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boards: fvp_base_revc_2xaemv8a: permit running Zephyr at EL1NS

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It may be needed to run Zephyr at EL1NS level with `CONFIG_ARMV8_A_NS`
In order to run at EL1NS, you'll need a proper Firmware loaded in the
FVP model to run Zephyr at non-secure EL3.

The ARM TF-A for FVP can used to run Zephyr as preloaded BL33.

This adds the necessary cmake scripts to load the TF-A binaries and
load Zephyr as preloaded BL33 payload.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
This commit is contained in:
Neil Armstrong 2021-08-11 11:25:01 +02:00 • committed by Christopher Friedt
commit 538968a773
2 changed files with 49 additions and 1 deletions
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23
boards/arm64/fvp_base_revc_2xaemv8a/doc/index.rst
View file

@ -71,6 +71,29 @@ To run with FVP, ARMFVP_BIN_PATH must be set before running:
e.g. export ARMFVP_BIN_PATH=<path/to/fvp/dir>
Running Zephyr at EL1NS
***********************
In order to run Zephyr as EL1NS with ``CONFIG_ARMV8_A_NS``, you'll need a proper
Trusted Firmware loaded in the FVP model.
The ARM TF-A for FVP can be used to run Zephyr as preloaded BL33 payload.
Checkout and Build the TF-A:
.. code-block:: console
git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git --depth 1
cd trusted-firmware-a/
make PLAT=fvp PRELOADED_BL33_BASE="0x88000000" all fip
then export the ``ARMFVP_BL1_FILE` and ``ARMFVP_FIP_FILE`` environment variables:
.. code-block:: console
export ARMFVP_BL1_FILE=<path/to/tfa-a/build/fvp/release/bl1.bin>
export ARMFVP_FIP_FILE=<path/to/tfa-a/build/fvp/release/fip.bin>
Debugging
=========

27
cmake/emu/armfvp.cmake
View file

@ -10,11 +10,36 @@ find_program(
NAMES ${ARMFVP_BIN_NAME}
)
if(CONFIG_ARMV8_A_NS)
foreach(filetype BL1 FIP)
if ((NOT DEFINED ARMFVP_${filetype}_FILE) AND (EXISTS "$ENV{ARMFVP_${filetype}_FILE}"))
set(ARMFVP_${filetype}_FILE "$ENV{ARMFVP_${filetype}_FILE}" CACHE FILEPATH
"ARM FVP ${filetype} File specified in environment"
)
endif()
if(NOT EXISTS "${ARMFVP_${filetype}_FILE}")
string(TOLOWER ${filetype} filename)
message(FATAL_ERROR "Please specify ARMFVP_${filetype}_FILE in environment "
"or with -DARMFVP_${filetype}_FILE=</path/to/${filename}.bin>")
endif()
endforeach()
set(ARMFVP_FLAGS ${ARMFVP_FLAGS}
-C bp.secureflashloader.fname=${ARMFVP_BL1_FILE}
-C bp.flashloader0.fname=${ARMFVP_FIP_FILE}
--data cluster0.cpu0="${APPLICATION_BINARY_DIR}/zephyr/${KERNEL_BIN_NAME}"@0x88000000
)
else()
set(ARMFVP_FLAGS ${ARMFVP_FLAGS}
-a ${APPLICATION_BINARY_DIR}/zephyr/${KERNEL_ELF_NAME}
)
endif()
add_custom_target(run
COMMAND
${ARMFVP}
${ARMFVP_FLAGS}
-a ${APPLICATION_BINARY_DIR}/zephyr/${KERNEL_ELF_NAME}
DEPENDS ${ARMFVP} ${logical_target_for_zephyr_elf}
WORKING_DIRECTORY ${APPLICATION_BINARY_DIR}
COMMENT "FVP: ${ARMFVP}"