Re: [RFC PATCH v11 16/29] KVM: Allow arch code to track number of memslot address spaces per VM

[Paolo Bonzini]

On 7/19/23 01:44, Sean Christopherson wrote:
> @@ -4725,9 +4725,9 @@ static int kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
>   	case KVM_CAP_IRQ_ROUTING:
>   		return KVM_MAX_IRQ_ROUTES;
>   #endif
> -#if KVM_ADDRESS_SPACE_NUM > 1
> +#if KVM_MAX_NR_ADDRESS_SPACES > 1
>   	case KVM_CAP_MULTI_ADDRESS_SPACE:
> -		return KVM_ADDRESS_SPACE_NUM;
> +		return KVM_MAX_NR_ADDRESS_SPACES;
>   #endif

Since this is a VM ioctl, it should return 
kvm_arch_nr_memslot_as_ids(kvm) if kvm != NULL.

Paolo