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Diffstat (limited to 'docs/plat/qemu.rst')
| -rw-r--r-- | docs/plat/qemu.rst | 98 |
1 files changed, 92 insertions, 6 deletions
diff --git a/docs/plat/qemu.rst b/docs/plat/qemu.rst index 88196bc93..66b82473c 100644 --- a/docs/plat/qemu.rst +++ b/docs/plat/qemu.rst @@ -20,12 +20,49 @@ provided as it's generated by QEMU. Current limitations: - Only cold boot is supported -- No build instructions for QEMU\_EFI.fd and rootfs-arm64.cpio.gz -- No instructions for how to load a BL32 (Secure Payload) -``QEMU_EFI.fd`` can be dowloaded from +Getting non-TF images +--------------------- + +``QEMU_EFI.fd`` can be downloaded from http://snapshots.linaro.org/components/kernel/leg-virt-tianocore-edk2-upstream/latest/QEMU-KERNEL-AARCH64/RELEASE_GCC5/QEMU_EFI.fd +or, can be built as follows: + +.. code:: shell + + git clone https://github.com/tianocore/edk2.git + cd edk2 + git submodule update --init + make -C BaseTools + source edksetup.sh + export GCC5_AARCH64_PREFIX=aarch64-linux-gnu- + build -a AARCH64 -t GCC5 -p ArmVirtPkg/ArmVirtQemuKernel.dsc + +```` + +Then, you will get ``Build/ArmVirtQemuKernel-AARCH64/DEBUG_GCC5/FV/QEMU_EFI.fd`` + +Please note you do not need to use GCC 5 in spite of the environment variable +``GCC5_AARCH64_PREFIX`` + +The rootfs can be built by using Buildroot as follows: + +.. code:: shell + + git clone git://git.buildroot.net/buildroot.git + cd buildroot + make qemu_aarch64_virt_defconfig + utils/config -e BR2_TARGET_ROOTFS_CPIO + utils/config -e BR2_TARGET_ROOTFS_CPIO_GZIP + make olddefconfig + make + +Then, you will get ``output/images/rootfs.cpio.gz``. + +Booting via semi-hosting option +------------------------------- + Boot binaries, except BL1, are primarily loaded via semi-hosting so all binaries has to reside in the same directory as QEMU is started from. This is conveniently achieved with symlinks the local names as: @@ -41,12 +78,61 @@ To build: make CROSS_COMPILE=aarch64-none-elf- PLAT=qemu -To start (QEMU v4.1.0): +To start (QEMU v5.0.0): .. code:: shell qemu-system-aarch64 -nographic -machine virt,secure=on -cpu cortex-a57 \ -kernel Image \ - -append "console=ttyAMA0,38400 keep_bootcon root=/dev/vda2" \ - -initrd rootfs-arm64.cpio.gz -smp 2 -m 1024 -bios bl1.bin \ + -append "console=ttyAMA0,38400 keep_bootcon" \ + -initrd rootfs.cpio.gz -smp 2 -m 1024 -bios bl1.bin \ -d unimp -semihosting-config enable,target=native + +Booting via flash based firmwares +--------------------------------- + +Boot firmwares are loaded via secure FLASH0 device so ``bl1.bin`` and +``fip.bin`` should be concatenated to create a ``flash.bin`` that is flashed +onto secure FLASH0. + +- ``bl32.bin`` -> BL32 (``tee-header_v2.bin``) +- ``bl32_extra1.bin`` -> BL32 Extra1 (``tee-pager_v2.bin``) +- ``bl32_extra2.bin`` -> BL32 Extra2 (``tee-pageable_v2.bin``) +- ``bl33.bin`` -> BL33 (``QEMU_EFI.fd``) +- ``Image`` -> linux/arch/arm64/boot/Image + +To build: + +.. code:: shell + + make CROSS_COMPILE=aarch64-linux-gnu- PLAT=qemu BL32=bl32.bin \ + BL32_EXTRA1=bl32_extra1.bin BL32_EXTRA2=bl32_extra2.bin \ + BL33=bl33.bin BL32_RAM_LOCATION=tdram SPD=opteed all fip + +To build with TBBR enabled, BL31 and BL32 encrypted with test key: + +.. code:: shell + + make CROSS_COMPILE=aarch64-linux-gnu- PLAT=qemu BL32=bl32.bin \ + BL32_EXTRA1=bl32_extra1.bin BL32_EXTRA2=bl32_extra2.bin \ + BL33=bl33.bin BL32_RAM_LOCATION=tdram SPD=opteed all fip \ + MBEDTLS_DIR=<path-to-mbedtls-repo> TRUSTED_BOARD_BOOT=1 \ + GENERATE_COT=1 DECRYPTION_SUPPORT=aes_gcm FW_ENC_STATUS=0 \ + ENCRYPT_BL31=1 ENCRYPT_BL32=1 + +To build flash.bin: + +.. code:: shell + + dd if=build/qemu/release/bl1.bin of=flash.bin bs=4096 conv=notrunc + dd if=build/qemu/release/fip.bin of=flash.bin seek=64 bs=4096 conv=notrunc + +To start (QEMU v5.0.0): + +.. code:: shell + + qemu-system-aarch64 -nographic -machine virt,secure=on -cpu cortex-a57 \ + -kernel Image -no-acpi \ + -append 'console=ttyAMA0,38400 keep_bootcon' \ + -initrd rootfs.cpio.gz -smp 2 -m 1024 -bios flash.bin \ + -d unimp |