_mode_daemon {
child = ch_command.spawn().unwrap();
// Make sure the VMM is waiting for the backend to connect
thread::sleep(std::time::Duration::new(10, 0));
daemon_child = daemon_command.spawn().unwrap();
} else {
daemon_child = daemon_command.spawn().unwrap();
// Make sure the backend is waiting for the VMM to connect
thread::sleep(std::time::Duration::new(10, 0));
child = ch_command.spawn().unwrap();
}
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
if let Some(tap_name) = tap {
let tap_count = exec_host_command_output(&format!("ip link | grep -c {}", tap_name));
assert_eq!(String::from_utf8_lossy(&tap_count.stdout).trim(), "1");
}
if let Some(host_mac) = tap {
let mac_count = exec_host_command_output(&format!("ip link | grep -c {}", host_mac));
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(target_arch = "x86_64")]
{
guest.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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();
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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
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(target_arch = "x86_64")]
{
guest.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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(
prepare_daemon: &dyn Fn(&TempDir, &str) -> (std::process::Child, String),
hotplug: bool,
pci_segment: Option<u16>,
) {
#[cfg(target_arch = "aarch64")]
let focal_image = if hotplug {
FOCAL_IMAGE_UPDATE_KERNEL_NAME.to_string()
} else {
FOCAL_IMAGE_NAME.to_string()
};
#[cfg(target_arch = "x86_64")]
let focal_image = FOCAL_IMAGE_NAME.to_string();
let focal = UbuntuDiskConfig::new(focal_image);
let guest = Guest::new(Box::new(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");
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = if hotplug {
edk2_path()
} else {
direct_kernel_boot_path()
};
let (mut daemon_child, virtiofsd_socket_path) =
prepare_daemon(&guest.tmp_dir, shared_dir.to_str().unwrap());
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]);
if pci_segment.is_some() {
guest_command.args(["--platform", "num_pci_segments=16"]);
}
let fs_params = format!(
"id=myfs0,tag=myfs,socket={},num_queues=1,queue_size=1024{}",
virtiofsd_socket_path,
if let Some(pci_segment) = pci_segment {
format!(",pci_segment={}", pci_segment)
} else {
"".to_owned()
}
);
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);
if let Some(pci_segment) = pci_segment {
assert!(String::from_utf8_lossy(&cmd_output).contains(&format!(
"{{\"id\":\"myfs0\",\"bdf\":\"{:04x}:00:01.0\"}}",
pci_segment
)));
} else {
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
guest
.ssh_command("mkdir -p mount_dir && sudo mount -t virtiofs myfs mount_dir/")
.unwrap();
// 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
guest
.ssh_command("[ ! -f 'mount_dir/file2' ] || true")
.unwrap();
// 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(target_arch = "x86_64")]
{
guest.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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
guest.ssh_command("sudo umount mount_dir").unwrap();
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());
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{}",
virtiofsd_socket_path,
if let Some(pci_segment) = pci_segment {
format!(",pci_segment={}", pci_segment)
} else {
"".to_owned()
}
);
// 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);
if let Some(pci_segment) = pci_segment {
assert!(String::from_utf8_lossy(&cmd_output).contains(&format!(
"{{\"id\":\"myfs0\",\"bdf\":\"{:04x}:00:01.0\"}}",
pci_segment
)));
} else {
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
guest
.ssh_command("mkdir -p mount_dir && sudo mount -t virtiofs myfs mount_dir/")
.unwrap();
// 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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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.reboot_linux(0, None);
assert_eq!(guest.ssh_command("sudo mount /dev/pmem0 /mnt").unwrap(), "");
assert_eq!(
guest
.ssh_command("sudo cat /mnt/test || true")
.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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = if hotplug {
edk2_path()
} else {
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());
guest.reboot_linux(0, None);
// 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 focal1 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest1 = Guest::new(Box::new(focal1));
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 focal2 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest2 = Guest::new(Box::new(focal2));
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
}
fn process_rss_kib(pid: u32) -> usize {
let command = format!("ps -q {} -o rss=", pid);
let rss = exec_host_command_output(&command);
String::from_utf8_lossy(&rss.stdout).trim().parse().unwrap()
}
// 10MB is our maximum accepted overhead.
const MAXIMUM_VMM_OVERHEAD_KB: u32 = 10 * 1024;
#[derive(PartialEq, Eq, 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.
#[cfg(target_arch = "x86_64")]
fn setup_vfio_network_interfaces() {
// 'vfio-br0'
assert!(exec_host_command_status("sudo ip link add name vfio-br0 type bridge").success());
assert!(exec_host_command_status("sudo ip link set vfio-br0 up").success());
assert!(exec_host_command_status("sudo ip addr add 172.18.0.1/24 dev vfio-br0").success());
// 'vfio-tap0'
assert!(exec_host_command_status("sudo ip tuntap add vfio-tap0 mode tap").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap0 master vfio-br0").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap0 up").success());
// 'vfio-tap1'
assert!(exec_host_command_status("sudo ip tuntap add vfio-tap1 mode tap").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap1 master vfio-br0").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap1 up").success());
// 'vfio-tap2'
assert!(exec_host_command_status("sudo ip tuntap add vfio-tap2 mode tap").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap2 master vfio-br0").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap2 up").success());
// 'vfio-tap3'
assert!(exec_host_command_status("sudo ip tuntap add vfio-tap3 mode tap").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap3 master vfio-br0").success());
assert!(exec_host_command_status("sudo ip link set vfio-tap3 up").success());
}
// Tear VFIO test network down
#[cfg(target_arch = "x86_64")]
fn cleanup_vfio_network_interfaces() {
assert!(exec_host_command_status("sudo ip link del vfio-br0").success());
assert!(exec_host_command_status("sudo ip link del vfio-tap0").success());
assert!(exec_host_command_status("sudo ip link del vfio-tap1").success());
assert!(exec_host_command_status("sudo ip link del vfio-tap2").success());
assert!(exec_host_command_status("sudo ip link del vfio-tap3").success());
}
fn balloon_size(api_socket: &str) -> u64 {
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();
let total_mem = &info["config"]["memory"]["size"]
.to_string()
.parse::<u64>()
.unwrap();
let actual_mem = &info["memory_actual_size"]
.to_string()
.parse::<u64>()
.unwrap();
total_mem - actual_mem
}
// 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(acpi: bool) {
// Virtio-iommu support is ready in recent kernel (v5.14). But the kernel in
// Focal image is still old.
// So if ACPI is enabled on AArch64, we use a modified Focal image in which
// the kernel binary has been updated.
#[cfg(target_arch = "aarch64")]
let focal_image = FOCAL_IMAGE_UPDATE_KERNEL_NAME.to_string();
#[cfg(target_arch = "x86_64")]
let focal_image = FOCAL_IMAGE_NAME.to_string();
let focal = UbuntuDiskConfig::new(focal_image);
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = if acpi {
edk2_path()
} else {
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());
// On AArch64, if the guest system boots from FDT, the behavior of IOMMU is a bit
// different with ACPI.
// All devices on the PCI bus will be attached to the virtual IOMMU, except the
// virtio-iommu device itself. So these devices will all be added to IOMMU groups,
// and appear under folder '/sys/kernel/iommu_groups/'.
// The result is, in the case of FDT, IOMMU group '0' contains "0000:00:01.0"
// which is the console. The first disk "0000:00:02.0" is in group '1'.
// While on ACPI, console device is not attached to IOMMU. So the IOMMU group '0'
// contains "0000:00:02.0" which is the first disk.
//
// Verify the iommu group of the first disk.
let iommu_group = if acpi { 0 } else { 1 };
assert_eq!(
guest
.ssh_command(
format!("ls /sys/kernel/iommu_groups/{}/devices", iommu_group).as_str()
)
.unwrap()
.trim(),
"0000:00:02.0"
);
// Verify the iommu group of the second disk.
let iommu_group = if acpi { 1 } else { 2 };
assert_eq!(
guest
.ssh_command(
format!("ls /sys/kernel/iommu_groups/{}/devices", iommu_group).as_str()
)
.unwrap()
.trim(),
"0000:00:03.0"
);
// Verify the iommu group of the network card.
let iommu_group = if acpi { 2 } else { 3 };
assert_eq!(
guest
.ssh_command(
format!("ls /sys/kernel/iommu_groups/{}/devices", iommu_group).as_str()
)
.unwrap()
.trim(),
"0000:00:04.0"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
fn get_reboot_count(guest: &Guest) -> u32 {
// Ensure that the current boot journal is written so reboot counts are valid
guest.ssh_command("sudo journalctl --sync").unwrap();
guest
.ssh_command("sudo journalctl --list-boots | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default()
}
fn enable_guest_watchdog(guest: &Guest, watchdog_sec: u32) {
// Check for PCI device
assert!(guest
.does_device_vendor_pair_match("0x1063", "0x1af4")
.unwrap_or_default());
// Enable systemd watchdog
guest
.ssh_command(&format!(
"echo RuntimeWatchdogSec={}s | sudo tee -a /etc/systemd/system.conf",
watchdog_sec
))
.unwrap();
}
mod common_parallel {
use std::{fs::OpenOptions, io::SeekFrom};
use crate::*;
#[test]
#[cfg(target_arch = "x86_64")]
fn test_bionic_hypervisor_fw() {
test_simple_launch(fw_path(FwType::RustHypervisorFirmware), BIONIC_IMAGE_NAME)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_focal_hypervisor_fw() {
test_simple_launch(fw_path(FwType::RustHypervisorFirmware), FOCAL_IMAGE_NAME)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_bionic_ovmf() {
test_simple_launch(fw_path(FwType::Ovmf), BIONIC_IMAGE_NAME)
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_focal_ovmf() {
test_simple_launch(fw_path(FwType::Ovmf), FOCAL_IMAGE_NAME)
}
#[cfg(target_arch = "x86_64")]
fn test_simple_launch(fw_path: String, disk_path: &str) {
let disk_config = Box::new(UbuntuDiskConfig::new(disk_path.to_string()));
let guest = Guest::new(disk_config);
let event_path = temp_event_monitor_path(&guest.tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=1"])
.args(["--memory", "size=512M"])
.args(["--kernel", fw_path.as_str()])
.default_disks()
.default_net()
.args(["--serial", "tty", "--console", "off"])
.args(["--event-monitor", format!("path={}", event_path).as_str()])
.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_eq!(guest.get_pci_bridge_class().unwrap_or_default(), "0x060000");
let expected_sequential_events = [
&MetaEvent {
event: "starting".to_string(),
device_id: None,
},
&MetaEvent {
event: "booting".to_string(),
device_id: None,
},
&MetaEvent {
event: "booted".to_string(),
device_id: None,
},
&MetaEvent {
event: "activated".to_string(),
device_id: Some("_disk0".to_string()),
},
&MetaEvent {
event: "reset".to_string(),
device_id: Some("_disk0".to_string()),
},
];
assert!(check_sequential_events(
&expected_sequential_events,
&event_path
));
// It's been observed on the Bionic image that udev and snapd
// services can cause some delay in the VM's shutdown. Disabling
// them improves the reliability of this test.
let _ = guest.ssh_command("sudo systemctl disable udev");
let _ = guest.ssh_command("sudo systemctl stop udev");
let _ = guest.ssh_command("sudo systemctl disable snapd");
let _ = guest.ssh_command("sudo systemctl stop snapd");
guest.ssh_command("sudo poweroff").unwrap();
thread::sleep(std::time::Duration::new(10, 0));
let latest_events = [
&MetaEvent {
event: "shutdown".to_string(),
device_id: None,
},
&MetaEvent {
event: "deleted".to_string(),
device_id: None,
},
&MetaEvent {
event: "shutdown".to_string(),
device_id: None,
},
];
assert!(check_latest_events_exact(&latest_events, &event_path));
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_multi_cpu() {
let bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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(not(feature = "mshv"))]
fn test_cpu_topology_421() {
test_cpu_topology(4, 2, 1, false);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_cpu_topology_142() {
test_cpu_topology(1, 4, 2, false);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_cpu_topology_262() {
test_cpu_topology(2, 6, 2, false);
}
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
fn test_cpu_physical_bits() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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_cpu_affinity() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
// We need the host to have at least 4 CPUs if we want to be able
// to run this test.
let host_cpus_count = exec_host_command_output("nproc");
assert!(
String::from_utf8_lossy(&host_cpus_count.stdout)
.trim()
.parse::<u8>()
.unwrap_or(0)
>= 4
);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=2,affinity=[0@[0,2],1@[1,3]]"])
.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();
let pid = child.id();
let taskset_vcpu0 = exec_host_command_output(format!("taskset -pc $(ps -T -p {} | grep vcpu0 | xargs | cut -f 2 -d \" \") | cut -f 6 -d \" \"", pid).as_str());
assert_eq!(String::from_utf8_lossy(&taskset_vcpu0.stdout).trim(), "0,2");
let taskset_vcpu1 = exec_host_command_output(format!("taskset -pc $(ps -T -p {} | grep vcpu1 | xargs | cut -f 2 -d \" \") | cut -f 6 -d \" \"", pid).as_str());
assert_eq!(String::from_utf8_lossy(&taskset_vcpu1.stdout).trim(), "1,3");
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_large_vm() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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_eq!(guest.get_cpu_count().unwrap_or_default(), 48);
assert_eq!(
guest
.ssh_command("lscpu | grep \"On-line\" | cut -f 2 -d \":\" | sed \"s# *##\"")
.unwrap()
.trim(),
"0-47"
);
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]
#[cfg(not(feature = "mshv"))]
fn test_huge_memory() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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() {
_test_power_button(false);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_user_defined_memory_regions() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
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.enable_memory_hotplug();
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.reboot_linux(0, None);
// 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(not(feature = "mshv"))]
fn test_guest_numa_nodes() {
_test_guest_numa_nodes(false);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_iommu_segments() {
let focal_image = FOCAL_IMAGE_NAME.to_string();
let focal = UbuntuDiskConfig::new(focal_image);
let guest = Guest::new(Box::new(focal));
// Prepare another disk file for the virtio-disk device
let test_disk_path = String::from(
guest
.tmp_dir
.as_path()
.join("test-disk.raw")
.to_str()
.unwrap(),
);
assert!(
exec_host_command_status(format!("truncate {} -s 4M", test_disk_path).as_str())
.success()
);
assert!(
exec_host_command_status(format!("mkfs.ext4 {}", test_disk_path).as_str()).success()
);
let api_socket = temp_api_path(&guest.tmp_dir);
let mut cmd = GuestCommand::new(&guest);
cmd.args(["--cpus", "boot=1"])
.args(["--api-socket", &api_socket])
.args(["--memory", "size=512M"])
.args(["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(["--platform", "num_pci_segments=16,iommu_segments=[1]"])
.default_disks()
.capture_output()
.default_net();
let mut child = cmd.spawn().unwrap();
guest.wait_vm_boot(None).unwrap();
let r = std::panic::catch_unwind(|| {
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-disk",
Some(
format!(
"path={},id=test0,pci_segment=1,iommu=on",
test_disk_path.as_str()
)
.as_str(),
),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"test0\",\"bdf\":\"0001:00:01.0\"}"));
// Check IOMMU setup
assert!(guest
.does_device_vendor_pair_match("0x1057", "0x1af4")
.unwrap_or_default());
assert_eq!(
guest
.ssh_command("ls /sys/kernel/iommu_groups/0/devices")
.unwrap()
.trim(),
"0001:00:01.0"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_pci_msi() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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]
fn test_virtio_net_ctrl_queue() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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 = "aarch64")]
let iface = "enp0s4";
#[cfg(target_arch = "x86_64")]
let iface = "ens4";
let r = std::panic::catch_unwind(|| {
assert_eq!(
guest
.ssh_command(
format!("sudo ethtool -K {} rx-gro-hw off && echo success", iface).as_str()
)
.unwrap()
.trim(),
"success"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_pci_multiple_segments() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
// Prepare another disk file for the virtio-disk device
let test_disk_path = String::from(
guest
.tmp_dir
.as_path()
.join("test-disk.raw")
.to_str()
.unwrap(),
);
assert!(
exec_host_command_status(format!("truncate {} -s 4M", test_disk_path).as_str())
.success()
);
assert!(
exec_host_command_status(format!("mkfs.ext4 {}", test_disk_path).as_str()).success()
);
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])
.args(["--platform", "num_pci_segments=16"])
.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={},pci_segment=15", test_disk_path).as_str(),
])
.capture_output()
.default_net();
let mut child = cmd.spawn().unwrap();
guest.wait_vm_boot(None).unwrap();
let grep_cmd = "lspci | grep \"Host bridge\" | wc -l";
let r = std::panic::catch_unwind(|| {
// There should be 16 PCI host bridges in the guest.
