This commit allows the `QEMU_KERNEL_OPTION` variable, which can be
overridden by the `board.cmake`, to contain references to the variables
that are not available at the time of `board.cmake` inclusion, by
expanding its escpaed variable references in `cmake/emu/qemu.cmake`
which is included nearby the end of the root `CMakeLists.txt`.
With this change, the `board.cmake` can escape variable references as
follows and allow them to be expanded later:
set(QEMU_KERNEL_OPTION "-device;loader,file=\$<TARGET_FILE:$\{...}>")
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit enables the QEMU icount emulation mode for improved timing
stability.
In normal emulation mode (without icount), the emulation timing of the
TTC system timer is particularly unstable and this results in a high CI
failure rate.
For more details, refer to the issues #14173 and #22904.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit adds a temporary hack to support CI testing of the
qemu_cortex_r5 platform.
The Xilinx QEMU, required to run the tests for this platform, is
currently not available in the default SDK for CI (version 0.10.3) and
attempting to run any tests with the AArch64 QEMU included in this SDK
will cause failures (see #20217).
Since the latest SDK (version 0.11.0-alpha-8) has been added to the CI
image to allow initial testing, this hack automatically detects this
and uses the Xilinx QEMU for testing the qemu_cortex_r5 platform.
When the Zephyr SDK 0.11.0 is available as the default SDK for CI in
the future, this commit should be reverted.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
This commit modifies the 'qemu_cortex_r5' board qemu emulation to use
the arm-generic-fdt machine with the Xilinx-provided zcu102 device tree
instead of the hard-coded xlnx-zcu102 machine, which is very primitive
and cannot properly emulate the Cortex-R5 RPU of ZynqMP.
The QEMU zcu102 FDT (fdt-single_arch-zcu102-arm.dtb) in this commit was
generated from the v2019.2 release of the Xilinx/qemu-devicetrees.
Zephyr SDK version 0.11 Alpha 4 or above is required to use this, as
arm-generic-fdt is supported only by the Xilinx QEMU fork which was
added to the Zephyr SDK in the version 0.11 Alpha 4.
For more details, refer to the issue #20217.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
