[PATCH 15/20] tests/functional/aarch64: add tests for FEAT_RME

[Alex Bennée]

From: Pierrick Bouvier <pierrick.bouvier@linaro.org>

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 <pierrick.bouvier@linaro.org>

-----

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 <pierrick.bouvier@linaro.org>
Message-Id: <20241203213629.2482806-1-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/functional/meson.build                 |   4 +
 tests/functional/test_aarch64_rme_sbsaref.py |  70 +++++++++++++
 tests/functional/test_aarch64_rme_virt.py    | 100 +++++++++++++++++++
 3 files changed, 174 insertions(+)
 create mode 100755 tests/functional/test_aarch64_rme_sbsaref.py
 create mode 100755 tests/functional/test_aarch64_rme_virt.py

diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index 0a76bd9954..4e207c53d5 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -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,
@@ -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',
diff --git a/tests/functional/test_aarch64_rme_sbsaref.py 
b/tests/functional/test_aarch64_rme_sbsaref.py
new file mode 100755
index 0000000000..c136b5ce17
--- /dev/null
+++ b/tests/functional/test_aarch64_rme_sbsaref.py
@@ -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 <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
+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()
diff --git a/tests/functional/test_aarch64_rme_virt.py 
b/tests/functional/test_aarch64_rme_virt.py
new file mode 100755
index 0000000000..39e4e4adb5
--- /dev/null
+++ b/tests/functional/test_aarch64_rme_virt.py
@@ -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 <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
+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()
-- 
2.39.5