[PATCH v2 13/13] KVM: arm64: nv: Advertise support for PAuth

[Joey Gouly]

On Mon, Feb 26, 2024 at 10:06:01AM +0000, Marc Zyngier wrote:
> Now that we (hopefully) correctly handle ERETAx, drop the masking
> of the PAuth feature (something that was not even complete, as
> APA3 and AGA3 were still exposed).
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  arch/arm64/kvm/nested.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index ced30c90521a..6813c7c7f00a 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -35,13 +35,9 @@ static u64 limit_nv_id_reg(u32 id, u64 val)
>  		break;
>  
>  	case SYS_ID_AA64ISAR1_EL1:
> -		/* Support everything but PtrAuth and Spec Invalidation */
> +		/* Support everything but Spec Invalidation */
>  		val &= ~(GENMASK_ULL(63, 56)	|
> -			 NV_FTR(ISAR1, SPECRES)	|
> -			 NV_FTR(ISAR1, GPI)	|
> -			 NV_FTR(ISAR1, GPA)	|
> -			 NV_FTR(ISAR1, API)	|
> -			 NV_FTR(ISAR1, APA));
> +			 NV_FTR(ISAR1, SPECRES));
>  		break;
>  
>  	case SYS_ID_AA64PFR0_EL1:

Reviewed-by: Joey Gouly <joey.gouly at arm.com>

Thanks,
Joey