[v4,7/7] configs/qemu_aarch64_tz_virt: AArch64 emulation with TrustZone services

Message ID 1548845249-28201-7-git-send-email-etienne.carriere@linaro.org
State New
Headers show
  • [v4,1/7] boot/optee-os: new package
Related show

Commit Message

Etienne Carriere Jan. 30, 2019, 10:47 a.m.
This change introduces a Qemu board for an AArch64 target executing
with OP-TEE secure world services.

The target Linux based normal world embeds the standard minimal
filesystem with OP-TEE non-secure components embedded files from
OP-TEE client, test, examples and benchmark packages.

The Linux custom configuration is dumped from the qemu/aarch64-virt board
with few added fragments: OP-TEE driver and 9p for virtual filesystem to
ease file manipulation and exchanges through Qemu virtfs support.

The standard way for booting OP-TEE with a non-secure world companion
use the Arm Trusted Firmware-A as bootloader. OP-TEE OS provides the
BL32 image and U-boot the BL33 image. The proposed board enables OP-TEE
and U-boot build for this. However package boot/arm-trusted-firmware
needs few changes to build OP-TEE compliant TF-A images.

Therefore the proposed board allows one to build the images but not
yet to run the target with the built Qemu host tool.

Signed-off-by: Etienne Carriere <etienne.carriere@linaro.org>

Changes v3 -> v4
  - No change.

Changes v2 -> v3
  - New change to introduce a board that at least builds Aarch64 OP-TEE.

 board/qemu/aarch64-tz-virt/linux.config  | 63 ++++++++++++++++++++++++++++++++
 board/qemu/aarch64-tz-virt/readme.txt    | 11 ++++++
 board/qemu/aarch64-tz-virt/u-boot.config |  3 ++
 configs/qemu_aarch64_tz_virt_defconfig   | 47 ++++++++++++++++++++++++
 4 files changed, 124 insertions(+)
 create mode 100644 board/qemu/aarch64-tz-virt/linux.config
 create mode 100644 board/qemu/aarch64-tz-virt/readme.txt
 create mode 100644 board/qemu/aarch64-tz-virt/u-boot.config
 create mode 100644 configs/qemu_aarch64_tz_virt_defconfig


diff --git a/board/qemu/aarch64-tz-virt/linux.config b/board/qemu/aarch64-tz-virt/linux.config
new file mode 100644
index 0000000..49b7ac6
--- /dev/null
+++ b/board/qemu/aarch64-tz-virt/linux.config
@@ -0,0 +1,63 @@ 
+### Enable OP-TEE
+### Enable 9P VFS
diff --git a/board/qemu/aarch64-tz-virt/readme.txt b/board/qemu/aarch64-tz-virt/readme.txt
new file mode 100644
index 0000000..ec91d2e
--- /dev/null
+++ b/board/qemu/aarch64-tz-virt/readme.txt
@@ -0,0 +1,11 @@ 
+Board qemu_aarch64_tz_virt builds a Qemu Armv8-A target with
+OP-TEE running in the TrustZone secure wolrd setup and a Linux based
+OS running in the non-secure wolrd.
+This setup is usually booted with the Arm Trsuted Firmware-A (TF-A from
+package boot/arm-trusted-firmware). However the current Buildroot package
+needs few changes to build TF-A for OP-TEE support.
+Until BR arm-trusted-firmware is updated this board allows one to only
+build the secure and non-secure boot images if not the BIOS for the Qemu
diff --git a/board/qemu/aarch64-tz-virt/u-boot.config b/board/qemu/aarch64-tz-virt/u-boot.config
new file mode 100644
index 0000000..5588008
--- /dev/null
+++ b/board/qemu/aarch64-tz-virt/u-boot.config
@@ -0,0 +1,3 @@ 
+CONFIG_BOOTCOMMAND="fdt addr ${fdt_addr} && fdt resize 1000 && smhload zImage ${kernel_addr_r} && smhload rootfs.cpio.gz ${ramdisk_addr_r} ramdisk_addr_end &&  setenv bootargs console=ttyAMA0,115200 earlyprintk=serial,ttyAMA0,115200 && fdt chosen ${ramdisk_addr_r} ${ramdisk_addr_end} && bootz ${kernel_addr_r} - ${fdt_addr}"
diff --git a/configs/qemu_aarch64_tz_virt_defconfig b/configs/qemu_aarch64_tz_virt_defconfig
new file mode 100644
index 0000000..9286d15
--- /dev/null
+++ b/configs/qemu_aarch64_tz_virt_defconfig
@@ -0,0 +1,47 @@ 
+# Architecture
+# System
+# Filesystem
+# BR2_TARGET_ROOTFS_TAR is not set
+# Linux headers same as kernel, a 4.16 series
+# Kernel
+# TF-A for booting OP-TEE secure and uboot/linux non secure
+# POSTPONED: depends on boot/arm-trusted-firmware support for Armv7-A
+# OP-TEE components
+# Need a non-secure bootloader for the dear Linux kernel: U-boot? UEFI?
+# Qemu emulator for the Arm target