support/testing: add optee-os runtime test

Cc: Etienne Carriere <etienne.carriere@foss.st.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1754,6 +1754,8 @@ F:	package/riscv-isa-sim/
 F:	package/tinycompress/
 F:	package/z3/
 F:	package/zynaddsubfx/
+F:	support/testing/tests/boot/test_optee_os.py
+F:	support/testing/tests/boot/test_optee_os/
 F:	support/testing/tests/package/sample_python_distro.py
 F:	support/testing/tests/package/sample_python_gnupg.py
 F:	support/testing/tests/package/sample_python_hwdata.py

support/testing/tests/boot/test_optee_os.py

@@ -0,0 +1,74 @@
+import os
+
+import infra.basetest
+
+
+class TestOptee(infra.basetest.BRTest):
+    # A custom configuration is needed to enable OP-TEE support in the
+    # Kernel. This config is inspired from:
+    # configs/qemu_arm_vexpress_tz_defconfig
+    uboot_fragment = \
+        infra.filepath("tests/boot/test_optee_os/u-boot.fragment")
+    config = \
+        f"""
+        BR2_arm=y
+        BR2_cortex_a15=y
+        BR2_ARM_FPU_VFPV3D16=y
+        BR2_TOOLCHAIN_EXTERNAL=y
+        BR2_TARGET_GENERIC_GETTY_PORT="ttyAMA0"
+        BR2_ROOTFS_POST_BUILD_SCRIPT="board/qemu/arm-vexpress-tz/post-build.sh"
+        BR2_LINUX_KERNEL=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+        BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.1.73"
+        BR2_LINUX_KERNEL_DEFCONFIG="vexpress"
+        BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/qemu/arm-vexpress-tz/linux.fragment"
+        BR2_PACKAGE_OPTEE_EXAMPLES=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        BR2_TARGET_ROOTFS_CPIO_GZIP=y
+        BR2_TARGET_ROOTFS_CPIO_UIMAGE=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE=y
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION=y
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_CUSTOM_VERSION_VALUE="v2.9"
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_PLATFORM="qemu"
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_FIP=y
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_BL32_OPTEE=y
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_UBOOT_AS_BL33=y
+        BR2_TARGET_ARM_TRUSTED_FIRMWARE_ADDITIONAL_VARIABLES="BL32_RAM_LOCATION=tdram"
+        BR2_TARGET_OPTEE_OS=y
+        BR2_TARGET_OPTEE_OS_NEEDS_DTC=y
+        BR2_TARGET_OPTEE_OS_PLATFORM="vexpress-qemu_virt"
+        BR2_TARGET_UBOOT=y
+        BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
+        BR2_TARGET_UBOOT_CUSTOM_VERSION=y
+        BR2_TARGET_UBOOT_CUSTOM_VERSION_VALUE="2022.04"
+        BR2_TARGET_UBOOT_BOARD_DEFCONFIG="qemu_arm"
+        BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES="{uboot_fragment}"
+        """
+
+    def test_run(self):
+        # There is no Kernel nor rootfs image here. They will be
+        # loaded by TFTP through the emulated network interface in
+        # u-boot.
+        bios = os.path.join(self.builddir, "images", "flash.bin")
+        tftp_dir = os.path.join(self.builddir, "images")
+        self.emulator.boot(arch="arm",
+                           options=["-M", "virt,secure=on",
+                                    "-d", "unimp",
+                                    "-cpu", "cortex-a15",
+                                    "-m", "1024M",
+                                    "-netdev", f"user,id=vmnic,tftp={tftp_dir}",
+                                    "-device", "virtio-net-device,netdev=vmnic",
+                                    "-bios", bios])
+        self.emulator.login()
+
+        # Check the Kernel has OP-TEE messages
+        self.assertRunOk("dmesg | grep -F optee:")
+
+        # Check we have OP-TEE devices
+        self.assertRunOk("ls -al /dev/tee*")
+
+        # Run some OP-TEE examples
+        examples = ["aes", "hello_world", "hotp", "random", "secure_storage"]
+        for ex in examples:
+            self.assertRunOk(f"optee_example_{ex}")

support/testing/tests/boot/test_optee_os/u-boot.fragment

@@ -0,0 +1,8 @@
+CONFIG_SYS_TEXT_BASE=0x60000000
+CONFIG_BOOTCOMMAND="setenv ipaddr 10.0.2.15 && setenv serverip 10.0.2.2 && tftp ${kernel_addr_r} zImage && tftp ${ramdisk_addr_r} rootfs.cpio.uboot && setenv bootargs console=ttyAMA0,115200 earlyprintk=serial,ttyAMA0,115200 && bootz ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr}"
+CONFIG_SEMIHOSTING=y
+# Drop flash accesses
+CONFIG_ENV_IS_IN_FLASH=n
+CONFIG_MTD=n
+CONFIG_MTD_NOR_FLASH=n
+CONFIG_ENV_IS_NOWHERE=y