assert_eq!(
guest
.ssh_command(grep_cmd)
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
16
);
// Check both if /dev/vdc exists and if the block size is 4M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 4M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Mount the device.
guest.ssh_command("mkdir mount_image").unwrap();
guest
.ssh_command("sudo mount -o rw -t ext4 /dev/vdc mount_image/")
.unwrap();
// Grant all users with write permission.
guest.ssh_command("sudo chmod a+w mount_image/").unwrap();
// Write something to the device.
guest
.ssh_command("sudo echo \"bar\" >> mount_image/foo")
.unwrap();
// Check the content of the block device. The file "foo" should
// contain "bar".
assert_eq!(
guest
.ssh_command("sudo cat mount_image/foo")
.unwrap()
.trim(),
"bar"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_direct_kernel_boot() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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);
let grep_cmd = if cfg!(target_arch = "x86_64") {
"grep -c PCI-MSI /proc/interrupts"
} else {
"grep -c ITS-MSI /proc/interrupts"
};
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);
}
fn _test_virtio_block(image_name: &str, disable_io_uring: bool) {
let focal = UbuntuDiskConfig::new(image_name.to_string());
let guest = Guest::new(Box::new(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_virtio_block_vhdx() {
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut raw_file_path = workload_path.clone();
let mut vhdx_file_path = workload_path;
raw_file_path.push(FOCAL_IMAGE_NAME);
vhdx_file_path.push(FOCAL_IMAGE_NAME_VHDX);
// Generate dynamic VHDX file from RAW file
std::process::Command::new("qemu-img")
.arg("convert")
.arg("-p")
.args(["-f", "raw"])
.args(["-O", "vhdx"])
.arg(raw_file_path.to_str().unwrap())
.arg(vhdx_file_path.to_str().unwrap())
.output()
.expect("Expect generating dynamic VHDx image from RAW image");
_test_virtio_block(FOCAL_IMAGE_NAME_VHDX, false)
}
#[test]
fn test_virtio_block_dynamic_vhdx_expand() {
const VIRTUAL_DISK_SIZE: u64 = 100 << 20;
const EMPTY_VHDX_FILE_SIZE: u64 = 8 << 20;
const FULL_VHDX_FILE_SIZE: u64 = 112 << 20;
const DYNAMIC_VHDX_NAME: &str = "dynamic.vhdx";
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
let mut vhdx_file_path = workload_path;
vhdx_file_path.push(DYNAMIC_VHDX_NAME);
let vhdx_path = vhdx_file_path.to_str().unwrap();
// Generate a 100 MiB dynamic VHDX file
std::process::Command::new("qemu-img")
.arg("create")
.args(["-f", "vhdx"])
.arg(vhdx_path)
.arg(VIRTUAL_DISK_SIZE.to_string())
.output()
.expect("Expect generating dynamic VHDx image from RAW image");
// Check if the size matches with empty VHDx file size
assert_eq!(vhdx_image_size(vhdx_path), EMPTY_VHDX_FILE_SIZE);
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let mut cloud_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={}",
guest.disk_config.disk(DiskType::OperatingSystem).unwrap()
)
.as_str(),
format!(
"path={}",
guest.disk_config.disk(DiskType::CloudInit).unwrap()
)
.as_str(),
format!("path={}", vhdx_path).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 100 MiB.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 100M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Write 100 MB of data to the VHDx disk
guest
.ssh_command("sudo dd if=/dev/urandom of=/dev/vdc bs=1M count=100")
.unwrap();
});
// Check if the size matches with expected expanded VHDx file size
assert_eq!(vhdx_image_size(vhdx_path), FULL_VHDX_FILE_SIZE);
let _ = cloud_child.kill();
let output = cloud_child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
fn vhdx_image_size(disk_name: &str) -> u64 {
std::fs::File::open(disk_name)
.unwrap()
.seek(SeekFrom::End(0))
.unwrap()
}
#[test]
fn test_virtio_block_direct_and_firmware() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
// The OS disk must be copied to a location that is not backed by
// tmpfs, otherwise the syscall openat(2) with O_DIRECT simply fails
// with EINVAL because tmpfs doesn't support this flag.
let mut workloads_path = dirs::home_dir().unwrap();
workloads_path.push("workloads");
let os_dir = TempDir::new_in(workloads_path.as_path()).unwrap();
let mut os_path = os_dir.as_path().to_path_buf();
os_path.push("osdisk.img");
rate_limited_copy(
&guest.disk_config.disk(DiskType::OperatingSystem).unwrap(),
os_path.as_path(),
)
.expect("copying of OS disk failed");
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=1"])
.args(["--memory", "size=512M"])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.args([
"--disk",
format!("path={},direct=on", os_path.as_path().to_str().unwrap()).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(Some(120)).unwrap();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_vhost_user_net_default() {
test_vhost_user_net(None, 2, &prepare_vhost_user_net_daemon, false, false)
}
#[test]
fn test_vhost_user_net_named_tap() {
test_vhost_user_net(
Some("mytap0"),
2,
&prepare_vhost_user_net_daemon,
false,
false,
)
}
#[test]
fn test_vhost_user_net_existing_tap() {
test_vhost_user_net(
Some("vunet-tap0"),
2,
&prepare_vhost_user_net_daemon,
false,
false,
)
}
#[test]
fn test_vhost_user_net_multiple_queues() {
test_vhost_user_net(None, 4, &prepare_vhost_user_net_daemon, false, false)
}
#[test]
fn test_vhost_user_net_tap_multiple_queues() {
test_vhost_user_net(
Some("vunet-tap1"),
4,
&prepare_vhost_user_net_daemon,
false,
false,
)
}
#[test]
fn test_vhost_user_net_host_mac() {
test_vhost_user_net(None, 2, &prepare_vhost_user_net_daemon, true, false)
}
#[test]
fn test_vhost_user_net_client_mode() {
test_vhost_user_net(None, 2, &prepare_vhost_user_net_daemon, false, true)
}
#[test]
fn test_vhost_user_blk_default() {
test_vhost_user_blk(2, false, false, Some(&prepare_vubd))
}
#[test]
fn test_vhost_user_blk_readonly() {
test_vhost_user_blk(1, true, false, Some(&prepare_vubd))
}
#[test]
fn test_vhost_user_blk_direct() {
test_vhost_user_blk(1, false, true, Some(&prepare_vubd))
}
#[test]
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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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("grep -c IO-APIC.*timer /proc/interrupts || true")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
assert_eq!(
guest
.ssh_command("grep -c IO-APIC.*cascade /proc/interrupts || true")
.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_dmi_serial_number() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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])
.args(["--platform", "serial_number=a=b;c=d"])
.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("sudo cat /sys/class/dmi/id/product_serial")
.unwrap()
.trim(),
"a=b;c=d"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_dmi_uuid() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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])
.args(["--platform", "uuid=1e8aa28a-435d-4027-87f4-40dceff1fa0a"])
.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("sudo cat /sys/class/dmi/id/product_uuid")
.unwrap()
.trim(),
"1e8aa28a-435d-4027-87f4-40dceff1fa0a"
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_dmi_oem_strings() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let s1 = "io.systemd.credential:xx=yy";
let s2 = "This is a test string";
let oem_strings = format!("oem_strings=[{},{}]", s1, s2);
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])
.args(["--platform", &oem_strings])
.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("sudo dmidecode --oem-string count")
.unwrap()
.trim(),
"2"
);
assert_eq!(
guest
.ssh_command("sudo dmidecode --oem-string 1")
.unwrap()
.trim(),
s1
);
assert_eq!(
guest
.ssh_command("sudo dmidecode --oem-string 2")
.unwrap()
.trim(),
s2
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_virtio_fs() {
_test_virtio_fs(&prepare_virtiofsd, false, None)
}
#[test]
fn test_virtio_fs_hotplug() {
_test_virtio_fs(&prepare_virtiofsd, true, None)
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_virtio_fs_multi_segment_hotplug() {
_test_virtio_fs(&prepare_virtiofsd, true, Some(15))
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_virtio_fs_multi_segment() {
_test_virtio_fs(&prepare_virtiofsd, false, Some(15))
}
#[test]
fn test_virtio_pmem_persist_writes() {
test_virtio_pmem(false, false)
}
#[test]
fn test_virtio_pmem_discard_writes() {
test_virtio_pmem(true, false)
}
#[test]
fn test_virtio_pmem_with_size() {
test_virtio_pmem(true, true)
}
#[test]
fn test_boot_from_virtio_pmem() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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 = exec_host_command_output("ip link | grep -c mytap1");
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]
#[cfg(target_arch = "aarch64")]
fn test_pmu_on() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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();
// Test that PMU exists.
assert_eq!(
guest
.ssh_command(GREP_PMU_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);
}
#[test]
fn test_serial_off() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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(CONSOLE_TEST_STRING));
});
handle_child_output(r, &output);
}
#[test]
fn test_serial_tty() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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(CONSOLE_TEST_STRING));
});
handle_child_output(r, &output);
}
#[test]
fn test_serial_file() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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!(output.status.success());
// 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(CONSOLE_TEST_STRING));
});
handle_child_output(r, &output);
}
#[test]
fn test_pty_interaction() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
let serial_option = if cfg!(target_arch = "x86_64") {
" console=ttyS0"
} else {
" console=ttyAMA0"
};
let cmdline = DIRECT_KERNEL_BOOT_CMDLINE.to_owned() + serial_option;
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;
assert!(empty <= 5, "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!(output.status.success())
});
handle_child_output(r, &output);
}
#[test]
fn test_virtio_console() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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();
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]
fn test_console_file() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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!(output.status.success());
// 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();
if !buf.contains(CONSOLE_TEST_STRING) {
eprintln!(
"\n\n==== Console file output ====\n\n{}\n\n==== End console file output ====",
buf
);
}
assert!(buf.contains(CONSOLE_TEST_STRING));
});
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
#[ignore = "See #4324"]
// 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.
// Also, we pass-through a vitio-blk device to the L2 VM to test the 32-bit
// vfio device support
fn test_vfio() {
setup_vfio_network_interfaces();
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new_from_ip_range(Box::new(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.clone();
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 mut blk_file_path = workload_path;
blk_file_path.push("blk.img");
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(),
format!("path={},iommu=on", blk_file_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(),
8,
);
// Check both if /dev/vdc exists and if the block size is 16M in L2 VM
assert_eq!(
guest
.ssh_command_l2_1("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Hotplug an extra virtio-net device through L2 VM.
guest
.ssh_command_l1(
"echo 0000:00:09.0 | sudo tee /sys/bus/pci/devices/0000:00:09.0/driver/unbind",
)
.unwrap();
guest
.ssh_command_l1("echo 0000:00:09.0 | sudo tee /sys/bus/pci/drivers/vfio-pci/bind")
.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/0000:00:09.0,id=vfio123",
)
.unwrap();
assert!(vfio_hotplug_output.contains("{\"id\":\"vfio123\",\"bdf\":\"0000:00:08.0\"}"));
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 9 PCI devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
9,
);
// 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 8 devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
8,
);
// 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]
fn test_direct_kernel_boot_noacpi() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_reboot() {
let bionic = UbuntuDiskConfig::new(BIONIC_IMAGE_NAME.to_string());
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
vec![Box::new(bionic), Box::new(focal)]
.drain(..)
.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 fd_count_1 = get_fd_count(child.id());
guest.reboot_linux(0, Some(120));
let fd_count_2 = get_fd_count(child.id());
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!(output.status.success());
});
handle_child_output(r, &output);
});
}
#[test]
fn test_virtio_vsock() {
_test_virtio_vsock(false)
}
#[test]
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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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,
direct_kernel_boot_path().to_str().unwrap(),
DIRECT_KERNEL_BOOT_CMDLINE,
);
let temp_config_path = guest.tmp_dir.as_path().join("config");
std::fs::write(&temp_config_path, http_body).unwrap();
remote_command(
&api_socket,
"create",
Some(temp_config_path.as_os_str().to_str().unwrap()),
);
// Then boot it
remote_command(&api_socket, "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);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
// Start cloud-hypervisor with no VM parameters, only the API server running.
// From the API: Create a VM, boot it and check it can be shutdown and then
// booted again
fn test_api_shutdown() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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,
direct_kernel_boot_path().to_str().unwrap(),
DIRECT_KERNEL_BOOT_CMDLINE,
);
let r = std::panic::catch_unwind(|| {
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);
guest.wait_vm_boot(None).unwrap();
// 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);
// Sync and shutdown without powering off to prevent filesystem
// corruption.
guest.ssh_command("sync").unwrap();
guest.ssh_command("sudo shutdown -H now").unwrap();
// Wait for the guest to be fully shutdown
thread::sleep(std::time::Duration::new(20, 0));
// Then shut it down
curl_command(
&api_socket,
"PUT",
"http://localhost/api/v1/vm.shutdown",
None,
);
// Then boot it again
curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
guest.wait_vm_boot(None).unwrap();
// 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);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
// Start cloud-hypervisor with no VM parameters, only the API server running.
