Re: [Qemu-devel] [PATCHv3 5/5] RISC-V: Fix a PMP check with the correct access size

[Alistair Francis <alistair23@gmail.com>]

On Tue, May 21, 2019 at 3:45 AM Hesham Almatary
<Hesham.Almatary@cl.cam.ac.uk> wrote:
>
> The PMP check should be of the memory access size rather
> than TARGET_PAGE_SIZE.
>
> Signed-off-by: Hesham Almatary <Hesham.Almatary@cl.cam.ac.uk>

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 d0b0f9cf88..ce1f47e4e3 100644
> --- a/target/riscv/cpu_helper.c
> +++ b/target/riscv/cpu_helper.c
> @@ -410,7 +410,7 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
>
>      if (riscv_feature(env, RISCV_FEATURE_PMP) &&
>          (ret == TRANSLATE_SUCCESS) &&
> -        !pmp_hart_has_privs(env, pa, TARGET_PAGE_SIZE, 1 << access_type)) {
> +        !pmp_hart_has_privs(env, pa, size, 1 << access_type)) {
>          ret = TRANSLATE_PMP_FAIL;
>      }
>      if (ret == TRANSLATE_PMP_FAIL) {
> --
> 2.17.1
>
>