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- PoC implementation of OP-TEE OS and OpenSBI
- Run optee_test on QEMU virt (riscv64, dual-core)
- Run optee_test on Andes AE350 platform (QEMU and FPGA)
- Leverage domain context switching and
RPXYMPXY extension for OP-TEE SPD driver
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QEMU Virt test environment
This implementation uses PMP PMPs to isolate TEE and REE, no secure interrupt registered, ; software, timer and external interrupts will cause TEE managed exit to REE for interrupt handling.
Boot process overview:
Memory Layout:
| Address | Usage | |
|---|---|---|
| RAM | 0x1_7FFF_FFFF 0x0_F220_0000 | N/A |
| 0x0_F1FF_FFFF 0x0_F100_0000 (16MiB) | OP-TEE OS core & TA | |
| 0x0_8129_D800 0x0_8120_0000 (630KiB) | U-Boot proper load address | |
| 0x0_8015_FFFF 0x0_8014_0000 | OpenSBI (data) | |
| 0x0_8013_FFFF 0x0_8010_0000 | OpenSBI (text) | |
| 0x0_8000_A000 0x0_8000_0000 | U-Boot SPL | |
| MMIO | 0x0_0C5F_FFFF 0x0_0C40_0000 | PLIC |
| 0x0_0C3F_FFFF 0x0_0C00_0000 | PLIC | |
| 0x0_1000_0FFF 0x0_1000_0000 | UART | |
| 0x0_0200_FFFF 0x0_0200_0000 | CLINT |
build commandsHow to build and run optee_test:
| Code Block | ||
|---|---|---|
| ||
git clone https://gitlab.com/riseproject/riscv-optee/buildroot.git -b dev-optee-mpxy cd buildroot make qemu_riscv64_virt_optee_defconfig make ./output/images/start-qemu.sh # launch another terminal and connect to normal world telnet localhost 64320 # run 'xtest' or 'optee_example*' in the shell |
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Dependencies
- MPXY/RPMI Specification
- SBI_00_04 - Domain Context Switch Support
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