// From the API: Create a VM, boot it and check it can be deleted and then recreated
// booted again.
fn test_api_delete() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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,
direct_kernel_boot_path().to_str().unwrap(),
DIRECT_KERNEL_BOOT_CMDLINE,
);
let r = std::panic::catch_unwind(|| {
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);
guest.wait_vm_boot(None).unwrap();
// 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);
// Sync and shutdown without powering off to prevent filesystem
// corruption.
guest.ssh_command("sync").unwrap();
guest.ssh_command("sudo shutdown -H now").unwrap();
// Wait for the guest to be fully shutdown
thread::sleep(std::time::Duration::new(20, 0));
// Then delete it
curl_command(
&api_socket,
"PUT",
"http://localhost/api/v1/vm.delete",
None,
);
curl_command(
&api_socket,
"PUT",
"http://localhost/api/v1/vm.create",
Some(&http_body),
);
// Then boot it again
curl_command(&api_socket, "PUT", "http://localhost/api/v1/vm.boot", None);
guest.wait_vm_boot(None).unwrap();
// 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);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
// Start cloud-hypervisor with no VM parameters, only the API server running.
// From the API: Create a VM, boot it and check that it looks as expected.
// Then we pause the VM, check that it's no longer available.
// Finally we resume the VM and check that it's available.
fn test_api_pause_resume() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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,
direct_kernel_boot_path().to_str().unwrap(),
DIRECT_KERNEL_BOOT_CMDLINE,
);
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);
// 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]
fn test_virtio_iommu() {
_test_virtio_iommu(cfg!(target_arch = "x86_64"))
}
#[test]
// 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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_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",
])
.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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
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, 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)
);
guest.reboot_linux(0, None);
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, 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, 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]
fn test_memory_hotplug() {
#[cfg(target_arch = "aarch64")]
let focal_image = FOCAL_IMAGE_UPDATE_KERNEL_NAME.to_string();
#[cfg(target_arch = "x86_64")]
let focal_image = FOCAL_IMAGE_NAME.to_string();
let focal = UbuntuDiskConfig::new(focal_image);
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_path();
#[cfg(target_arch = "x86_64")]
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.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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), 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);
guest.reboot_linux(0, None);
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), None);
thread::sleep(std::time::Duration::new(10, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 960_000);
guest.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 2048 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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, None);
guest.reboot_linux(1, None);
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(not(feature = "mshv"))]
fn test_virtio_mem() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
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.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 1024 << 20;
resize_command(&api_socket, None, Some(desired_ram), None, 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, 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, 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.reboot_linux(0, None);
// 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, 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")]
#[cfg(not(feature = "mshv"))]
// Test both vCPU and memory resizing together
fn test_resize() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
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.enable_memory_hotplug();
// Resize the VM
let desired_vcpus = 4;
let desired_ram = 1024 << 20;
resize_command(
&api_socket,
Some(desired_vcpus),
Some(desired_ram),
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)
);
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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
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]
fn test_disk_hotplug() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_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 -c vdc.*16M || true")
.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.
guest
.ssh_command("sudo dd if=/dev/vdc of=/dev/null bs=1M iflag=direct count=16")
.unwrap();
// 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 -c vdc.*16M || true")
.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.
guest
.ssh_command("sudo dd if=/dev/vdc of=/dev/null bs=1M iflag=direct count=16")
.unwrap();
// Reboot the VM.
guest.reboot_linux(0, None);
// 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 -c vdc.*16M || true")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
guest.reboot_linux(1, None);
// Check device still absent
assert_eq!(
guest
.ssh_command("lsblk | grep -c vdc.*16M || true")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[allow(clippy::useless_conversion)]
fn create_loop_device(backing_file_path: &str, block_size: u32, num_retries: usize) -> String {
const LOOP_CONFIGURE: u64 = 0x4c0a;
const LOOP_CTL_GET_FREE: u64 = 0x4c82;
const LOOP_CTL_PATH: &str = "/dev/loop-control";
const LOOP_DEVICE_PREFIX: &str = "/dev/loop";
#[repr(C)]
struct LoopInfo64 {
lo_device: u64,
lo_inode: u64,
lo_rdevice: u64,
lo_offset: u64,
lo_sizelimit: u64,
lo_number: u32,
lo_encrypt_type: u32,
lo_encrypt_key_size: u32,
lo_flags: u32,
lo_file_name: [u8; 64],
lo_crypt_name: [u8; 64],
lo_encrypt_key: [u8; 32],
lo_init: [u64; 2],
}
impl Default for LoopInfo64 {
fn default() -> Self {
LoopInfo64 {
lo_device: 0,
lo_inode: 0,
lo_rdevice: 0,
lo_offset: 0,
lo_sizelimit: 0,
lo_number: 0,
lo_encrypt_type: 0,
lo_encrypt_key_size: 0,
lo_flags: 0,
lo_file_name: [0; 64],
lo_crypt_name: [0; 64],
lo_encrypt_key: [0; 32],
lo_init: [0; 2],
}
}
}
#[derive(Default)]
#[repr(C)]
struct LoopConfig {
fd: u32,
block_size: u32,
info: LoopInfo64,
_reserved: [u64; 8],
}
// Open loop-control device
let loop_ctl_file = OpenOptions::new()
.read(true)
.write(true)
.open(LOOP_CTL_PATH)
.unwrap();
// Request a free loop device
let loop_device_number = unsafe {
libc::ioctl(
loop_ctl_file.as_raw_fd(),
LOOP_CTL_GET_FREE.try_into().unwrap(),
)
};
if loop_device_number < 0 {
panic!("Couldn't find a free loop device");
}
// Create loop device path
let loop_device_path = format!("{}{}", LOOP_DEVICE_PREFIX, loop_device_number);
// Open loop device
let loop_device_file = OpenOptions::new()
.read(true)
.write(true)
.open(&loop_device_path)
.unwrap();
// Open backing file
let backing_file = OpenOptions::new()
.read(true)
.write(true)
.open(backing_file_path)
.unwrap();
let loop_config = LoopConfig {
fd: backing_file.as_raw_fd() as u32,
block_size,
..Default::default()
};
for i in 0..num_retries {
let ret = unsafe {
libc::ioctl(
loop_device_file.as_raw_fd(),
LOOP_CONFIGURE.try_into().unwrap(),
&loop_config,
)
};
if ret != 0 {
if i < num_retries - 1 {
println!(
"Iteration {}: Failed to configure the loop device {}: {}",
i,
loop_device_path,
std::io::Error::last_os_error()
);
} else {
panic!(
"Failed {} times trying to configure the loop device {}: {}",
num_retries,
loop_device_path,
std::io::Error::last_os_error()
);
}
} else {
break;
}
// Wait for a bit before retrying
thread::sleep(std::time::Duration::new(5, 0));
}
loop_device_path
}
#[test]
fn test_virtio_block_topology() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let test_disk_path = guest.tmp_dir.as_path().join("test.img");
let output = exec_host_command_output(
format!(
"qemu-img create -f raw {} 16M",
test_disk_path.to_str().unwrap()
)
.as_str(),
);
if !output.status.success() {
let stdout = String::from_utf8_lossy(&output.stdout);
let stderr = String::from_utf8_lossy(&output.stderr);
panic!(
"qemu-img command failed\nstdout\n{}\nstderr\n{}",
stdout, stderr
);
}
let loop_dev = create_loop_device(test_disk_path.to_str().unwrap(), 4096, 5);
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={}",
guest.disk_config.disk(DiskType::OperatingSystem).unwrap()
)
.as_str(),
format!(
"path={}",
guest.disk_config.disk(DiskType::CloudInit).unwrap()
)
.as_str(),
format!("path={}", &loop_dev).as_str(),
])
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// MIN-IO column
assert_eq!(
guest
.ssh_command("lsblk -t| grep vdc | awk '{print $3}'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
4096
);
// PHY-SEC column
assert_eq!(
guest
.ssh_command("lsblk -t| grep vdc | awk '{print $5}'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
4096
);
// LOG-SEC column
assert_eq!(
guest
.ssh_command("lsblk -t| grep vdc | awk '{print $6}'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
4096
);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
Command::new("losetup")
.args(["-d", &loop_dev])
.output()
.expect("loop device not found");
}
#[test]
fn test_virtio_balloon_deflate_on_oom() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let api_socket = temp_api_path(&guest.tmp_dir);
//Let's start a 4G guest with balloon occupied 2G memory
let mut child = GuestCommand::new(&guest)
.args(["--api-socket", &api_socket])
.args(["--cpus", "boot=1"])
.args(["--memory", "size=4G"])
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(["--balloon", "size=2G,deflate_on_oom=on"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Wait for balloon memory's initialization and check its size.
// The virtio-balloon driver might take a few seconds to report the
// balloon effective size back to the VMM.
thread::sleep(std::time::Duration::new(20, 0));
let orig_balloon = balloon_size(&api_socket);
println!("The original balloon memory size is {} bytes", orig_balloon);
assert!(orig_balloon == 2147483648);
// Two steps to verify if the 'deflate_on_oom' parameter works.
// 1st: run a command to trigger an OOM in the guest.
guest
.ssh_command("echo f | sudo tee /proc/sysrq-trigger")
.unwrap();
// Give some time for the OOM to happen in the guest and be reported
// back to the host.
thread::sleep(std::time::Duration::new(20, 0));
// 2nd: check balloon_mem's value to verify balloon has been automatically deflated
let deflated_balloon = balloon_size(&api_socket);
println!(
"After deflating, balloon memory size is {} bytes",
deflated_balloon
);
// Verify the balloon size deflated
assert!(deflated_balloon < 2147483648);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_virtio_balloon_free_page_reporting() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
//Let's start a 4G guest with balloon occupied 2G memory
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=1"])
.args(["--memory", "size=4G"])
.args(["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.args(["--balloon", "size=0,free_page_reporting=on"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let pid = child.id();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check the initial RSS is less than 1GiB
let rss = process_rss_kib(pid);
println!("RSS {} < 1048576", rss);
assert!(rss < 1048576);
// Spawn a command inside the guest to consume 2GiB of RAM for 60
// seconds
let guest_ip = guest.network.guest_ip.clone();
thread::spawn(move || {
ssh_command_ip(
"stress --vm 1 --vm-bytes 2G --vm-keep --timeout 60",
&guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
// Wait for 50 seconds to make sure the stress command is consuming
// the expected amount of memory.
thread::sleep(std::time::Duration::new(50, 0));
let rss = process_rss_kib(pid);
println!("RSS {} >= 2097152", rss);
assert!(rss >= 2097152);
// Wait for an extra minute to make sure the stress command has
// completed and that the guest reported the free pages to the VMM
// through the virtio-balloon device. We expect the RSS to be under
// 2GiB.
thread::sleep(std::time::Duration::new(60, 0));
let rss = process_rss_kib(pid);
println!("RSS {} < 2097152", rss);
assert!(rss < 2097152);
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_pmem_hotplug() {
_test_pmem_hotplug(None)
}
#[test]
fn test_pmem_multi_segment_hotplug() {
_test_pmem_hotplug(Some(15))
}
fn _test_pmem_hotplug(pci_segment: Option<u16>) {
#[cfg(target_arch = "aarch64")]
let focal_image = FOCAL_IMAGE_UPDATE_KERNEL_NAME.to_string();
#[cfg(target_arch = "x86_64")]
let focal_image = FOCAL_IMAGE_NAME.to_string();
let focal = UbuntuDiskConfig::new(focal_image);
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_path();
let api_socket = temp_api_path(&guest.tmp_dir);
let mut cmd = GuestCommand::new(&guest);
cmd.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();
if pci_segment.is_some() {
cmd.args(["--platform", "num_pci_segments=16"]);
}
let mut child = cmd.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 || true")
.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(),
if let Some(pci_segment) = pci_segment {
format!(",pci_segment={}", pci_segment)
} else {
"".to_owned()
}
)),
);
assert!(cmd_success);
if let Some(pci_segment) = pci_segment {
assert!(String::from_utf8_lossy(&cmd_output).contains(&format!(
"{{\"id\":\"test0\",\"bdf\":\"{:04x}:00:01.0\"}}",
pci_segment
)));
} else {
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.reboot_linux(0, None);
// 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 -c pmem0.*128M || true")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(1),
0
);
guest.reboot_linux(1, None);
// Check still absent after reboot
assert_eq!(
guest
.ssh_command("lsblk | grep -c pmem0.*128M || true")
.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_net_hotplug() {
_test_net_hotplug(None)
}
#[test]
fn test_net_multi_segment_hotplug() {
_test_net_hotplug(Some(15))
}
fn _test_net_hotplug(pci_segment: Option<u16>) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_path();
let api_socket = temp_api_path(&guest.tmp_dir);
// Boot without network
let mut cmd = GuestCommand::new(&guest);
cmd.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();
if pci_segment.is_some() {
cmd.args(["--platform", "num_pci_segments=16"]);
}
let mut child = cmd.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(
format!(
"{}{},id=test0",
guest.default_net_string(),
if let Some(pci_segment) = pci_segment {
format!(",pci_segment={}", pci_segment)
} else {
"".to_owned()
}
)
.as_str(),
),
);
assert!(cmd_success);
if let Some(pci_segment) = pci_segment {
assert!(String::from_utf8_lossy(&cmd_output).contains(&format!(
"{{\"id\":\"test0\",\"bdf\":\"{:04x}:00:01.0\"}}",
pci_segment
)));
} else {
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"test0\",\"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("test0"),));
thread::sleep(std::time::Duration::new(5, 0));
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-net",
Some(
format!(
"{}{},id=test1",
guest.default_net_string(),
if let Some(pci_segment) = pci_segment {
format!(",pci_segment={}", pci_segment)
} else {
"".to_owned()
}
)
.as_str(),
),
);
assert!(cmd_success);
if let Some(pci_segment) = pci_segment {
assert!(String::from_utf8_lossy(&cmd_output).contains(&format!(
"{{\"id\":\"test1\",\"bdf\":\"{:04x}:00:01.0\"}}",
pci_segment
)));
} else {
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"test1\",\"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.reboot_linux(0, None);
// 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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let mut workload_path = dirs::home_dir().unwrap();
workload_path.push("workloads");
#[cfg(target_arch = "x86_64")]
let mut kernels = vec![direct_kernel_boot_path()];
#[cfg(target_arch = "aarch64")]
let kernels = vec![direct_kernel_boot_path()];
#[cfg(target_arch = "x86_64")]
{
let mut pvh_kernel_path = workload_path.clone();
pvh_kernel_path.push("vmlinux");
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]
fn test_snapshot_restore() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let api_socket_source = format!("{}.1", 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 event_path = temp_event_monitor_path(&guest.tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(["--api-socket", &api_socket_source])
.args(["--event-monitor", format!("path={}", event_path).as_str()])
.args(["--cpus", "boot=4"])
.args([
"--memory",
"size=4G,hotplug_method=virtio-mem,hotplug_size=32G",
])
.args(["--balloon", "size=0"])
.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.");
// 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);
// Increase guest RAM with virtio-mem
resize_command(
&api_socket_source,
None,
Some(6 << 30),
None,
Some(&event_path),
);
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
// Use balloon to remove RAM from the VM
resize_command(
&api_socket_source,
None,
None,
Some(1 << 30),
Some(&event_path),
);
thread::sleep(std::time::Duration::new(5, 0));
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
// Check the guest virtio-devices, e.g. block, rng, vsock, console, and net
guest.check_devices_common(Some(&socket), Some(&console_text), None);
// x86_64: 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
// AArch64: Device hotplug is currently not supported, skipping here.
