Re: [PATCH v2] target/riscv: Remove experimental prefix from "B" extension

[LIU Zhiwei]

On 2024/5/14 19:02, Rob Bradford wrote:
> This extension has now been ratified:
> https://jira.riscv.org/browse/RVS-2006 so the "x-" prefix can be
> removed.
>
> Since this is now a ratified extension add it to the list of extensions
> included in the "max" CPU variant.
>
> Signed-off-by: Rob Bradford <rbradford@rivosinc.com>
> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
> ---
>   target/riscv/cpu.c         | 2 +-
>   target/riscv/tcg/tcg-cpu.c | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index eb1a2e7d6d..861d9f4350 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -1396,7 +1396,7 @@ static const MISAExtInfo misa_ext_info_arr[] = {
>       MISA_EXT_INFO(RVJ, "x-j", "Dynamic translated languages"),
>       MISA_EXT_INFO(RVV, "v", "Vector operations"),
>       MISA_EXT_INFO(RVG, "g", "General purpose (IMAFD_Zicsr_Zifencei)"),
> -    MISA_EXT_INFO(RVB, "x-b", "Bit manipulation (Zba_Zbb_Zbs)")
> +    MISA_EXT_INFO(RVB, "b", "Bit manipulation (Zba_Zbb_Zbs)")
>   };
>   
>   static void riscv_cpu_validate_misa_mxl(RISCVCPUClass *mcc)
> diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
> index 40054a391a..164a13ad0f 100644
> --- a/target/riscv/tcg/tcg-cpu.c
> +++ b/target/riscv/tcg/tcg-cpu.c
> @@ -1281,7 +1281,7 @@ static void riscv_init_max_cpu_extensions(Object *obj)
>       const RISCVCPUMultiExtConfig *prop;
>   
>       /* Enable RVG, RVJ and RVV that are disabled by default */
> -    riscv_cpu_set_misa_ext(env, env->misa_ext | RVG | RVJ | RVV);
> +    riscv_cpu_set_misa_ext(env, env->misa_ext | RVB | RVG | RVJ | RVV);
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>

Zhiwei
>   
>       for (prop = riscv_cpu_extensions; prop && prop->name; prop++) {
>           isa_ext_update_enabled(cpu, prop->offset, true);