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Re: [PATCH v4 17/20] target/riscv: Fix check range for first fault only


From: Alistair Francis
Subject: Re: [PATCH v4 17/20] target/riscv: Fix check range for first fault only
Date: Fri, 19 Nov 2021 22:42:15 +1000

On Fri, Nov 12, 2021 at 2:05 AM LIU Zhiwei <zhiwei_liu@c-sky.com> wrote:
>
> Only check the range that has passed the address translation.
>
> Signed-off-by: LIU Zhiwei <zhiwei_liu@c-sky.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

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

Alistair

> ---
>  target/riscv/vector_helper.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
> index e49b431610..4cd6476b82 100644
> --- a/target/riscv/vector_helper.c
> +++ b/target/riscv/vector_helper.c
> @@ -630,12 +630,12 @@ vext_ldff(void *vd, void *v0, target_ulong base,
>                                           cpu_mmu_index(env, false));
>                  if (host) {
>  #ifdef CONFIG_USER_ONLY
> -                    if (page_check_range(addr, nf * msz, PAGE_READ) < 0) {
> +                    if (page_check_range(addr, offset, PAGE_READ) < 0) {
>                          vl = i;
>                          goto ProbeSuccess;
>                      }
>  #else
> -                    probe_pages(env, addr, nf * msz, ra, MMU_DATA_LOAD);
> +                    probe_pages(env, addr, offset, ra, MMU_DATA_LOAD);
>  #endif
>                  } else {
>                      vl = i;
> --
> 2.25.1
>
>



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