#[cfg(target_arch = "x86_64")]
{
assert!(remote_command(
&api_socket_source,
"remove-device",
Some(net_id),
));
thread::sleep(std::time::Duration::new(10, 0));
let latest_events = [&MetaEvent {
event: "device-removed".to_string(),
device_id: Some(net_id.to_string()),
}];
assert!(check_latest_events_exact(&latest_events, &event_path));
// Plug the virtio-net device again
assert!(remote_command(
&api_socket_source,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
}
// Pause the VM
assert!(remote_command(&api_socket_source, "pause", None));
let latest_events = [
&MetaEvent {
event: "pausing".to_string(),
device_id: None,
},
&MetaEvent {
event: "paused".to_string(),
device_id: None,
},
];
assert!(check_latest_events_exact(&latest_events, &event_path));
// Take a snapshot from the VM
assert!(remote_command(
&api_socket_source,
"snapshot",
Some(format!("file://{}", snapshot_dir).as_str()),
));
// Wait to make sure the snapshot is completed
thread::sleep(std::time::Duration::new(10, 0));
let latest_events = [
&MetaEvent {
event: "snapshotting".to_string(),
device_id: None,
},
&MetaEvent {
event: "snapshotted".to_string(),
device_id: None,
},
];
assert!(check_latest_events_exact(&latest_events, &event_path));
});
// 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();
let api_socket_restored = format!("{}.2", temp_api_path(&guest.tmp_dir));
let event_path_restored = format!("{}.2", temp_event_monitor_path(&guest.tmp_dir));
// Restore the VM from the snapshot
let mut child = GuestCommand::new(&guest)
.args(["--api-socket", &api_socket_restored])
.args([
"--event-monitor",
format!("path={}", event_path_restored).as_str(),
])
.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 expected_events = [
&MetaEvent {
event: "starting".to_string(),
device_id: None,
},
&MetaEvent {
event: "restoring".to_string(),
device_id: None,
},
];
assert!(check_sequential_events_exact(
&expected_events,
&event_path_restored
));
let latest_events = [&MetaEvent {
event: "restored".to_string(),
device_id: None,
}];
assert!(check_latest_events_exact(
&latest_events,
&event_path_restored
));
let r = std::panic::catch_unwind(|| {
// Resume the VM
assert!(remote_command(&api_socket_restored, "resume", None));
let latest_events = [
&MetaEvent {
event: "resuming".to_string(),
device_id: None,
},
&MetaEvent {
event: "resumed".to_string(),
device_id: None,
},
];
assert!(check_latest_events_exact(
&latest_events,
&event_path_restored
));
// Perform same checks to validate VM has been properly restored
assert_eq!(guest.get_cpu_count().unwrap_or_default(), 4);
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
// Deflate balloon to restore entire RAM to the VM
resize_command(&api_socket_restored, None, None, Some(0), None);
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
// Decrease guest RAM with virtio-mem
resize_command(&api_socket_restored, None, Some(5 << 30), None, None);
thread::sleep(std::time::Duration::new(5, 0));
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
guest.check_devices_common(Some(&socket), Some(&console_text), None);
});
// 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 focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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);
guest
.ssh_command("dd if=/dev/zero of=test count=8 bs=1M")
.unwrap();
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]
#[cfg(feature = "guest_debug")]
fn test_coredump() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
let mut cmd = GuestCommand::new(&guest);
cmd.args(["--cpus", "boot=4"])
.args(["--memory", "size=4G"])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.default_disks()
.args(["--net", guest.default_net_string().as_str()])
.args(["--api-socket", &api_socket])
.capture_output();
let mut child = cmd.spawn().unwrap();
let vmcore_file = temp_vmcore_file_path(&guest.tmp_dir);
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(remote_command(&api_socket, "pause", None));
assert!(remote_command(
&api_socket,
"coredump",
Some(format!("file://{}", vmcore_file).as_str()),
));
// the num of CORE notes should equals to vcpu
let readelf_core_num_cmd = format!(
"readelf --all {} |grep CORE |grep -v Type |wc -l",
vmcore_file
);
let core_num_in_elf = exec_host_command_output(&readelf_core_num_cmd);
assert_eq!(String::from_utf8_lossy(&core_num_in_elf.stdout).trim(), "4");
// the num of QEMU notes should equals to vcpu
let readelf_vmm_num_cmd = format!("readelf --all {} |grep QEMU |wc -l", vmcore_file);
let vmm_num_in_elf = exec_host_command_output(&readelf_vmm_num_cmd);
assert_eq!(String::from_utf8_lossy(&vmm_num_in_elf.stdout).trim(), "4");
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_watchdog() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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();
let mut expected_reboot_count = 1;
// Enable the watchdog with a 15s timeout
enable_guest_watchdog(&guest, 15);
// Reboot and check that systemd has activated the watchdog
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
expected_reboot_count += 1;
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
assert_eq!(
guest
.ssh_command("sudo journalctl | grep -c -- \"Watchdog started\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
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
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
// 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 a reboot is triggerred by the watchdog
expected_reboot_count += 1;
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
#[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
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
}
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_tap_from_fd() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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.reboot_linux(0, None);
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);
}
// 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(hotplug: bool, guest_macvtap_name: &str, host_macvtap_name: &str) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
#[cfg(target_arch = "x86_64")]
let kernel_path = direct_kernel_boot_path();
#[cfg(target_arch = "aarch64")]
let kernel_path = edk2_path();
let phy_net = "eth0";
// Create a macvtap interface for the guest VM to use
assert!(exec_host_command_status(&format!(
"sudo ip link add link {} name {} type macvtap mod bridge",
phy_net, guest_macvtap_name
))
.success());
assert!(exec_host_command_status(&format!(
"sudo ip link set {} address {} up",
guest_macvtap_name, guest.network.guest_mac
))
.success());
assert!(
exec_host_command_status(&format!("sudo ip link show {}", guest_macvtap_name))
.success()
);
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());
assert!(
exec_host_command_status(&format!("sudo chown $UID.$UID {}", tap_device)).success()
);
let cstr_tap_device = std::ffi::CString::new(tap_device).unwrap();
let tap_fd1 = unsafe { libc::open(cstr_tap_device.as_ptr(), libc::O_RDWR) };
assert!(tap_fd1 > 0);
let tap_fd2 = unsafe { libc::open(cstr_tap_device.as_ptr(), libc::O_RDWR) };
assert!(tap_fd2 > 0);
// Create a macvtap on the same physical net interface for
// the host machine to use
assert!(exec_host_command_status(&format!(
"sudo ip link add link {} name {} type macvtap mod bridge",
phy_net, host_macvtap_name
))
.success());
// Use default mask "255.255.255.0"
assert!(exec_host_command_status(&format!(
"sudo ip address add {}/24 dev {}",
guest.network.host_ip, host_macvtap_name
))
.success());
assert!(exec_host_command_status(&format!(
"sudo ip link set dev {} up",
host_macvtap_name
))
.success());
let mut guest_command = GuestCommand::new(&guest);
guest_command
.args(["--cpus", "boot=2"])
.args(["--memory", "size=512M"])
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--api-socket", &api_socket]);
let net_params = format!(
"fd=[{},{}],mac={},num_queues=4",
tap_fd1, tap_fd2, guest.network.guest_mac
);
if !hotplug {
guest_command.args(["--net", &net_params]);
}
let mut child = guest_command.capture_output().spawn().unwrap();
if hotplug {
// Give some time to the VMM process to listen to the API
// socket. This is the only requirement to avoid the following
// call to ch-remote from failing.
thread::sleep(std::time::Duration::new(10, 0));
// Hotplug the virtio-net device
let (cmd_success, cmd_output) =
remote_command_w_output(&api_socket, "add-net", Some(&net_params));
assert!(cmd_success);
#[cfg(target_arch = "x86_64")]
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"_net2\",\"bdf\":\"0000:00:05.0\"}"));
#[cfg(target_arch = "aarch64")]
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"_net0\",\"bdf\":\"0000:00:05.0\"}"));
}
// The functional connectivity provided by the virtio-net device
// gets tested through wait_vm_boot() as it expects to receive a
// HTTP request, and through the SSH command as well.
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();
exec_host_command_status(&format!("sudo ip link del {}", guest_macvtap_name));
exec_host_command_status(&format!("sudo ip link del {}", host_macvtap_name));
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_macvtap() {
_test_macvtap(false, "guestmacvtap0", "hostmacvtap0")
}
#[test]
fn test_macvtap_hotplug() {
_test_macvtap(true, "guestmacvtap1", "hostmacvtap1")
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_ovs_dpdk() {
let focal1 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest1 = Guest::new(Box::new(focal1));
let focal2 = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest2 = Guest::new(Box::new(focal2));
let api_socket_source = format!("{}.1", temp_api_path(&guest2.tmp_dir));
let (mut child1, mut child2) =
setup_ovs_dpdk_guests(&guest1, &guest2, &api_socket_source, false);
// Create the snapshot directory
let snapshot_dir = temp_snapshot_dir_path(&guest2.tmp_dir);
let r = std::panic::catch_unwind(|| {
// Remove one of the two ports from the OVS bridge
assert!(exec_host_command_status("ovs-vsctl del-port vhost-user1").success());
// Spawn a new netcat listener in the first VM
let guest_ip = guest1.network.guest_ip.clone();
thread::spawn(move || {
ssh_command_ip(
"nc -l 12345",
&guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
// Wait for the server to be listening
thread::sleep(std::time::Duration::new(5, 0));
// Check the connection fails this time
assert!(guest2.ssh_command("nc -vz 172.100.0.1 12345").is_err());
// Add the OVS port back
assert!(exec_host_command_status("ovs-vsctl add-port ovsbr0 vhost-user1 -- set Interface vhost-user1 type=dpdkvhostuserclient options:vhost-server-path=/tmp/dpdkvhostclient1").success());
// And finally check the connection is functional again
guest2.ssh_command("nc -vz 172.100.0.1 12345").unwrap();
// Pause the VM
assert!(remote_command(&api_socket_source, "pause", None));
// Take a snapshot from the VM
assert!(remote_command(
&api_socket_source,
"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
let _ = child2.kill();
let output = child2.wait_with_output().unwrap();
handle_child_output(r, &output);
// Remove the vhost-user socket file.
Command::new("rm")
.arg("-f")
.arg("/tmp/dpdkvhostclient2")
.output()
.unwrap();
let api_socket_restored = format!("{}.2", temp_api_path(&guest2.tmp_dir));
// Restore the VM from the snapshot
let mut child2 = GuestCommand::new(&guest2)
.args(["--api-socket", &api_socket_restored])
.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_restored, "resume", None));
// Spawn a new netcat listener in the first VM
let guest_ip = guest1.network.guest_ip.clone();
thread::spawn(move || {
ssh_command_ip(
"nc -l 12345",
&guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
// Wait for the server to be listening
thread::sleep(std::time::Duration::new(5, 0));
// And check the connection is still functional after restore
guest2.ssh_command("nc -vz 172.100.0.1 12345").unwrap();
});
let _ = child1.kill();
let _ = child2.kill();
let output = child1.wait_with_output().unwrap();
child2.wait().unwrap();
cleanup_ovs_dpdk();
handle_child_output(r, &output);
}
fn setup_spdk_nvme(nvme_dir: &std::path::Path) {
cleanup_spdk_nvme();
assert!(exec_host_command_status(&format!(
"mkdir -p {}",
nvme_dir.join("nvme-vfio-user").to_str().unwrap()
))
.success());
assert!(exec_host_command_status(&format!(
"truncate {} -s 128M",
nvme_dir.join("test-disk.raw").to_str().unwrap()
))
.success());
assert!(exec_host_command_status(&format!(
"mkfs.ext4 {}",
nvme_dir.join("test-disk.raw").to_str().unwrap()
))
.success());
// Start the SPDK nvmf_tgt daemon to present NVMe device as a VFIO user device
Command::new("/usr/local/bin/spdk-nvme/nvmf_tgt")
.args(["-i", "0", "-m", "0x1"])
.spawn()
.unwrap();
thread::sleep(std::time::Duration::new(2, 0));
assert!(exec_host_command_status(
"/usr/local/bin/spdk-nvme/rpc.py nvmf_create_transport -t VFIOUSER"
)
.success());
assert!(exec_host_command_status(&format!(
"/usr/local/bin/spdk-nvme/rpc.py bdev_aio_create {} test 512",
nvme_dir.join("test-disk.raw").to_str().unwrap()
))
.success());
assert!(exec_host_command_status(
"/usr/local/bin/spdk-nvme/rpc.py nvmf_create_subsystem nqn.2019-07.io.spdk:cnode -a -s test"
)
.success());
assert!(exec_host_command_status(
"/usr/local/bin/spdk-nvme/rpc.py nvmf_subsystem_add_ns nqn.2019-07.io.spdk:cnode test"
)
.success());
assert!(exec_host_command_status(&format!(
"/usr/local/bin/spdk-nvme/rpc.py nvmf_subsystem_add_listener nqn.2019-07.io.spdk:cnode -t VFIOUSER -a {} -s 0",
nvme_dir.join("nvme-vfio-user").to_str().unwrap()
))
.success());
}
fn cleanup_spdk_nvme() {
exec_host_command_status("pkill -f nvmf_tgt");
}
#[test]
fn test_vfio_user() {
let jammy_image = JAMMY_IMAGE_NAME.to_string();
let jammy = UbuntuDiskConfig::new(jammy_image);
let guest = Guest::new(Box::new(jammy));
let spdk_nvme_dir = guest.tmp_dir.as_path().join("test-vfio-user");
setup_spdk_nvme(spdk_nvme_dir.as_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,shared=on,hugepages=on"])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.args(["--serial", "tty", "--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Hotplug the SPDK-NVMe device to the VM
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-user-device",
Some(&format!(
"socket={},id=vfio_user0",
spdk_nvme_dir
.as_path()
.join("nvme-vfio-user/cntrl")
.to_str()
.unwrap(),
)),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"vfio_user0\",\"bdf\":\"0000:00:05.0\"}"));
thread::sleep(std::time::Duration::new(10, 0));
// Check both if /dev/nvme exists and if the block size is 128M.
assert_eq!(
guest
.ssh_command("lsblk | grep nvme0n1 | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check changes persist after reboot
assert_eq!(
guest.ssh_command("sudo mount /dev/nvme0n1 /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.reboot_linux(0, None);
assert_eq!(
guest.ssh_command("sudo mount /dev/nvme0n1 /mnt").unwrap(),
""
);
assert_eq!(
guest.ssh_command("sudo cat /mnt/test").unwrap().trim(),
"test123"
);
});
cleanup_spdk_nvme();
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
#[cfg(target_arch = "x86_64")]
fn test_vdpa_block() {
// Before trying to run the test, verify the vdpa_sim_blk module is correctly loaded.
if !exec_host_command_status("lsmod | grep vdpa_sim_blk").success() {
return;
}
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
let kernel_path = direct_kernel_boot_path();
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=2"])
.args(["--memory", "size=512M,hugepages=on"])
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.args(["--vdpa", "path=/dev/vhost-vdpa-0,num_queues=1"])
.args(["--platform", "num_pci_segments=2,iommu_segments=1"])
.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 128M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdc | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Check the content of the block device after we wrote to it.
