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tests/functional/aarch64: add tests for FEAT_RME
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This boot an OP-TEE environment, and launch a nested guest VM inside it
using the Realms feature. We do it for virt and sbsa-ref platforms.

Signed-off-by: Pierrick Bouvier <[email protected]>

-----

v2:
- move test to its own file
- add sbsa test
- check output of `cca-workload-attestation report`

v3:
- build and run test with cca-v4 images
- factorize nested guest test between both tests
- remove accel tcg option as it is the default when running tests
Note: It's a long test and there is a work in progress to understand why
debug build is so slow (x12 vs optimized).

v4:
- use pauth-impdef=on to speed up build time execution (x2.5 faster)
- increase timeout value

Signed-off-by: Pierrick Bouvier <[email protected]>
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pbo-linaro committed Nov 25, 2024
1 parent d381592 commit 6b42489
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4 changes: 4 additions & 0 deletions tests/functional/meson.build
Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@ endif
test_timeouts = {
'aarch64_aspeed' : 600,
'aarch64_raspi4' : 480,
'aarch64_rme_virt' : 1200,
'aarch64_rme_sbsaref' : 1200,
'aarch64_sbsaref_alpine' : 720,
'aarch64_sbsaref_freebsd' : 720,
'aarch64_tuxrun' : 240,
Expand Down Expand Up @@ -52,6 +54,8 @@ tests_aarch64_system_thorough = [
'aarch64_aspeed',
'aarch64_raspi3',
'aarch64_raspi4',
'aarch64_rme_virt',
'aarch64_rme_sbsaref',
'aarch64_sbsaref',
'aarch64_sbsaref_alpine',
'aarch64_sbsaref_freebsd',
Expand Down
70 changes: 70 additions & 0 deletions tests/functional/test_aarch64_rme_sbsaref.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,70 @@
#!/usr/bin/env python3
#
# Functional test that boots a Realms environment on sbsa-ref machine and a
# nested guest VM using it.
#
# Copyright (c) 2024 Linaro Ltd.
#
# Author: Pierrick Bouvier <[email protected]>
#
# SPDX-License-Identifier: GPL-2.0-or-later

import time
import os
import logging

from qemu_test import QemuSystemTest, Asset
from qemu_test import exec_command, wait_for_console_pattern
from qemu_test import exec_command_and_wait_for_pattern
from qemu_test.utils import archive_extract
from test_aarch64_rme_virt import test_realms_guest

class Aarch64RMESbsaRefMachine(QemuSystemTest):

# Stack is built with OP-TEE build environment from those instructions:
# https://linaro.atlassian.net/wiki/spaces/QEMU/pages/29051027459/
# https://github.com/pbo-linaro/qemu-rme-stack
ASSET_RME_STACK_SBSA = Asset(
('https://fileserver.linaro.org/s/KJyeBxL82mz2r7F/'
'download/rme-stack-op-tee-4.2.0-cca-v4-sbsa.tar.gz'),
'dd9ab28ec869bdf3b5376116cb3689103b43433fd5c4bca0f4a8d8b3c104999e')

# This tests the FEAT_RME cpu implementation, by booting a VM supporting it,
# and launching a nested VM using it.
def test_aarch64_rme_sbsaref(self):
stack_path_tar_gz = self.ASSET_RME_STACK_SBSA.fetch()
archive_extract(stack_path_tar_gz, self.workdir)

self.set_machine('sbsa-ref')
self.vm.set_console()
self.require_accelerator('tcg')

rme_stack = os.path.join(self.workdir,
'rme-stack-op-tee-4.2.0-cca-v4-sbsa')
pflash0 = os.path.join(rme_stack, 'images', 'SBSA_FLASH0.fd')
pflash1 = os.path.join(rme_stack, 'images', 'SBSA_FLASH1.fd')
virtual = os.path.join(rme_stack, 'images', 'disks', 'virtual')
drive = os.path.join(rme_stack, 'out-br', 'images', 'rootfs.ext4')

self.vm.add_args('-cpu', 'max,x-rme=on,pauth-impdef=on')
self.vm.add_args('-m', '2G')
self.vm.add_args('-M', 'sbsa-ref')
self.vm.add_args('-drive', f'file={pflash0},format=raw,if=pflash')
self.vm.add_args('-drive', f'file={pflash1},format=raw,if=pflash')
self.vm.add_args('-drive', f'file=fat:rw:{virtual},format=raw')
self.vm.add_args('-drive', f'format=raw,if=none,file={drive},id=hd0')
self.vm.add_args('-device', 'virtio-blk-pci,drive=hd0')
self.vm.add_args('-device', 'virtio-9p-pci,fsdev=shr0,mount_tag=shr0')
self.vm.add_args('-fsdev', f'local,security_model=none,path={rme_stack},id=shr0')
self.vm.add_args('-device', 'virtio-net-pci,netdev=net0')
self.vm.add_args('-netdev', 'user,id=net0')

