[v2] target/riscv: Simplification for RVH related check and code style fix

[PATCH v2 02/10] target/riscv: Remove redundant check on RVH

Posted by Weiwei Li 2 years, 10 months ago

Check on riscv_cpu_virt_enabled contains the check on RVH.

Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
---
 target/riscv/op_helper.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c
index 84ee018f7d..1eecae9547 100644
--- a/target/riscv/op_helper.c
+++ b/target/riscv/op_helper.c
@@ -278,8 +278,7 @@ target_ulong helper_sret(CPURISCVState *env)
         riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, GETPC());
     }
 
-    if (riscv_has_ext(env, RVH) && riscv_cpu_virt_enabled(env) &&
-        get_field(env->hstatus, HSTATUS_VTSR)) {
+    if (riscv_cpu_virt_enabled(env) && get_field(env->hstatus, HSTATUS_VTSR)) {
         riscv_raise_exception(env, RISCV_EXCP_VIRT_INSTRUCTION_FAULT, GETPC());
     }
 
-- 
2.25.1

Re: [PATCH v2 02/10] target/riscv: Remove redundant check on RVH

Posted by Alistair Francis 2 years, 10 months ago

On Mon, Mar 27, 2023 at 6:10 PM Weiwei Li <liweiwei@iscas.ac.cn> wrote:
>
> Check on riscv_cpu_virt_enabled contains the check on RVH.
>
> Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> Reviewed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  target/riscv/op_helper.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/target/riscv/op_helper.c b/target/riscv/op_helper.c
> index 84ee018f7d..1eecae9547 100644
> --- a/target/riscv/op_helper.c
> +++ b/target/riscv/op_helper.c
> @@ -278,8 +278,7 @@ target_ulong helper_sret(CPURISCVState *env)
>          riscv_raise_exception(env, RISCV_EXCP_ILLEGAL_INST, GETPC());
>      }
>
> -    if (riscv_has_ext(env, RVH) && riscv_cpu_virt_enabled(env) &&
> -        get_field(env->hstatus, HSTATUS_VTSR)) {
> +    if (riscv_cpu_virt_enabled(env) && get_field(env->hstatus, HSTATUS_VTSR)) {
>          riscv_raise_exception(env, RISCV_EXCP_VIRT_INSTRUCTION_FAULT, GETPC());
>      }
>
> --
> 2.25.1
>
>