Re: [PATCH v6 0/8] target/riscv: Expose RV32 cpu to RV64 QEMU

[Alistair Francis]

On Sat, Jul 20, 2024 at 9:15 AM LIU Zhiwei <zhiwei_liu@linux.alibaba.com> wrote:
>
> 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 tuxrun test in tests/avocado.
>
> v6:
>   Use TUXRUN test case instead of boot_linux_console
>   Add any32 and max32 cpu for RV64 QEMU
>
> v5:
>   Rebase to master and add tags
>
> v4:
>   Drop UL completely in PATCH v3 2/7, 4/7, 5/7.
>   Avocado: Add "if=none" to "-drive" option in QEMU command line
>
> 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
>
>
> LIU Zhiwei (2):
>   target/riscv: Add any32 and max32 CPU for RV64 QEMU
>   tests/avocado: Boot Linux for RV32 cpu on RV64 QEMU
>
> TANG Tiancheng (6):
>   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

Thanks!

Applied to riscv-to-apply.next

Alistair

>
>  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-qom.h              |  2 ++
>  target/riscv/cpu.c                  | 30 +++++++++++++++++--------
>  target/riscv/cpu.h                  |  5 ++++-
>  target/riscv/cpu_helper.c           | 25 +++++++++++++++------
>  target/riscv/pmp.c                  |  2 +-
>  tests/avocado/tuxrun_baselines.py   | 16 +++++++++++++
>  11 files changed, 120 insertions(+), 33 deletions(-)
>
> --
> 2.25.1
>
>