| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556 |
- QEMU SBSA Target
- ================
- Trusted Firmware-A (TF-A) implements the EL3 firmware layer for QEMU SBSA
- Armv8-A. While running Qemu from command line, we need to supply two Flash
- images. First Secure BootRom is supplied by -pflash argument. This Flash image
- is made by EDK2 build system by composing BL1 and FIP. Second parameter for Qemu
- is responsible for Non-secure rom which also given with -pflash argument and
- contains of UEFI and EFI variables (also made by EDK2 build system). Semihosting
- is not used
- When QEMU starts all CPUs are released simultaneously, BL1 selects a
- primary CPU to handle the boot and the secondaries are placed in a polling
- loop to be released by normal world via PSCI.
- BL2 edits the FDT, generated by QEMU at run-time to add a node describing PSCI
- and also enable methods for the CPUs.
- Current limitations:
- - Only cold boot is supported
- To build TF-A:
- ::
- git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git tfa
- cd tfa
- export CROSS_COMPILE=aarch64-none-elf-
- make PLAT=qemu_sbsa all fip
- To build TF-A with BL32 and SPM enabled(StandaloneMM as a Secure Payload):
- ::
- git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git tfa
- cd tfa
- export CROSS_COMPILE=aarch64-none-elf-
- make PLAT=qemu_sbsa BL32=../STANDALONE_MM.fd SPM_MM=1 EL3_EXCEPTION_HANDLING=1 all fip
- Images will be placed at build/qemu_sbsa/release (bl1.bin and fip.bin).
- Need to copy them into top directory for EDK2 compilation.
- ::
- cp build/qemu_sbsa/release/bl1.bin ../
- cp build/qemu_sbsa/release/fip.bin ../
- Those images cannot be used by itself (no semihosing support). Flash images are built by
- EDK2 build system, refer to edk2-platform repo for full build instructions.
- ::
- git clone https://github.com/tianocore/edk2-platforms.git
- Platform/Qemu/SbsaQemu/Readme.md
|