// The vpda-sim-blk should let us read what we previously wrote.
guest
.ssh_command("sudo bash -c 'echo foobar > /dev/vdc'")
.unwrap();
assert_eq!(
guest.ssh_command("sudo head -1 /dev/vdc").unwrap().trim(),
"foobar"
);
// Hotplug an extra vDPA block device behind the vIOMMU
// Add a new vDPA device to the VM
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-vdpa",
Some("id=myvdpa0,path=/dev/vhost-vdpa-1,num_queues=1,pci_segment=1,iommu=on"),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"myvdpa0\",\"bdf\":\"0001:00:01.0\"}"));
thread::sleep(std::time::Duration::new(10, 0));
// Check IOMMU setup
assert!(guest
.does_device_vendor_pair_match("0x1057", "0x1af4")
.unwrap_or_default());
assert_eq!(
guest
.ssh_command("ls /sys/kernel/iommu_groups/0/devices")
.unwrap()
.trim(),
"0001:00:01.0"
);
// Check both if /dev/vdd exists and if the block size is 128M.
assert_eq!(
guest
.ssh_command("lsblk | grep vdd | grep -c 128M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Write some content to the block device we've just plugged.
guest
.ssh_command("sudo bash -c 'echo foobar > /dev/vdd'")
.unwrap();
// Check we can read the content back.
assert_eq!(
guest.ssh_command("sudo head -1 /dev/vdd").unwrap().trim(),
"foobar"
);
// Unplug the device
let cmd_success = remote_command(&api_socket, "remove-device", Some("myvdpa0"));
assert!(cmd_success);
thread::sleep(std::time::Duration::new(10, 0));
// Check /dev/vdd doesn't exist anymore
assert_eq!(
guest
.ssh_command("lsblk | grep -c vdd || true")
.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_vdpa_net() {
// Before trying to run the test, verify the vdpa_sim_net module is correctly loaded.
if !exec_host_command_status("lsmod | grep vdpa_sim_net").success() {
return;
}
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=2"])
.args(["--memory", "size=512M,hugepages=on"])
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.default_net()
.args(["--vdpa", "path=/dev/vhost-vdpa-2,num_queues=2"])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check we can find network interface related to vDPA device
assert_eq!(
guest
.ssh_command("ip -o link | grep -c ens6")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(0),
1
);
guest
.ssh_command("sudo ip addr add 172.16.1.2/24 dev ens6")
.unwrap();
guest.ssh_command("sudo ip link set up dev ens6").unwrap();
// Check there is no packet yet on both TX/RX of the network interface
assert_eq!(
guest
.ssh_command("ip -j -p -s link show ens6 | grep -c '\"packets\": 0'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(0),
2
);
// Send 6 packets with ping command
guest.ssh_command("ping 172.16.1.10 -c 6 || true").unwrap();
// Check we can find 6 packets on both TX/RX of the network interface
assert_eq!(
guest
.ssh_command("ip -j -p -s link show ens6 | grep -c '\"packets\": 6'")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or(0),
2
);
// No need to check for hotplug as we already tested it through
// test_vdpa_block()
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
mod common_sequential {
use crate::*;
#[test]
fn test_memory_mergeable_on() {
test_memory_mergeable(true)
}
}
mod windows {
use crate::*;
use once_cell::sync::Lazy;
static NEXT_DISK_ID: Lazy<Mutex<u8>> = Lazy::new(|| Mutex::new(1));
struct WindowsGuest {
guest: Guest,
auth: PasswordAuth,
}
trait FsType {
const FS_FAT: u8;
const FS_NTFS: u8;
}
impl FsType for WindowsGuest {
const FS_FAT: u8 = 0;
const FS_NTFS: u8 = 1;
}
impl WindowsGuest {
fn new() -> Self {
let disk = WindowsDiskConfig::new(WINDOWS_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(disk));
let auth = PasswordAuth {
username: String::from("administrator"),
password: String::from("Admin123"),
};
WindowsGuest { guest, auth }
}
fn guest(&self) -> &Guest {
&self.guest
}
fn ssh_cmd(&self, cmd: &str) -> String {
ssh_command_ip_with_auth(
cmd,
&self.auth,
&self.guest.network.guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap()
}
fn cpu_count(&self) -> u8 {
self.ssh_cmd("powershell -Command \"(Get-CimInstance win32_computersystem).NumberOfLogicalProcessors\"")
.trim()
.parse::<u8>()
.unwrap_or(0)
}
fn ram_size(&self) -> usize {
self.ssh_cmd("powershell -Command \"(Get-CimInstance win32_computersystem).TotalPhysicalMemory\"")
.trim()
.parse::<usize>()
.unwrap_or(0)
}
fn netdev_count(&self) -> u8 {
self.ssh_cmd("powershell -Command \"netsh int ipv4 show interfaces | Select-String ethernet | Measure-Object -Line | Format-Table -HideTableHeaders\"")
.trim()
.parse::<u8>()
.unwrap_or(0)
}
fn disk_count(&self) -> u8 {
self.ssh_cmd("powershell -Command \"Get-Disk | Measure-Object -Line | Format-Table -HideTableHeaders\"")
.trim()
.parse::<u8>()
.unwrap_or(0)
}
fn reboot(&self) {
let _ = self.ssh_cmd("shutdown /r /t 0");
}
fn shutdown(&self) {
let _ = self.ssh_cmd("shutdown /s /t 0");
}
fn run_dnsmasq(&self) -> std::process::Child {
let listen_address = format!("--listen-address={}", self.guest.network.host_ip);
let dhcp_host = format!(
"--dhcp-host={},{}",
self.guest.network.guest_mac, self.guest.network.guest_ip
);
let dhcp_range = format!(
"--dhcp-range=eth,{},{}",
self.guest.network.guest_ip, self.guest.network.guest_ip
);
Command::new("dnsmasq")
.arg("--no-daemon")
.arg("--log-queries")
.arg(listen_address.as_str())
.arg("--except-interface=lo")
.arg("--bind-dynamic") // Allow listening to host_ip while the interface is not ready yet.
.arg("--conf-file=/dev/null")
.arg(dhcp_host.as_str())
.arg(dhcp_range.as_str())
.spawn()
.unwrap()
}
// TODO Cleanup image file explicitly after test, if there's some space issues.
fn disk_new(&self, fs: u8, sz: usize) -> String {
let mut guard = NEXT_DISK_ID.lock().unwrap();
let id = *guard;
*guard = id + 1;
let img = PathBuf::from(format!("/tmp/test-hotplug-{}.raw", id));
let _ = fs::remove_file(&img);
// Create an image file
let out = Command::new("qemu-img")
.args([
"create",
"-f",
"raw",
img.to_str().unwrap(),
format!("{}m", sz).as_str(),
])
.output()
.expect("qemu-img command failed")
.stdout;
println!("{:?}", out);
// Associate image to a loop device
let out = Command::new("losetup")
.args(["--show", "-f", img.to_str().unwrap()])
.output()
.expect("failed to create loop device")
.stdout;
let _tmp = String::from_utf8_lossy(&out);
let loop_dev = _tmp.trim();
println!("{:?}", out);
// Create a partition table
// echo 'type=7' | sudo sfdisk "${LOOP}"
let mut child = Command::new("sfdisk")
.args([loop_dev])
.stdin(Stdio::piped())
.spawn()
.unwrap();
let stdin = child.stdin.as_mut().expect("failed to open stdin");
stdin
.write_all("type=7".as_bytes())
.expect("failed to write stdin");
let out = child.wait_with_output().expect("sfdisk failed").stdout;
println!("{:?}", out);
// Disengage the loop device
let out = Command::new("losetup")
.args(["-d", loop_dev])
.output()
.expect("loop device not found")
.stdout;
println!("{:?}", out);
// Re-associate loop device pointing to the partition only
let out = Command::new("losetup")
.args([
"--show",
"--offset",
(512 * 2048).to_string().as_str(),
"-f",
img.to_str().unwrap(),
])
.output()
.expect("failed to create loop device")
.stdout;
let _tmp = String::from_utf8_lossy(&out);
let loop_dev = _tmp.trim();
println!("{:?}", out);
// Create filesystem.
let fs_cmd = match fs {
WindowsGuest::FS_FAT => "mkfs.msdos",
WindowsGuest::FS_NTFS => "mkfs.ntfs",
_ => panic!("Unknown filesystem type '{}'", fs),
};
let out = Command::new(fs_cmd)
.args([&loop_dev])
.output()
.unwrap_or_else(|_| panic!("{} failed", fs_cmd))
.stdout;
println!("{:?}", out);
// Disengage the loop device
let out = Command::new("losetup")
.args(["-d", loop_dev])
.output()
.unwrap_or_else(|_| panic!("loop device '{}' not found", loop_dev))
.stdout;
println!("{:?}", out);
img.to_str().unwrap().to_string()
}
fn disks_set_rw(&self) {
let _ = self.ssh_cmd("powershell -Command \"Get-Disk | Where-Object IsOffline -eq $True | Set-Disk -IsReadOnly $False\"");
}
fn disks_online(&self) {
let _ = self.ssh_cmd("powershell -Command \"Get-Disk | Where-Object IsOffline -eq $True | Set-Disk -IsOffline $False\"");
}
fn disk_file_put(&self, fname: &str, data: &str) {
let _ = self.ssh_cmd(&format!(
"powershell -Command \"'{}' | Set-Content -Path {}\"",
data, fname
));
}
fn disk_file_read(&self, fname: &str) -> String {
self.ssh_cmd(&format!(
"powershell -Command \"Get-Content -Path {}\"",
fname
))
}
fn wait_for_boot(&self) -> bool {
let cmd = "dir /b c:\\ | find \"Windows\"";
let tmo_max = 180;
// The timeout increase by n*1+n*2+n*3+..., therefore the initial
// interval must be small.
let tmo_int = 2;
let out = ssh_command_ip_with_auth(
cmd,
&self.auth,
&self.guest.network.guest_ip,
{
let mut ret = 1;
let mut tmo_acc = 0;
loop {
tmo_acc += tmo_int * ret;
if tmo_acc >= tmo_max {
break;
}
ret += 1;
}
ret
},
tmo_int,
)
.unwrap();
if "Windows" == out.trim() {
return true;
}
false
}
}
fn 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 netdev_ctrl_threads_count(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
}
fn disk_ctrl_threads_count(pid: u32) -> u8 {
// ps -T -p 15782 | grep "_disk[0-9]*_q0" | 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("_disk") && s.ends_with("_q0")) as u8); // _disk0_q0, don't care about multiple queues as they're related to the same hdd
n
}
#[test]
fn test_windows_guest() {
let windows_guest = WindowsGuest::new();
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", edk2_path().to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.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);
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
fn test_windows_guest_multiple_queues() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--cpus", "boot=4,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.args([
"--disk",
format!(
"path={},num_queues=4",
windows_guest
.guest()
.disk_config
.disk(DiskType::OperatingSystem)
.unwrap()
)
.as_str(),
])
.args([
"--net",
format!(
"tap=,mac={},ip={},mask=255.255.255.0,num_queues=8",
windows_guest.guest().network.guest_mac,
windows_guest.guest().network.host_ip
)
.as_str(),
])
.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);
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[ignore = "See #4327"]
fn test_windows_guest_snapshot_restore() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket_source = format!("{}.1", temp_api_path(&tmp_dir));
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket_source])
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.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);
let mut child_dnsmasq = windows_guest.run_dnsmasq();
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
let snapshot_dir = temp_snapshot_dir_path(&tmp_dir);
// Pause the VM
assert!(remote_command(&api_socket_source, "pause", None));
// Take a snapshot from the VM
assert!(remote_command(
&api_socket_source,
"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();
let api_socket_restored = format!("{}.2", temp_api_path(&tmp_dir));
// Restore the VM from the snapshot
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket_restored])
.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_restored, "resume", None));
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[cfg(not(target_arch = "aarch64"))]
fn test_windows_guest_cpu_hotplug() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.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()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
let vcpu_num = 2;
// Check the initial number of CPUs the guest sees
assert_eq!(windows_guest.cpu_count(), vcpu_num);
// Check the initial number of vcpu threads in the CH process
assert_eq!(vcpu_threads_count(child.id()), vcpu_num);
let vcpu_num = 6;
// Hotplug some CPUs
resize_command(&api_socket, Some(vcpu_num), None, 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!(windows_guest.cpu_count(), vcpu_num);
// Check the CH process has the correct number of vcpu threads
assert_eq!(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, None);
// Wait to make sure CPUs are removed
thread::sleep(std::time::Duration::new(10, 0));
// Reboot to let Windows catch up
windows_guest.reboot();
// Wait to make sure Windows completely rebooted
thread::sleep(std::time::Duration::new(60, 0));
// Check the guest sees the correct number
assert_eq!(windows_guest.cpu_count(), vcpu_num);
// Check the CH process has the correct number of vcpu threads
assert_eq!(vcpu_threads_count(child.id()), vcpu_num);
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[cfg(not(target_arch = "aarch64"))]
fn test_windows_guest_ram_hotplug() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.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()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
let ram_size = 2 * 1024 * 1024 * 1024;
// Check the initial number of RAM the guest sees
let current_ram_size = windows_guest.ram_size();
// 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, 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!(windows_guest.ram_size(), 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, None);
// Wait to make sure RAM has been added
thread::sleep(std::time::Duration::new(10, 0));
// Reboot to let Windows catch up
windows_guest.reboot();
// Wait to make sure guest completely rebooted
thread::sleep(std::time::Duration::new(60, 0));
// Check the guest sees the correct number
assert_eq!(windows_guest.ram_size(), ram_size - reserved_ram_size);
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_windows_guest_netdev_hotplug() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket])
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
// Initially present network device
let netdev_num = 1;
assert_eq!(windows_guest.netdev_count(), netdev_num);
assert_eq!(netdev_ctrl_threads_count(child.id()), netdev_num);
// Hotplug network device
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-net",
Some(windows_guest.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!(windows_guest.netdev_count(), netdev_num);
assert_eq!(netdev_ctrl_threads_count(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!(windows_guest.netdev_count(), netdev_num);
assert_eq!(netdev_ctrl_threads_count(child.id()), netdev_num);
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[cfg(not(target_arch = "aarch64"))]
fn test_windows_guest_disk_hotplug() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket])
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let disk = windows_guest.disk_new(WindowsGuest::FS_FAT, 100);
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
// Initially present disk device
let disk_num = 1;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
// Hotplug disk device
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-disk",
Some(format!("path={},readonly=off", disk).as_str()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output).contains("\"id\":\"_disk2\""));
thread::sleep(std::time::Duration::new(5, 0));
// Online disk device
windows_guest.disks_set_rw();
windows_guest.disks_online();
// Verify the device is on the system
let disk_num = 2;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
let data = "hello";
let fname = "d:\\world";
windows_guest.disk_file_put(fname, data);
// Unmount disk device
let cmd_success = remote_command(&api_socket, "remove-device", Some("_disk2"));
assert!(cmd_success);
thread::sleep(std::time::Duration::new(5, 0));
// Verify the device has been removed
let disk_num = 1;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
// Remount and check the file exists with the expected contents
let (cmd_success, _cmd_output) = remote_command_w_output(
&api_socket,
"add-disk",
Some(format!("path={},readonly=off", disk).as_str()),
);
assert!(cmd_success);
thread::sleep(std::time::Duration::new(5, 0));
let out = windows_guest.disk_file_read(fname);
assert_eq!(data, out.trim());
// Intentionally no unmount, it'll happen at shutdown.