self.vm.launch()
# Wait for host VM boot to complete.
wait_for_console_pattern(self, 'Welcome to Buildroot')
exec_command_and_wait_for_pattern(self, 'root', '#')

test_realms_guest(self)

if __name__ == '__main__':
QemuSystemTest.main()
100 changes: 100 additions & 0 deletions tests/functional/test_aarch64_rme_virt.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,100 @@
#!/usr/bin/env python3
#
# Functional test that boots a Realms environment on virt machine and a nested
# guest VM using it.
#
# Copyright (c) 2024 Linaro Ltd.
#
# Author: Pierrick Bouvier <[email protected]>
#
# SPDX-License-Identifier: GPL-2.0-or-later

import time
import os
import logging

from qemu_test import QemuSystemTest, Asset
from qemu_test import exec_command, wait_for_console_pattern
from qemu_test import exec_command_and_wait_for_pattern
from qemu_test.utils import archive_extract

def test_realms_guest(test_rme_instance):

# Boot the (nested) guest VM
exec_command(test_rme_instance,
'qemu-system-aarch64 -M virt,gic-version=3 '
'-cpu host -enable-kvm -m 512M '
'-M confidential-guest-support=rme0 '
'-object rme-guest,id=rme0 '
'-device virtio-net-pci,netdev=net0,romfile= '
'-netdev user,id=net0 '
'-kernel /mnt/out/bin/Image '
'-initrd /mnt/out-br/images/rootfs.cpio '
'-serial stdio')
# Detect Realm activation during (nested) guest boot.
wait_for_console_pattern(test_rme_instance,
'SMC_RMI_REALM_ACTIVATE')
# Wait for (nested) guest boot to complete.
wait_for_console_pattern(test_rme_instance,
'Welcome to Buildroot')
exec_command_and_wait_for_pattern(test_rme_instance, 'root', '#')
# query (nested) guest cca report
exec_command(test_rme_instance, 'cca-workload-attestation report')
wait_for_console_pattern(test_rme_instance,
'"cca-platform-hash-algo-id": "sha-256"')
wait_for_console_pattern(test_rme_instance,
'"cca-realm-hash-algo-id": "sha-512"')
wait_for_console_pattern(test_rme_instance,
'"cca-realm-public-key-hash-algo-id": "sha-256"')

class Aarch64RMEVirtMachine(QemuSystemTest):

# Stack is built with OP-TEE build environment from those instructions:
# https://linaro.atlassian.net/wiki/spaces/QEMU/pages/29051027459/
# https://github.com/pbo-linaro/qemu-rme-stack
ASSET_RME_STACK_VIRT = Asset(
('https://fileserver.linaro.org/s/iaRsNDJp2CXHMSJ/'
'download/rme-stack-op-tee-4.2.0-cca-v4-qemu_v8.tar.gz'),
'1851adc232b094384d8b879b9a2cfff07ef3d6205032b85e9b3a4a9ae6b0b7ad')

# This tests the FEAT_RME cpu implementation, by booting a VM supporting it,
# and launching a nested VM using it.
def test_aarch64_rme_virt(self):
stack_path_tar_gz = self.ASSET_RME_STACK_VIRT.fetch()
archive_extract(stack_path_tar_gz, self.workdir)

self.set_machine('virt')
self.vm.set_console()
self.require_accelerator('tcg')

rme_stack = os.path.join(self.workdir,
'rme-stack-op-tee-4.2.0-cca-v4-qemu_v8')
kernel = os.path.join(rme_stack, 'out', 'bin', 'Image')
bios = os.path.join(rme_stack, 'out', 'bin', 'flash.bin')
drive = os.path.join(rme_stack, 'out-br', 'images', 'rootfs.ext4')

self.vm.add_args('-cpu', 'max,x-rme=on,pauth-impdef=on')
self.vm.add_args('-m', '2G')
self.vm.add_args('-M', 'virt,acpi=off,'
'virtualization=on,'
'secure=on,'
'gic-version=3')
self.vm.add_args('-bios', bios)
self.vm.add_args('-kernel', kernel)
self.vm.add_args('-drive', f'format=raw,if=none,file={drive},id=hd0')
self.vm.add_args('-device', 'virtio-blk-pci,drive=hd0')
self.vm.add_args('-device', 'virtio-9p-device,fsdev=shr0,mount_tag=shr0')
self.vm.add_args('-fsdev', f'local,security_model=none,path={rme_stack},id=shr0')
self.vm.add_args('-device', 'virtio-net-pci,netdev=net0')
self.vm.add_args('-netdev', 'user,id=net0')
self.vm.add_args('-append', 'root=/dev/vda')

self.vm.launch()
# Wait for host VM boot to complete.
wait_for_console_pattern(self, 'Welcome to Buildroot')
exec_command_and_wait_for_pattern(self, 'root', '#')

test_realms_guest(self)

if __name__ == '__main__':
QemuSystemTest.main()

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