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docs: qemu: Add instructions to boot using FIP image 

Update qemu documentation with instructions to boot using FIP image.
Also, add option to build TF-A with TBBR and firmware encryption
enabled.

Signed-off-by: Sumit Garg <sumit.garg@linaro.org>
Change-Id: Ib3af485d413cd595352034c82c2268d7f4cb120a
This commit is contained in:
Sumit Garg 2019-11-15 20:16:58 +05:30
parent f97062a5c7
commit 4ebbea9592
1 changed files with 52 additions and 1 deletions
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53
docs/plat/qemu.rst
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@ -21,11 +21,13 @@ 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
http://snapshots.linaro.org/components/kernel/leg-virt-tianocore-edk2-upstream/latest/QEMU-KERNEL-AARCH64/RELEASE_GCC5/QEMU_EFI.fd
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:
@ -50,3 +52,52 @@ To start (QEMU v4.1.0):
-append "console=ttyAMA0,38400 keep_bootcon root=/dev/vda2" \
-initrd rootfs-arm64.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 v2.6.0):
.. code:: shell
qemu-system-aarch64 -nographic -machine virt,secure=on -cpu cortex-a57 \
-kernel Image -no-acpi \
-append 'console=ttyAMA0,38400 keep_bootcon root=/dev/vda2' \
-initrd rootfs-arm64.cpio.gz -smp 2 -m 1024 -bios flash.bin \
-d unimp