Re: [RFC PATCH v5 08/29] KVM: selftests: TDX: Add TDX lifecycle test

[Yan Zhao]

> diff --git a/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx_util.c b/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx_util.c
> index 063ff486fb86..b302060049d5 100644
> --- a/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx_util.c
> +++ b/tools/testing/selftests/kvm/lib/x86_64/tdx/tdx_util.c
> @@ -224,6 +224,7 @@ static void tdx_enable_capabilities(struct kvm_vm *vm)
>  		      KVM_X2APIC_API_USE_32BIT_IDS |
>  			      KVM_X2APIC_API_DISABLE_BROADCAST_QUIRK);
>  	vm_enable_cap(vm, KVM_CAP_SPLIT_IRQCHIP, 24);
> +	vm_enable_cap(vm, KVM_CAP_MAX_VCPUS, 512);

This is not a must for TD life cycle?
Though I know, currently, the selftest will fail without setting this
line, due to TD's default max vcpu count is -1.
But I guess it's an error.
https://lore.kernel.org/all/ZeGC64sAzg4EN3G5@xxxxxxxxxxxxxxxxxxxxxxxxx/