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[cfg(not(target_arch = "aarch64"))]
fn test_windows_guest_disk_hotplug_multi() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket])
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=2G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
// Predefined data to used at various test stages
let disk_test_data: [[String; 4]; 2] = [
[
"_disk2".to_string(),
windows_guest.disk_new(WindowsGuest::FS_FAT, 123),
"d:\\world".to_string(),
"hello".to_string(),
],
[
"_disk3".to_string(),
windows_guest.disk_new(WindowsGuest::FS_NTFS, 333),
"e:\\hello".to_string(),
"world".to_string(),
],
];
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
// Initially present disk device
let disk_num = 1;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
for it in &disk_test_data {
let disk_id = it[0].as_str();
let disk = it[1].as_str();
// Hotplug disk device
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-disk",
Some(format!("path={},readonly=off", disk).as_str()),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains(format!("\"id\":\"{}\"", disk_id).as_str()));
thread::sleep(std::time::Duration::new(5, 0));
// Online disk devices
windows_guest.disks_set_rw();
windows_guest.disks_online();
}
// Verify the devices are on the system
let disk_num = (disk_test_data.len() + 1) as u8;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
// Put test data
for it in &disk_test_data {
let fname = it[2].as_str();
let data = it[3].as_str();
windows_guest.disk_file_put(fname, data);
}
// Unmount disk devices
for it in &disk_test_data {
let disk_id = it[0].as_str();
let cmd_success = remote_command(&api_socket, "remove-device", Some(disk_id));
assert!(cmd_success);
thread::sleep(std::time::Duration::new(5, 0));
}
// Verify the devices have been removed
let disk_num = 1;
assert_eq!(windows_guest.disk_count(), disk_num);
assert_eq!(disk_ctrl_threads_count(child.id()), disk_num);
// Remount
for it in &disk_test_data {
let disk = it[1].as_str();
let (cmd_success, _cmd_output) = remote_command_w_output(
&api_socket,
"add-disk",
Some(format!("path={},readonly=off", disk).as_str()),
);
assert!(cmd_success);
thread::sleep(std::time::Duration::new(5, 0));
}
// Check the files exists with the expected contents
for it in &disk_test_data {
let fname = it[2].as_str();
let data = it[3].as_str();
let out = windows_guest.disk_file_read(fname);
assert_eq!(data, out.trim());
}
// Intentionally no unmount, it'll happen at shutdown.
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
#[test]
#[cfg(not(feature = "mshv"))]
#[cfg(not(target_arch = "aarch64"))]
fn test_windows_guest_netdev_multi() {
let windows_guest = WindowsGuest::new();
let mut ovmf_path = dirs::home_dir().unwrap();
ovmf_path.push("workloads");
ovmf_path.push(OVMF_NAME);
let tmp_dir = TempDir::new_with_prefix("/tmp/ch").unwrap();
let api_socket = temp_api_path(&tmp_dir);
let mut child = GuestCommand::new(windows_guest.guest())
.args(["--api-socket", &api_socket])
.args(["--cpus", "boot=2,kvm_hyperv=on"])
.args(["--memory", "size=4G"])
.args(["--kernel", ovmf_path.to_str().unwrap()])
.args(["--serial", "tty"])
.args(["--console", "off"])
.default_disks()
// The multi net dev config is borrowed from test_multiple_network_interfaces
.args([
"--net",
windows_guest.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=mytap42,mac=fe:1f:9e:e1:60:f2,ip=192.168.4.1,mask=255.255.255.0",
])
.capture_output()
.spawn()
.unwrap();
let mut child_dnsmasq = windows_guest.run_dnsmasq();
let r = std::panic::catch_unwind(|| {
// Wait to make sure Windows boots up
assert!(windows_guest.wait_for_boot());
let netdev_num = 3;
assert_eq!(windows_guest.netdev_count(), netdev_num);
assert_eq!(netdev_ctrl_threads_count(child.id()), netdev_num);
let tap_count = exec_host_command_output("ip link | grep -c mytap42");
assert_eq!(String::from_utf8_lossy(&tap_count.stdout).trim(), "1");
windows_guest.shutdown();
});
let _ = child.wait_timeout(std::time::Duration::from_secs(60));
let _ = child.kill();
let output = child.wait_with_output().unwrap();
let _ = child_dnsmasq.kill();
let _ = child_dnsmasq.wait();
handle_child_output(r, &output);
}
}
#[cfg(target_arch = "x86_64")]
mod sgx {
use crate::*;
#[test]
fn test_sgx() {
let focal = UbuntuDiskConfig::new(FOCAL_SGX_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(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", "id=epc0,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.
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::*;
#[test]
// The VFIO integration test starts cloud-hypervisor guest with 3 TAP
// backed networking interfaces, bound through a simple bridge on the host.
// So if the nested cloud-hypervisor succeeds in getting a directly
// assigned interface from its cloud-hypervisor host, we should be able to
// ssh into it, and verify that it's running with the right kernel command
// line (We tag the command line from cloud-hypervisor for that purpose).
// The third device is added to validate that hotplug works correctly since
// it is being added to the L2 VM through hotplugging mechanism.
// Also, we pass-through a vitio-blk device to the L2 VM to test the 32-bit
// vfio device support
fn test_vfio() {
setup_vfio_network_interfaces();
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new_from_ip_range(Box::new(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.clone();
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 mut blk_file_path = workload_path;
blk_file_path.push("blk.img");
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(),
format!("path={},iommu=on", blk_file_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(),
8,
);
// Check both if /dev/vdc exists and if the block size is 16M in L2 VM
assert_eq!(
guest
.ssh_command_l2_1("lsblk | grep vdc | grep -c 16M")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
1
);
// Hotplug an extra virtio-net device through L2 VM.
guest
.ssh_command_l1(
"echo 0000:00:09.0 | sudo tee /sys/bus/pci/devices/0000:00:09.0/driver/unbind",
)
.unwrap();
guest
.ssh_command_l1("echo 0000:00:09.0 | sudo tee /sys/bus/pci/drivers/vfio-pci/bind")
.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/0000:00:09.0,id=vfio123",
)
.unwrap();
assert!(vfio_hotplug_output.contains("{\"id\":\"vfio123\",\"bdf\":\"0000:00:08.0\"}"));
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 9 PCI devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
9,
);
// 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 8 devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
8,
);
// 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);
}
fn test_nvidia_card_memory_hotplug(hotplug_method: &str) {
let hirsute = UbuntuDiskConfig::new(HIRSUTE_NVIDIA_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(hirsute));
let api_socket = temp_api_path(&guest.tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=4"])
.args([
"--memory",
format!("size=4G,hotplug_size=4G,hotplug_method={}", hotplug_method).as_str(),
])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.args(["--device", "path=/sys/bus/pci/devices/0000:31:00.0/"])
.args(["--api-socket", &api_socket])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
guest.enable_memory_hotplug();
// Add RAM to the VM
let desired_ram = 6 << 30;
resize_command(&api_socket, None, Some(desired_ram), None, None);
thread::sleep(std::time::Duration::new(30, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
// Check the VFIO device works when RAM is increased to 6GiB
guest.check_nvidia_gpu();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_nvidia_card_memory_hotplug_acpi() {
test_nvidia_card_memory_hotplug("acpi")
}
#[test]
fn test_nvidia_card_memory_hotplug_virtio_mem() {
test_nvidia_card_memory_hotplug("virtio-mem")
}
#[test]
fn test_nvidia_card_pci_hotplug() {
let hirsute = UbuntuDiskConfig::new(HIRSUTE_NVIDIA_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(hirsute));
let api_socket = temp_api_path(&guest.tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=4"])
.args(["--memory", "size=4G"])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.args(["--api-socket", &api_socket])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Hotplug the card to the VM
let (cmd_success, cmd_output) = remote_command_w_output(
&api_socket,
"add-device",
Some("id=vfio0,path=/sys/bus/pci/devices/0000:31:00.0/"),
);
assert!(cmd_success);
assert!(String::from_utf8_lossy(&cmd_output)
.contains("{\"id\":\"vfio0\",\"bdf\":\"0000:00:06.0\"}"));
thread::sleep(std::time::Duration::new(10, 0));
// Check the VFIO device works after hotplug
guest.check_nvidia_gpu();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_nvidia_card_reboot() {
let hirsute = UbuntuDiskConfig::new(HIRSUTE_NVIDIA_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(hirsute));
let api_socket = temp_api_path(&guest.tmp_dir);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", "boot=4"])
.args(["--memory", "size=4G"])
.args(["--kernel", fw_path(FwType::RustHypervisorFirmware).as_str()])
.args(["--device", "path=/sys/bus/pci/devices/0000:31:00.0/"])
.args(["--api-socket", &api_socket])
.default_disks()
.default_net()
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Check the VFIO device works after boot
guest.check_nvidia_gpu();
guest.reboot_linux(0, None);
// Check the VFIO device works after reboot
guest.check_nvidia_gpu();
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
}
mod live_migration {
use crate::*;
fn start_live_migration(
migration_socket: &str,
src_api_socket: &str,
dest_api_socket: &str,
local: bool,
) -> bool {
// Start to receive migration from the destintion VM
let mut receive_migration = Command::new(clh_command("ch-remote"))
.args([
&format!("--api-socket={}", dest_api_socket),
"receive-migration",
&format! {"unix:{}", migration_socket},
])
.stderr(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.unwrap();
// Give it '1s' to make sure the 'migration_socket' file is properly created
thread::sleep(std::time::Duration::new(1, 0));
// Start to send migration from the source VM
let mut args = [
format!("--api-socket={}", &src_api_socket),
"send-migration".to_string(),
format! {"unix:{}", migration_socket},
]
.to_vec();
if local {
args.insert(2, "--local".to_string());
}
let mut send_migration = Command::new(clh_command("ch-remote"))
.args(&args)
.stderr(Stdio::piped())
.stdout(Stdio::piped())
.spawn()
.unwrap();
// The 'send-migration' command should be executed successfully within the given timeout
let send_success = if let Some(status) = send_migration
.wait_timeout(std::time::Duration::from_secs(30))
.unwrap()
{
status.success()
} else {
false
};
if !send_success {
let _ = send_migration.kill();
let output = send_migration.wait_with_output().unwrap();
eprintln!("\n\n==== Start 'send_migration' output ====\n\n---stdout---\n{}\n\n---stderr---\n{}\n\n==== End 'send_migration' output ====\n\n",
String::from_utf8_lossy(&output.stdout), String::from_utf8_lossy(&output.stderr));
}
// The 'receive-migration' command should be executed successfully within the given timeout
let receive_success = if let Some(status) = receive_migration
.wait_timeout(std::time::Duration::from_secs(30))
.unwrap()
{
status.success()
} else {
false
};
if !receive_success {
let _ = receive_migration.kill();
let output = receive_migration.wait_with_output().unwrap();
eprintln!("\n\n==== Start 'receive_migration' output ====\n\n---stdout---\n{}\n\n---stderr---\n{}\n\n==== End 'receive_migration' output ====\n\n",
String::from_utf8_lossy(&output.stdout), String::from_utf8_lossy(&output.stderr));
}
send_success && receive_success
}
fn print_and_panic(src_vm: Child, dest_vm: Child, ovs_vm: Option<Child>, message: &str) -> ! {
let mut src_vm = src_vm;
let mut dest_vm = dest_vm;
let _ = src_vm.kill();
let src_output = src_vm.wait_with_output().unwrap();
eprintln!(
"\n\n==== Start 'source_vm' stdout ====\n\n{}\n\n==== End 'source_vm' stdout ====",
String::from_utf8_lossy(&src_output.stdout)
);
eprintln!(
"\n\n==== Start 'source_vm' stderr ====\n\n{}\n\n==== End 'source_vm' stderr ====",
String::from_utf8_lossy(&src_output.stderr)
);
let _ = dest_vm.kill();
let dest_output = dest_vm.wait_with_output().unwrap();
eprintln!(
"\n\n==== Start 'destination_vm' stdout ====\n\n{}\n\n==== End 'destination_vm' stdout ====",
String::from_utf8_lossy(&dest_output.stdout)
);
eprintln!(
"\n\n==== Start 'destination_vm' stderr ====\n\n{}\n\n==== End 'destination_vm' stderr ====",
String::from_utf8_lossy(&dest_output.stderr)
);
if let Some(ovs_vm) = ovs_vm {
let mut ovs_vm = ovs_vm;
let _ = ovs_vm.kill();
let ovs_output = ovs_vm.wait_with_output().unwrap();
eprintln!(
"\n\n==== Start 'ovs_vm' stdout ====\n\n{}\n\n==== End 'ovs_vm' stdout ====",
String::from_utf8_lossy(&ovs_output.stdout)
);
eprintln!(
"\n\n==== Start 'ovs_vm' stderr ====\n\n{}\n\n==== End 'ovs_vm' stderr ====",
String::from_utf8_lossy(&ovs_output.stderr)
);
cleanup_ovs_dpdk();
}
panic!("Test failed: {}", message)
}
// This test exercises the local live-migration between two Cloud Hypervisor VMs on the
// same host. It ensures the following behaviors:
// 1. The source VM is up and functional (including various virtio-devices are working properly);
// 2. The 'send-migration' and 'receive-migration' command finished successfully;
// 3. The source VM terminated gracefully after live migration;
// 4. The destination VM is functional (including various virtio-devices are working properly) after
// live migration;
// Note: This test does not use vsock as we can't create two identical vsock on the same host.
fn _test_live_migration(upgrade_test: bool, local: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let console_text = String::from("On a branch floating down river a cricket, singing.");
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 memory_param: &[&str] = if local {
&["--memory", "size=4G,shared=on"]
} else {
&["--memory", "size=4G"]
};
let boot_vcpus = 2;
let max_vcpus = 4;
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 pmem_path = String::from("/dev/pmem0");
// Start the source VM
let src_vm_path = if !upgrade_test {
clh_command("cloud-hypervisor")
} else {
cloud_hypervisor_release_path()
};
let src_api_socket = temp_api_path(&guest.tmp_dir);
let mut src_vm_cmd = GuestCommand::new_with_binary_path(&guest, &src_vm_path);
src_vm_cmd
.args([
"--cpus",
format!("boot={},max={}", boot_vcpus, max_vcpus).as_str(),
])
.args(memory_param)
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--net", net_params.as_str()])
.args(["--api-socket", &src_api_socket])
.args([
"--pmem",
format!("file={}", pmem_temp_file.as_path().to_str().unwrap(),).as_str(),
]);
let mut src_child = src_vm_cmd.capture_output().spawn().unwrap();
// Start the destination VM
let mut dest_api_socket = temp_api_path(&guest.tmp_dir);
dest_api_socket.push_str(".dest");
let mut dest_child = GuestCommand::new(&guest)
.args(["--api-socket", &dest_api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Make sure the source VM is functaionl
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
// Check the guest RAM
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
// Check the guest virtio-devices, e.g. block, rng, console, and net
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// x86_64: Following what's done in the `test_snapshot_restore`, we need
// to make sure that removing and adding back the virtio-net device does
// not break the live-migration support for virtio-pci.
#[cfg(target_arch = "x86_64")]
{
assert!(remote_command(
&src_api_socket,
"remove-device",
Some(net_id),
));
thread::sleep(std::time::Duration::new(10, 0));
// Plug the virtio-net device again
assert!(remote_command(
&src_api_socket,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
}
// Start the live-migration
let migration_socket = String::from(
guest
.tmp_dir
.as_path()
.join("live-migration.sock")
.to_str()
.unwrap(),
);
assert!(
start_live_migration(&migration_socket, &src_api_socket, &dest_api_socket, local),
"Unsuccessful command: 'send-migration' or 'receive-migration'."
);
});
// Check and report any errors occured during the live-migration
if r.is_err() {
print_and_panic(
src_child,
dest_child,
None,
"Error occured during live-migration",
);
}
// Check the source vm has been terminated successful (give it '3s' to settle)
thread::sleep(std::time::Duration::new(3, 0));
if !src_child.try_wait().unwrap().map_or(false, |s| s.success()) {
print_and_panic(
src_child,
dest_child,
None,
"source VM was not terminated successfully.",
);
};
// Post live-migration check to make sure the destination VM is funcational
let r = std::panic::catch_unwind(|| {
// Perform same checks to validate VM has been properly migrated
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
});
// Clean-up the destination VM and make sure it terminated correctly
let _ = dest_child.kill();
let dest_output = dest_child.wait_with_output().unwrap();
handle_child_output(r, &dest_output);
// Check the destination VM has the expected 'concole_text' from its output
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&dest_output.stdout).contains(&console_text));
});
handle_child_output(r, &dest_output);
}
fn _test_live_migration_balloon(upgrade_test: bool, local: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let console_text = String::from("On a branch floating down river a cricket, singing.");
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 memory_param: &[&str] = if local {
&[
"--memory",
"size=4G,hotplug_method=virtio-mem,hotplug_size=8G,shared=on",
"--balloon",
"size=0",
]
} else {
&[
"--memory",
"size=4G,hotplug_method=virtio-mem,hotplug_size=8G",
"--balloon",
"size=0",
]
};
let boot_vcpus = 2;
let max_vcpus = 4;
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 pmem_path = String::from("/dev/pmem0");
// Start the source VM
let src_vm_path = if !upgrade_test {
clh_command("cloud-hypervisor")
} else {
cloud_hypervisor_release_path()
};
let src_api_socket = temp_api_path(&guest.tmp_dir);
let mut src_vm_cmd = GuestCommand::new_with_binary_path(&guest, &src_vm_path);
src_vm_cmd
.args([
"--cpus",
format!("boot={},max={}", boot_vcpus, max_vcpus).as_str(),
])
.args(memory_param)
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--net", net_params.as_str()])
.args(["--api-socket", &src_api_socket])
.args([
"--pmem",
format!("file={}", pmem_temp_file.as_path().to_str().unwrap(),).as_str(),
]);
let mut src_child = src_vm_cmd.capture_output().spawn().unwrap();
// Start the destination VM
let mut dest_api_socket = temp_api_path(&guest.tmp_dir);
dest_api_socket.push_str(".dest");
let mut dest_child = GuestCommand::new(&guest)
.args(["--api-socket", &dest_api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Make sure the source VM is functaionl
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
// Check the guest RAM
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
// Increase the guest RAM
resize_command(&src_api_socket, None, Some(6 << 30), None, None);
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
// Use balloon to remove RAM from the VM
resize_command(&src_api_socket, None, None, Some(1 << 30), None);
thread::sleep(std::time::Duration::new(5, 0));
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
// Check the guest virtio-devices, e.g. block, rng, console, and net
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// x86_64: Following what's done in the `test_snapshot_restore`, we need
// to make sure that removing and adding back the virtio-net device does
// not break the live-migration support for virtio-pci.
#[cfg(target_arch = "x86_64")]
{
assert!(remote_command(
&src_api_socket,
"remove-device",
Some(net_id),
));
thread::sleep(std::time::Duration::new(10, 0));
// Plug the virtio-net device again
assert!(remote_command(
&src_api_socket,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
}
// Start the live-migration
let migration_socket = String::from(
guest
.tmp_dir
.as_path()
.join("live-migration.sock")
.to_str()
.unwrap(),
);
assert!(
start_live_migration(&migration_socket, &src_api_socket, &dest_api_socket, local),
"Unsuccessful command: 'send-migration' or 'receive-migration'."
);
});
// Check and report any errors occured during the live-migration
if r.is_err() {
print_and_panic(
src_child,
dest_child,
None,
"Error occured during live-migration",
);
}
// Check the source vm has been terminated successful (give it '3s' to settle)
thread::sleep(std::time::Duration::new(3, 0));
if !src_child.try_wait().unwrap().map_or(false, |s| s.success()) {
print_and_panic(
src_child,
dest_child,
None,
"source VM was not terminated successfully.",
);
};
// Post live-migration check to make sure the destination VM is funcational
let r = std::panic::catch_unwind(|| {
// Perform same checks to validate VM has been properly migrated
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// Perform checks on guest RAM using balloon
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
// Deflate balloon to restore entire RAM to the VM
resize_command(&dest_api_socket, None, None, Some(0), None);
thread::sleep(std::time::Duration::new(5, 0));
assert!(guest.get_total_memory().unwrap_or_default() > 5_760_000);
// Decrease guest RAM with virtio-mem
resize_command(&dest_api_socket, None, Some(5 << 30), None, None);
thread::sleep(std::time::Duration::new(5, 0));
let total_memory = guest.get_total_memory().unwrap_or_default();
assert!(total_memory > 4_800_000);
assert!(total_memory < 5_760_000);
});
// Clean-up the destination VM and make sure it terminated correctly
let _ = dest_child.kill();
let dest_output = dest_child.wait_with_output().unwrap();
handle_child_output(r, &dest_output);
// Check the destination VM has the expected 'concole_text' from its output
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&dest_output.stdout).contains(&console_text));
});
handle_child_output(r, &dest_output);
}
fn _test_live_migration_numa(upgrade_test: bool, local: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let console_text = String::from("On a branch floating down river a cricket, singing.");
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 memory_param: &[&str] = if local {
&[
"--memory",
"size=0,hotplug_method=virtio-mem,shared=on",
"--memory-zone",
"id=mem0,size=1G,hotplug_size=4G,shared=on",
"id=mem1,size=1G,hotplug_size=4G,shared=on",
"id=mem2,size=2G,hotplug_size=4G,shared=on",
"--numa",
"guest_numa_id=0,cpus=[0-2,9],distances=[1@15,2@20],memory_zones=mem0",
"guest_numa_id=1,cpus=[3-4,6-8],distances=[0@20,2@25],memory_zones=mem1",
"guest_numa_id=2,cpus=[5,10-11],distances=[0@25,1@30],memory_zones=mem2",
]
} else {
&[
"--memory",
"size=0,hotplug_method=virtio-mem",
"--memory-zone",
"id=mem0,size=1G,hotplug_size=4G",
"id=mem1,size=1G,hotplug_size=4G",
"id=mem2,size=2G,hotplug_size=4G",
"--numa",
"guest_numa_id=0,cpus=[0-2,9],distances=[1@15,2@20],memory_zones=mem0",
"guest_numa_id=1,cpus=[3-4,6-8],distances=[0@20,2@25],memory_zones=mem1",
"guest_numa_id=2,cpus=[5,10-11],distances=[0@25,1@30],memory_zones=mem2",
]
};
let boot_vcpus = 6;
let max_vcpus = 12;
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 pmem_path = String::from("/dev/pmem0");
// Start the source VM
let src_vm_path = if !upgrade_test {
clh_command("cloud-hypervisor")
} else {
cloud_hypervisor_release_path()
};
let src_api_socket = temp_api_path(&guest.tmp_dir);
let mut src_vm_cmd = GuestCommand::new_with_binary_path(&guest, &src_vm_path);
src_vm_cmd
.args([
"--cpus",
format!("boot={},max={}", boot_vcpus, max_vcpus).as_str(),
])
.args(memory_param)
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--net", net_params.as_str()])
.args(["--api-socket", &src_api_socket])
.args([
"--pmem",
format!("file={}", pmem_temp_file.as_path().to_str().unwrap(),).as_str(),
]);
let mut src_child = src_vm_cmd.capture_output().spawn().unwrap();
// Start the destination VM
let mut dest_api_socket = temp_api_path(&guest.tmp_dir);
dest_api_socket.push_str(".dest");
let mut dest_child = GuestCommand::new(&guest)
.args(["--api-socket", &dest_api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Make sure the source VM is functaionl
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
// Check the guest RAM
assert!(guest.get_total_memory().unwrap_or_default() > 2_880_000);
// Check the guest virtio-devices, e.g. block, rng, console, and net
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// Check the NUMA parameters are applied correctly and resize
// each zone to test the case where we migrate a VM with the
// virtio-mem regions being used.
{
guest.check_numa_common(
Some(&[960_000, 960_000, 1_920_000]),
Some(&[vec![0, 1, 2], vec![3, 4], vec![5]]),
Some(&["10 15 20", "20 10 25", "25 30 10"]),
);
// AArch64 currently does not support hotplug, and therefore we only
// test hotplug-related function on x86_64 here.
#[cfg(target_arch = "x86_64")]
{
guest.enable_memory_hotplug();
// Resize every memory zone and check each associated NUMA node
// has been assigned the right amount of memory.
resize_zone_command(&src_api_socket, "mem0", "2G");
resize_zone_command(&src_api_socket, "mem1", "2G");
resize_zone_command(&src_api_socket, "mem2", "3G");
thread::sleep(std::time::Duration::new(5, 0));
guest.check_numa_common(Some(&[1_920_000, 1_920_000, 1_920_000]), None, None);
}
}
// x86_64: Following what's done in the `test_snapshot_restore`, we need
// to make sure that removing and adding back the virtio-net device does
// not break the live-migration support for virtio-pci.
#[cfg(target_arch = "x86_64")]
{
assert!(remote_command(
&src_api_socket,
"remove-device",
Some(net_id),
));
thread::sleep(std::time::Duration::new(10, 0));
// Plug the virtio-net device again
assert!(remote_command(
&src_api_socket,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
}
// Start the live-migration
let migration_socket = String::from(
guest
.tmp_dir
.as_path()
.join("live-migration.sock")
.to_str()
.unwrap(),
);
assert!(
start_live_migration(&migration_socket, &src_api_socket, &dest_api_socket, local),
"Unsuccessful command: 'send-migration' or 'receive-migration'."
);
});
// Check and report any errors occured during the live-migration
if r.is_err() {
print_and_panic(
src_child,
dest_child,
None,
"Error occured during live-migration",
);
}
// Check the source vm has been terminated successful (give it '3s' to settle)
thread::sleep(std::time::Duration::new(3, 0));
if !src_child.try_wait().unwrap().map_or(false, |s| s.success()) {
print_and_panic(
src_child,
dest_child,
None,
"source VM was not terminated successfully.",
);
};
// Post live-migration check to make sure the destination VM is funcational
let r = std::panic::catch_unwind(|| {
// Perform same checks to validate VM has been properly migrated
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
#[cfg(target_arch = "x86_64")]
assert!(guest.get_total_memory().unwrap_or_default() > 6_720_000);
#[cfg(target_arch = "aarch64")]
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// Perform NUMA related checks
{
#[cfg(target_arch = "aarch64")]
{
guest.check_numa_common(
Some(&[960_000, 960_000, 1_920_000]),
Some(&[vec![0, 1, 2], vec![3, 4], vec![5]]),
Some(&["10 15 20", "20 10 25", "25 30 10"]),
);
}
// AArch64 currently does not support hotplug, and therefore we only
// test hotplug-related function on x86_64 here.
#[cfg(target_arch = "x86_64")]
{
guest.check_numa_common(
Some(&[1_920_000, 1_920_000, 2_880_000]),
Some(&[vec![0, 1, 2], vec![3, 4], vec![5]]),
Some(&["10 15 20", "20 10 25", "25 30 10"]),
);
guest.enable_memory_hotplug();
// Resize every memory zone and check each associated NUMA node
// has been assigned the right amount of memory.
resize_zone_command(&dest_api_socket, "mem0", "4G");
resize_zone_command(&dest_api_socket, "mem1", "4G");
resize_zone_command(&dest_api_socket, "mem2", "4G");
// Resize to the maximum amount of CPUs and check each NUMA
// node has been assigned the right CPUs set.
resize_command(&dest_api_socket, Some(max_vcpus), None, None, None);
thread::sleep(std::time::Duration::new(5, 0));
guest.check_numa_common(
Some(&[3_840_000, 3_840_000, 3_840_000]),
Some(&[vec![0, 1, 2, 9], vec![3, 4, 6, 7, 8], vec![5, 10, 11]]),
None,
);
}
}
});
// Clean-up the destination VM and make sure it terminated correctly
let _ = dest_child.kill();
let dest_output = dest_child.wait_with_output().unwrap();
handle_child_output(r, &dest_output);
// Check the destination VM has the expected 'concole_text' from its output
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&dest_output.stdout).contains(&console_text));
});
handle_child_output(r, &dest_output);
}
fn _test_live_migration_watchdog(upgrade_test: bool, local: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let kernel_path = direct_kernel_boot_path();
let console_text = String::from("On a branch floating down river a cricket, singing.");
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 memory_param: &[&str] = if local {
&["--memory", "size=4G,shared=on"]
} else {
&["--memory", "size=4G"]
};
let boot_vcpus = 2;
let max_vcpus = 4;
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 pmem_path = String::from("/dev/pmem0");
// Start the source VM
let src_vm_path = if !upgrade_test {
clh_command("cloud-hypervisor")
} else {
cloud_hypervisor_release_path()
};
let src_api_socket = temp_api_path(&guest.tmp_dir);
let mut src_vm_cmd = GuestCommand::new_with_binary_path(&guest, &src_vm_path);
src_vm_cmd
.args([
"--cpus",
format!("boot={},max={}", boot_vcpus, max_vcpus).as_str(),
])
.args(memory_param)
.args(["--kernel", kernel_path.to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--net", net_params.as_str()])
.args(["--api-socket", &src_api_socket])
.args([
"--pmem",
format!("file={}", pmem_temp_file.as_path().to_str().unwrap(),).as_str(),
])
.args(["--watchdog"]);
let mut src_child = src_vm_cmd.capture_output().spawn().unwrap();
// Start the destination VM
let mut dest_api_socket = temp_api_path(&guest.tmp_dir);
dest_api_socket.push_str(".dest");
let mut dest_child = GuestCommand::new(&guest)
.args(["--api-socket", &dest_api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
// Make sure the source VM is functaionl
// Check the number of vCPUs
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
// Check the guest RAM
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
// Check the guest virtio-devices, e.g. block, rng, console, and net
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// x86_64: Following what's done in the `test_snapshot_restore`, we need
// to make sure that removing and adding back the virtio-net device does
// not break the live-migration support for virtio-pci.
