Re: [PATCH v3 16/27] KVM: arm64: nv: Expose FEAT_EVT to nested guests

[Jing Zhang <jingzhangos@xxxxxxxxxx>]

Hi Marc,

On Tue, Aug 8, 2023 at 4:48 AM Marc Zyngier <maz@xxxxxxxxxx> wrote:
>
> Now that we properly implement FEAT_EVT (as we correctly forward
> traps), expose it to guests.
>
> Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
> Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
> ---
>  arch/arm64/kvm/nested.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index 315354d27978..7f80f385d9e8 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -124,8 +124,7 @@ void access_nested_id_reg(struct kvm_vcpu *v, struct sys_reg_params *p,
>                 break;
>
>         case SYS_ID_AA64MMFR2_EL1:
> -               val &= ~(NV_FTR(MMFR2, EVT)     |
> -                        NV_FTR(MMFR2, BBM)     |
> +               val &= ~(NV_FTR(MMFR2, BBM)     |
>                          NV_FTR(MMFR2, TTL)     |
>                          GENMASK_ULL(47, 44)    |
>                          NV_FTR(MMFR2, ST)      |
> --
> 2.34.1
>
>

Reviewed-by: Jing Zhang <jingzhangos@xxxxxxxxxx>

Jing