This patch set aims to expose 32-bit RISC-V cpu to RV64 QEMU. Thus qemu-system-riscv64 can directly boot a RV32 Linux.
This patch set has been tested with 6.9.0 Linux Image. And add an avocado test in tests/avocado. v3: Rebase to the master branch v2: Remove the line that was inadvertently left in PATCH v1 4/6. Add an avocado test. v1: https://mail.gnu.org/archive/html/qemu-riscv/2024-06/msg00501.html TANG Tiancheng (7): target/riscv: Add fw_dynamic_info32 for booting RV32 OpenSBI target/riscv: Adjust PMP size for no-MMU RV64 QEMU running RV32 target/riscv: Correct SXL return value for RV32 in RV64 QEMU target/riscv: Detect sxl to set bit width for RV32 in RV64 target/riscv: Correct mcause/scause bit width for RV32 in RV64 QEMU target/riscv: Enable RV32 CPU support in RV64 QEMU tests/avocado: Add an avocado test for riscv64 configs/targets/riscv64-softmmu.mak | 2 +- hw/riscv/boot.c | 35 +++++++++++++++++---------- hw/riscv/sifive_u.c | 3 ++- include/hw/riscv/boot.h | 4 +++- include/hw/riscv/boot_opensbi.h | 29 ++++++++++++++++++++++ target/riscv/cpu.c | 17 +++++++++---- target/riscv/cpu.h | 5 +++- target/riscv/cpu_helper.c | 25 +++++++++++++------ target/riscv/pmp.c | 2 +- tests/avocado/boot_linux_console.py | 37 +++++++++++++++++++++++++++++ 10 files changed, 131 insertions(+), 28 deletions(-) -- 2.25.1