Re: [PATCH] target/arm: Fix MTE access checks for disabled SEL2

[Richard Henderson]

On 3/28/22 11:31, Idan Horowitz wrote:
> While not mentioned anywhere in the actual specification text, the
> HCR_EL2.ATA bit is treated as '1' when EL2 is disabled at the current
> security state. This can be observed in the psuedo-code implementation
> of AArch64.AllocationTagAccessIsEnabled().
>
> Signed-off-by: Idan Horowitz <idan.horowitz@gmail.com>
> ---
>   target/arm/helper.c    | 2 +-
>   target/arm/internals.h | 2 +-
>   2 files changed, 2 insertions(+), 2 deletions(-)

I was immediately thinking, didn't I just fix this?
But I was patching pauth.  Anyway, good catch.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~