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#!/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 <pierrick.bouvier@linaro.org>
#
# 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
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):
self.set_machine('virt')
self.vm.set_console()
self.require_accelerator('tcg')
stack_path_tar_gz = self.ASSET_RME_STACK_VIRT.fetch()
self.archive_extract(stack_path_tar_gz, format="tar")
rme_stack = self.scratch_file('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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