[v1] target/arm: Implement ARMv8.5-BTI

[Qemu-devel] [PATCH 09/11] target/arm: Enable BTI for -cpu max

Posted by Richard Henderson 7 years, 1 month ago

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/cpu64.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 713d2d5579..64fbe75eca 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -372,6 +372,10 @@ static void aarch64_max_initfn(Object *obj)
         t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
         cpu->isar.id_aa64pfr0 = t;
 
+        t = cpu->isar.id_aa64pfr1;
+        t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
+        cpu->isar.id_aa64pfr1 = t;
+
         t = cpu->isar.id_aa64mmfr1;
         t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */
         t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);
-- 
2.17.2

Re: [Qemu-devel] [PATCH 09/11] target/arm: Enable BTI for -cpu max

Posted by Peter Maydell 7 years ago

On Thu, 10 Jan 2019 at 12:18, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
>  target/arm/cpu64.c | 4 ++++
>  1 file changed, 4 insertions(+)
>
> diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
> index 713d2d5579..64fbe75eca 100644
> --- a/target/arm/cpu64.c
> +++ b/target/arm/cpu64.c
> @@ -372,6 +372,10 @@ static void aarch64_max_initfn(Object *obj)
>          t = FIELD_DP64(t, ID_AA64PFR0, ADVSIMD, 1);
>          cpu->isar.id_aa64pfr0 = t;
>
> +        t = cpu->isar.id_aa64pfr1;
> +        t = FIELD_DP64(t, ID_AA64PFR1, BT, 1);
> +        cpu->isar.id_aa64pfr1 = t;
> +
>          t = cpu->isar.id_aa64mmfr1;
>          t = FIELD_DP64(t, ID_AA64MMFR1, HPDS, 1); /* HPD */
>          t = FIELD_DP64(t, ID_AA64MMFR1, LO, 1);
> --

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

thanks
-- PMM