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tests: Extend 'test_vfio' with block device passthrough

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Fixes: #2822

Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit is contained in:
Bo Chen 2021-07-12 19:10:04 -07:00 committed by Sebastien Boeuf
parent 73cc443213
commit 1365388f0b
2 changed files with 33 additions and 13 deletions
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9
test_data/cloud-init/ubuntu/user-data
View File

@ -36,15 +36,18 @@ write_files:
#!/bin/bash
mount /dev/vdc /mnt
bash -c "echo 1af4 1042 > /sys/bus/pci/drivers/vfio-pci/new_id"
bash -c "echo 0000:00:05.0 > /sys/bus/pci/devices/0000\:00\:05.0/driver/unbind"
bash -c "echo 0000:00:05.0 > /sys/bus/pci/drivers/vfio-pci/bind"
bash -c "echo 1af4 1041 > /sys/bus/pci/drivers/vfio-pci/new_id"
bash -c "echo 0000:00:06.0 > /sys/bus/pci/devices/0000\:00\:06.0/driver/unbind"
bash -c "echo 0000:00:06.0 > /sys/bus/pci/drivers/vfio-pci/bind"
bash -c "echo 0000:00:07.0 > /sys/bus/pci/devices/0000\:00\:07.0/driver/unbind"
bash -c "echo 0000:00:07.0 > /sys/bus/pci/drivers/vfio-pci/bind"
bash -c "echo 0000:00:08.0 > /sys/bus/pci/devices/0000\:00\:08.0/driver/unbind"
bash -c "echo 0000:00:08.0 > /sys/bus/pci/drivers/vfio-pci/bind"
# 1G ram requires 512 pages
echo 512 | sudo tee /proc/sys/vm/nr_hugepages
sudo chmod a+rwX /dev/hugepages
/mnt/cloud-hypervisor --kernel /mnt/vmlinux --cmdline "console=hvc0 reboot=k panic=1 nomodules root=/dev/vda1 VFIOTAG" --disk path=/mnt/focal-server-cloudimg-amd64-custom-20210609-0.qcow2 path=/mnt/cloudinit.img --cpus boot=1 --memory size=512M,hotplug_size=1G,hugepages=on --device path=/sys/bus/pci/devices/0000:00:06.0/ path=/sys/bus/pci/devices/0000:00:07.0/ --api-socket /tmp/ch_api.sock
/mnt/cloud-hypervisor --kernel /mnt/vmlinux --cmdline "console=hvc0 reboot=k panic=1 nomodules root=/dev/vda1 VFIOTAG" --disk path=/mnt/focal-server-cloudimg-amd64-custom-20210609-0.qcow2 path=/mnt/cloudinit.img --cpus boot=1 --memory size=512M,hotplug_size=1G,hugepages=on --device path=/sys/bus/pci/devices/0000:00:05.0/ path=/sys/bus/pci/devices/0000:00:07.0/ path=/sys/bus/pci/devices/0000:00:08.0/ --api-socket /tmp/ch_api.sock
-
path: /etc/systemd/system/notify-booted.service

37
tests/integration.rs
View File

@ -3238,6 +3238,8 @@ mod tests {
// 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();
@ -3263,7 +3265,7 @@ mod tests {
)
.expect("copying of cloud-init disk failed");
let mut vfio_disk_path = workload_path;
let mut vfio_disk_path = workload_path.clone();
vfio_disk_path.push("vfio.img");
// Create the vfio disk image
@ -3279,6 +3281,9 @@ mod tests {
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";
@ -3301,6 +3306,7 @@ mod tests {
)
.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",
@ -3374,27 +3380,38 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or_default(),
7,
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 0000:00:08.0 | sudo tee /sys/bus/pci/devices/0000:00:08.0/driver/unbind",
"echo 0000:00:09.0 | sudo tee /sys/bus/pci/devices/0000:00:09.0/driver/unbind",
).unwrap();
guest
.ssh_command_l1(
"echo 0000:00:08.0 | sudo tee /sys/bus/pci/drivers/vfio-pci/bind",
"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/0000:00:08.0,id=vfio123",
add-device path=/sys/bus/pci/devices/0000:00:09.0,id=vfio123",
)
.unwrap();
assert!(
vfio_hotplug_output.contains("{\"id\":\"vfio123\",\"bdf\":\"0000:00:07.0\"}")
vfio_hotplug_output.contains("{\"id\":\"vfio123\",\"bdf\":\"0000:00:08.0\"}")
);
thread::sleep(std::time::Duration::new(10, 0));
@ -3414,7 +3431,7 @@ mod tests {
// Check the amount of PCI devices appearing in L2 VM.
// There should be one more device than before, raising the count
// up to 8 PCI devices.
// up to 9 PCI devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
@ -3422,7 +3439,7 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or_default(),
8,
9,
);
// Let's now verify that we can correctly remove the virtio-net
@ -3438,7 +3455,7 @@ mod tests {
thread::sleep(std::time::Duration::new(10, 0));
// Check the amount of PCI devices appearing in L2 VM is back down
// to 7 devices.
// to 8 devices.
assert_eq!(
guest
.ssh_command_l2_1("ls /sys/bus/pci/devices | wc -l")
@ -3446,7 +3463,7 @@ mod tests {
.trim()
.parse::<u32>()
.unwrap_or_default(),
7,
8,
);
// Perform memory hotplug in L2 and validate the memory is showing