Re: [PATCH 16/22] KVM: arm64: nv: Expose FEAT_HAFDBS

[Leonardo Bras <leo.bras@arm.com>]

On Tue, Jun 23, 2026 at 11:41:55AM -0700, Oliver Upton wrote:
> Everything is in place now to support hardware dirty state management.
> Flip the corresponding bit and advertise the feature to the guest.
> 
> Signed-off-by: Oliver Upton <oupton@kernel.org>
> ---
>  arch/arm64/kvm/nested.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/kvm/nested.c b/arch/arm64/kvm/nested.c
> index 4d128003ae7a..2408d604a1e1 100644
> --- a/arch/arm64/kvm/nested.c
> +++ b/arch/arm64/kvm/nested.c
> @@ -1790,7 +1790,7 @@ u64 limit_nv_id_reg(struct kvm *kvm, u32 reg, u64 val)
>  		if (test_bit(KVM_ARM_VCPU_HAS_EL2_E2H0, kvm->arch.vcpu_features))
>  			val &= ~ID_AA64MMFR1_EL1_VH;
>  
> -		val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, AF);
> +		val = ID_REG_LIMIT_FIELD_ENUM(val, ID_AA64MMFR1_EL1, HAFDBS, DBM);
>  		break;
>  
>  	case SYS_ID_AA64MMFR2_EL1:
> -- 
> 2.47.3
> 

LGTM! FWIW:
Reviewed-by: Leonardo Bras <leo.bras@arm.com>

Thanks!
Leo