Re: [PATCH v6 21/25] target/riscv: Suppress pte update with is_debug

[Alistair Francis]

On Sat, Mar 25, 2023 at 10:56 PM Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> The debugger should not modify PTE_A or PTE_D.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

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

Alistair

> ---
>  target/riscv/cpu_helper.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
> index ce12dcec1d..b26840e46c 100644
> --- a/target/riscv/cpu_helper.c
> +++ b/target/riscv/cpu_helper.c
> @@ -1015,7 +1015,7 @@ restart:
>                  (access_type == MMU_DATA_STORE ? PTE_D : 0);
>
>      /* Page table updates need to be atomic with MTTCG enabled */
> -    if (updated_pte != pte) {
> +    if (updated_pte != pte && !is_debug) {
>          if (!hade) {
>              return TRANSLATE_FAIL;
>          }
> --
> 2.34.1
>
>