[v1] target/arm: Implement ARMv8.3-PAuth

[Qemu-devel] [PATCH 08/26] target/arm: Decode PAuth within disas_data_proc_2src

Posted by Richard Henderson 7 years, 2 months ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/translate-a64.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 7ba4c996cf..d034a5edf3 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -4884,6 +4884,13 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
     case 11: /* RORV */
         handle_shift_reg(s, A64_SHIFT_TYPE_ROR, sf, rm, rn, rd);
         break;
+    case 12: /* PACGA */
+        if (sf == 0 || !dc_isar_feature(aa64_pauth, s)) {
+            goto do_unallocated;
+        }
+        gen_helper_pacga(cpu_reg(s, rd), cpu_env,
+                         cpu_reg(s, rn), cpu_reg_sp(s, rm));
+        break;
     case 16:
     case 17:
     case 18:
@@ -4899,6 +4906,7 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
         break;
     }
     default:
+    do_unallocated:
         unallocated_encoding(s);
         break;
     }
-- 
2.17.2

Re: [Qemu-devel] [PATCH 08/26] target/arm: Decode PAuth within disas_data_proc_2src

Posted by Peter Maydell 7 years, 2 months ago

On Fri, 7 Dec 2018 at 10:36, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/translate-a64.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
> index 7ba4c996cf..d034a5edf3 100644
> --- a/target/arm/translate-a64.c
> +++ b/target/arm/translate-a64.c
> @@ -4884,6 +4884,13 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
>      case 11: /* RORV */
>          handle_shift_reg(s, A64_SHIFT_TYPE_ROR, sf, rm, rn, rd);
>          break;
> +    case 12: /* PACGA */
> +        if (sf == 0 || !dc_isar_feature(aa64_pauth, s)) {
> +            goto do_unallocated;
> +        }
> +        gen_helper_pacga(cpu_reg(s, rd), cpu_env,
> +                         cpu_reg(s, rn), cpu_reg_sp(s, rm));
> +        break;
>      case 16:
>      case 17:
>      case 18:
> @@ -4899,6 +4906,7 @@ static void disas_data_proc_2src(DisasContext *s, uint32_t insn)
>          break;
>      }
>      default:
> +    do_unallocated:
>          unallocated_encoding(s);
>          break;
>      }

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM