diff mbox series

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

Message ID 20230808114711.2013842-17-maz@kernel.org (mailing list archive)
State New, archived
Headers show
Series KVM: arm64: NV trap forwarding infrastructure | expand

Commit Message

Marc Zyngier Aug. 8, 2023, 11:47 a.m. UTC 
Now that we properly implement FEAT_EVT (as we correctly forward
traps), expose it to guests.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/kvm/nested.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

Comments

Jing Zhang Aug. 14, 2023, 9:08 p.m. UTC | #1 
Hi Marc,

On Tue, Aug 8, 2023 at 4:48 AM Marc Zyngier <maz@kernel.org> wrote:
>
> Now that we properly implement FEAT_EVT (as we correctly forward
> traps), expose it to guests.
>
> Reviewed-by: Eric Auger <eric.auger@redhat.com>
> Signed-off-by: Marc Zyngier <maz@kernel.org>
> ---
>  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@google.com>

Jing
diff mbox series

Patch

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)	|