#[cfg(target_arch = "x86_64")]
{
assert!(remote_command(
&src_api_socket,
"remove-device",
Some(net_id),
));
thread::sleep(std::time::Duration::new(10, 0));
// Plug the virtio-net device again
assert!(remote_command(
&src_api_socket,
"add-net",
Some(net_params.as_str()),
));
thread::sleep(std::time::Duration::new(10, 0));
}
// Enable watchdog and ensure its functional
let mut expected_reboot_count = 1;
// Enable the watchdog with a 15s timeout
enable_guest_watchdog(&guest, 15);
// Reboot and check that systemd has activated the watchdog
guest.ssh_command("sudo reboot").unwrap();
guest.wait_vm_boot(None).unwrap();
expected_reboot_count += 1;
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
assert_eq!(
guest
.ssh_command("sudo journalctl | grep -c -- \"Watchdog started\"")
.unwrap()
.trim()
.parse::<u32>()
.unwrap_or_default(),
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
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
// Start the live-migration
let migration_socket = String::from(
guest
.tmp_dir
.as_path()
.join("live-migration.sock")
.to_str()
.unwrap(),
);
assert!(
start_live_migration(&migration_socket, &src_api_socket, &dest_api_socket, local),
"Unsuccessful command: 'send-migration' or 'receive-migration'."
);
});
// Check and report any errors occured during the live-migration
if r.is_err() {
print_and_panic(
src_child,
dest_child,
None,
"Error occured during live-migration",
);
}
// Check the source vm has been terminated successful (give it '3s' to settle)
thread::sleep(std::time::Duration::new(3, 0));
if !src_child.try_wait().unwrap().map_or(false, |s| s.success()) {
print_and_panic(
src_child,
dest_child,
None,
"source VM was not terminated successfully.",
);
};
// Post live-migration check to make sure the destination VM is funcational
let r = std::panic::catch_unwind(|| {
// Perform same checks to validate VM has been properly migrated
assert_eq!(guest.get_cpu_count().unwrap_or_default(), boot_vcpus);
assert!(guest.get_total_memory().unwrap_or_default() > 3_840_000);
guest.check_devices_common(None, Some(&console_text), Some(&pmem_path));
// Perform checks on watchdog
let mut expected_reboot_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
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
// 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 a reboot is triggerred by the watchdog
expected_reboot_count += 1;
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
#[cfg(target_arch = "x86_64")]
{
// Now pause the VM and remain offline for 30s
assert!(remote_command(&dest_api_socket, "pause", None));
thread::sleep(std::time::Duration::new(30, 0));
assert!(remote_command(&dest_api_socket, "resume", None));
// Check no reboot
assert_eq!(get_reboot_count(&guest), expected_reboot_count);
}
});
// Clean-up the destination VM and make sure it terminated correctly
let _ = dest_child.kill();
let dest_output = dest_child.wait_with_output().unwrap();
handle_child_output(r, &dest_output);
// Check the destination VM has the expected 'concole_text' from its output
let r = std::panic::catch_unwind(|| {
assert!(String::from_utf8_lossy(&dest_output.stdout).contains(&console_text));
});
handle_child_output(r, &dest_output);
}
fn _test_live_migration_ovs_dpdk(upgrade_test: bool, local: bool) {
let ovs_focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let ovs_guest = Guest::new(Box::new(ovs_focal));
let migration_focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let migration_guest = Guest::new(Box::new(migration_focal));
let src_api_socket = temp_api_path(&migration_guest.tmp_dir);
// Start two VMs that are connected through ovs-dpdk and one of the VMs is the source VM for live-migration
let (mut ovs_child, mut src_child) =
setup_ovs_dpdk_guests(&ovs_guest, &migration_guest, &src_api_socket, upgrade_test);
// Start the destination VM
let mut dest_api_socket = temp_api_path(&migration_guest.tmp_dir);
dest_api_socket.push_str(".dest");
let mut dest_child = GuestCommand::new(&migration_guest)
.args(["--api-socket", &dest_api_socket])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
// Give it '1s' to make sure the 'dest_api_socket' file is properly created
thread::sleep(std::time::Duration::new(1, 0));
// Start the live-migration
let migration_socket = String::from(
migration_guest
.tmp_dir
.as_path()
.join("live-migration.sock")
.to_str()
.unwrap(),
);
assert!(
start_live_migration(&migration_socket, &src_api_socket, &dest_api_socket, local),
"Unsuccessful command: 'send-migration' or 'receive-migration'."
);
});
// Check and report any errors occured during the live-migration
if r.is_err() {
print_and_panic(
src_child,
dest_child,
Some(ovs_child),
"Error occured during live-migration",
);
}
// Check the source vm has been terminated successful (give it '3s' to settle)
thread::sleep(std::time::Duration::new(3, 0));
if !src_child.try_wait().unwrap().map_or(false, |s| s.success()) {
print_and_panic(
src_child,
dest_child,
Some(ovs_child),
"source VM was not terminated successfully.",
);
};
// Post live-migration check to make sure the destination VM is funcational
let r = std::panic::catch_unwind(|| {
// Perform same checks to validate VM has been properly migrated
// Spawn a new netcat listener in the OVS VM
let guest_ip = ovs_guest.network.guest_ip.clone();
thread::spawn(move || {
ssh_command_ip(
"nc -l 12345",
&guest_ip,
DEFAULT_SSH_RETRIES,
DEFAULT_SSH_TIMEOUT,
)
.unwrap();
});
// Wait for the server to be listening
thread::sleep(std::time::Duration::new(5, 0));
// And check the connection is still functional after live-migration
migration_guest
.ssh_command("nc -vz 172.100.0.1 12345")
.unwrap();
});
// Clean-up the destination VM and OVS VM, and make sure they terminated correctly
let _ = dest_child.kill();
let _ = ovs_child.kill();
let dest_output = dest_child.wait_with_output().unwrap();
let ovs_output = ovs_child.wait_with_output().unwrap();
cleanup_ovs_dpdk();
handle_child_output(r, &dest_output);
handle_child_output(Ok(()), &ovs_output);
}
mod live_migration_parallel {
use super::*;
#[test]
fn test_live_migration_basic() {
_test_live_migration(false, false)
}
#[test]
fn test_live_migration_local() {
_test_live_migration(false, true)
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_live_migration_numa() {
_test_live_migration_numa(false, false)
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_live_migration_numa_local() {
_test_live_migration_numa(false, true)
}
#[test]
fn test_live_migration_watchdog() {
_test_live_migration_watchdog(false, false)
}
#[test]
fn test_live_migration_watchdog_local() {
_test_live_migration_watchdog(false, true)
}
#[test]
fn test_live_migration_balloon() {
_test_live_migration_balloon(false, false)
}
#[test]
fn test_live_migration_balloon_local() {
_test_live_migration_balloon(false, true)
}
#[test]
fn test_live_upgrade_basic() {
_test_live_migration(true, false)
}
#[test]
fn test_live_upgrade_local() {
_test_live_migration(true, true)
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_live_upgrade_numa() {
_test_live_migration_numa(true, false)
}
#[test]
#[cfg(not(feature = "mshv"))]
fn test_live_upgrade_numa_local() {
_test_live_migration_numa(true, true)
}
#[test]
fn test_live_upgrade_watchdog() {
_test_live_migration_watchdog(true, false)
}
#[test]
fn test_live_upgrade_watchdog_local() {
_test_live_migration_watchdog(true, true)
}
#[test]
fn test_live_upgrade_balloon() {
_test_live_migration_balloon(true, false)
}
#[test]
fn test_live_upgrade_balloon_local() {
_test_live_migration_balloon(true, true)
}
}
mod live_migration_sequential {
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
use super::*;
// Require to run ovs-dpdk tests sequentially because they rely on the same ovs-dpdk setup
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
fn test_live_migration_ovs_dpdk() {
_test_live_migration_ovs_dpdk(false, false);
}
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
fn test_live_migration_ovs_dpdk_local() {
_test_live_migration_ovs_dpdk(false, true);
}
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
fn test_live_upgrade_ovs_dpdk() {
_test_live_migration_ovs_dpdk(true, false);
}
#[test]
#[cfg(target_arch = "x86_64")]
#[cfg(not(feature = "mshv"))]
fn test_live_upgrade_ovs_dpdk_local() {
_test_live_migration_ovs_dpdk(true, true);
}
}
}
#[cfg(target_arch = "aarch64")]
mod aarch64_acpi {
use crate::*;
#[test]
fn test_simple_launch_acpi() {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
vec![Box::new(focal)].drain(..).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", edk2_path().to_str().unwrap()])
.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!(guest.get_total_memory().unwrap_or_default() > 400_000);
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_guest_numa_nodes_acpi() {
_test_guest_numa_nodes(true);
}
#[test]
fn test_cpu_topology_421_acpi() {
test_cpu_topology(4, 2, 1, true);
}
#[test]
fn test_cpu_topology_142_acpi() {
test_cpu_topology(1, 4, 2, true);
}
#[test]
fn test_cpu_topology_262_acpi() {
test_cpu_topology(2, 6, 2, true);
}
#[test]
fn test_power_button_acpi() {
_test_power_button(true);
}
#[test]
fn test_virtio_iommu() {
_test_virtio_iommu(true)
}
}
mod rate_limiter {
use super::*;
// Check if the 'measured' rate is within the expected 'difference' (in percentage)
// compared to given 'limit' rate.
fn check_rate_limit(measured: f64, limit: f64, difference: f64) -> bool {
let upper_limit = limit * (1_f64 + difference);
let lower_limit = limit * (1_f64 - difference);
if measured > lower_limit && measured < upper_limit {
return true;
}
eprintln!(
"\n\n==== check_rate_limit failed! ====\n\nmeasured={}, , lower_limit={}, upper_limit={}\n\n",
measured, lower_limit, upper_limit
);
false
}
fn _test_rate_limiter_net(rx: bool) {
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let test_timeout = 10;
let num_queues = 2;
let queue_size = 256;
let bw_size = 10485760_u64; // bytes
let bw_refill_time = 100; // ms
let limit_bps = (bw_size * 8 * 1000) as f64 / bw_refill_time as f64;
let net_params = format!(
"tap=,mac={},ip={},mask=255.255.255.0,num_queues={},queue_size={},bw_size={},bw_refill_time={}",
guest.network.guest_mac,
guest.network.host_ip,
num_queues,
queue_size,
bw_size,
bw_refill_time,
);
let mut child = GuestCommand::new(&guest)
.args(["--cpus", &format!("boot={}", num_queues / 2)])
.args(["--memory", "size=4G"])
.args(["--kernel", direct_kernel_boot_path().to_str().unwrap()])
.args(["--cmdline", DIRECT_KERNEL_BOOT_CMDLINE])
.default_disks()
.args(["--net", net_params.as_str()])
.capture_output()
.spawn()
.unwrap();
let r = std::panic::catch_unwind(|| {
guest.wait_vm_boot(None).unwrap();
let measured_bps =
measure_virtio_net_throughput(test_timeout, num_queues / 2, &guest, rx).unwrap();
assert!(check_rate_limit(measured_bps, limit_bps, 0.1));
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_rate_limiter_net_rx() {
_test_rate_limiter_net(true);
}
#[test]
fn test_rate_limiter_net_tx() {
_test_rate_limiter_net(false);
}
fn _test_rate_limiter_block(bandwidth: bool) {
let test_timeout = 10;
let num_queues = 1;
let fio_ops = FioOps::RandRW;
let bw_size = if bandwidth {
10485760_u64 // bytes
} else {
100_u64 // I/O
};
let bw_refill_time = 100; // ms
let limit_rate = (bw_size * 1000) as f64 / bw_refill_time as f64;
let focal = UbuntuDiskConfig::new(FOCAL_IMAGE_NAME.to_string());
let guest = Guest::new(Box::new(focal));
let api_socket = temp_api_path(&guest.tmp_dir);
let test_img_dir = TempDir::new_with_prefix("/var/tmp/ch").unwrap();
let blk_rate_limiter_test_img =
String::from(test_img_dir.as_path().join("blk.img").to_str().unwrap());
// Create the test block image
assert!(exec_host_command_output(&format!(
"dd if=/dev/zero of={} bs=1M count=1024",
blk_rate_limiter_test_img
))
.status
.success());
let test_blk_params = if bandwidth {
format!(
"path={},bw_size={},bw_refill_time={}",
blk_rate_limiter_test_img, bw_size, bw_refill_time
)
} else {
format!(
"path={},ops_size={},ops_refill_time={}",
blk_rate_limiter_test_img, bw_size, bw_refill_time
)
};
let mut child = GuestCommand::new(&guest)
.args(["--cpus", &format!("boot={}", num_queues)])
.args(["--memory", "size=4G"])
.args(["--kernel", direct_kernel_boot_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(),
test_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();
let fio_command = format!(
"sudo fio --filename=/dev/vdc --name=test --output-format=json \
--direct=1 --bs=4k --ioengine=io_uring --iodepth=64 \
--rw={} --runtime={} --numjobs={}",
fio_ops, test_timeout, num_queues
);
let output = guest.ssh_command(&fio_command).unwrap();
// Parse fio output
let measured_rate = if bandwidth {
parse_fio_output(&output, &fio_ops, num_queues).unwrap()
} else {
parse_fio_output_iops(&output, &fio_ops, num_queues).unwrap()
};
assert!(check_rate_limit(measured_rate, limit_rate, 0.1));
});
let _ = child.kill();
let output = child.wait_with_output().unwrap();
handle_child_output(r, &output);
}
#[test]
fn test_rate_limiter_block_bandwidth() {
_test_rate_limiter_block(true)
}
#[test]
fn test_rate_limiter_block_iops() {
_test_rate_limiter_block(false)
}
}